CN114047079A - Alloy structural component testing device and method - Google Patents
Alloy structural component testing device and method Download PDFInfo
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- CN114047079A CN114047079A CN202111593451.7A CN202111593451A CN114047079A CN 114047079 A CN114047079 A CN 114047079A CN 202111593451 A CN202111593451 A CN 202111593451A CN 114047079 A CN114047079 A CN 114047079A
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- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The application discloses an alloy structural component testing device, which comprises a supporting frame, a testing device and a testing device, wherein the supporting frame comprises a fixing platform and a supporting platform; the force loading system comprises a first connecting part, a clamp assembly, a second connecting part and a force loading assembly which are sequentially connected; one end of the first connecting part is connected with the fixed platform, the other end of the first connecting part is connected with the upper end of the clamp assembly, the lower end of the clamp assembly is connected with the upper end of the second connecting part, and the lower end of the second connecting part is connected with the force loading assembly; the temperature control system comprises a temperature control chamber and a temperature control controller for controlling the temperature of the temperature control chamber; the clamp assembly is located in the temperature control chamber. When the force loading system applies force to the alloy structural component, the temperature control system can provide a high-temperature environment for the alloy structural component at the same time, so that the alloy structural component is tested in a stress and high-temperature composite environment, the oxidation of an alloy structural component is researched in the stress and high-temperature composite environment, and a basis is provided for the design, the service life and the service life prediction of the alloy structural component.
Description
Technical Field
The application belongs to the technical field of performance research of alloy structural components, and particularly relates to an alloy structural component testing device and an alloy structural testing method.
Background
The alloy structural component is widely applied to the industries of aerospace, automobiles, petrochemical industry, nuclear power and the like, and is in a high-temperature and complex stress composite environment. The stress can be applied to the alloy structural component in a dynamic state or in a static state, for example, when the automobile is walking and the automobile body shakes up and down, the stress applied to the alloy structural component serving as the automobile structural component is dynamic; the force is applied statically to an alloy structural member such as petroleum processing equipment. Stresses in the alloy structural member, whether caused by dynamic or static forces, can have an effect on the performance of the alloy structural member. In the case that the prior alloy structural component fails in a high-temperature environment, stress can be found to induce microcracks on the surface of the alloy, so that the surface strength is reduced, and the failure of the alloy structural component in the high-temperature environment is accelerated. Therefore, in combination with the influence of the stress on the performance of the alloy structural component in actual use, it is necessary to evaluate the oxidation performance of the alloy structural component in a high-temperature environment, and the method has important significance for the design, the use and the life prediction of the alloy structural component.
However, the existing testing device and method for the alloy structural component can reliably test under the stress condition, and the oxidation of the alloy structural component under the environment of compounding the stress and high temperature is difficult to study.
Disclosure of Invention
In order to solve the defects of the prior art, the application provides an alloy structural component testing device and an alloy structural component testing method, the testing device comprises a supporting frame, a force loading system and a temperature control system, the force loading system applies force to the alloy structural component to enable stress to be generated inside the alloy structural component, the temperature control system enables the alloy structural component to be in a high-temperature environment, the alloy structural component can be placed in the stress and high-temperature environment at the same time, the oxidation influence of the stress and the high temperature on an alloy structural component is tested, the oxidation performance of the alloy structural component in the high-temperature environment can be objectively evaluated, and the testing device and the testing method have important significance for design, use and service life prediction of the alloy structural component. The testing method takes the stress and the high temperature as the testing environment of the alloy structural component, compares the testing structure, can analyze the influence of the stress and the high temperature on the oxidation of the alloy structural component, and provides reliable testing data for the design, the use and the service life prediction of the alloy structural component.
In one aspect, the present application provides a test apparatus for testing an alloy structural member, the test apparatus comprising:
the supporting frame comprises a fixed platform and a supporting platform, the fixed platform is positioned above the supporting platform, and an accommodating space is formed between the fixed platform and the supporting platform;
the force loading system comprises a first connecting part, a clamp assembly, a second connecting part and a force loading assembly which are sequentially connected, wherein the clamp assembly is used for clamping the alloy structural component; one end of the first connecting part is connected with the fixed platform, the other end of the first connecting part is connected with the upper end of the clamp assembly, the lower end of the clamp assembly is connected with the upper end of the second connecting part, and the lower end of the second connecting part is connected with the force loading assembly;
the temperature control system comprises a temperature control chamber and a temperature control controller for controlling the temperature of the temperature control chamber; the temperature control room is located the accommodation space, the temperature control room (31) is arranged on the supporting platform (12), and the clamp assembly is located in the temperature control room.
Further, the clamp assembly comprises at least two clamps, and the alloy structural component is arranged between every two adjacent clamps.
Further, the clamp assembly comprises a first clamp and a second clamp, and at least one third clamp is arranged between the first clamp and the second clamp; one end of the first clamp is connected with the first connecting part, and the other end of the first clamp is connected with the alloy structural component; one end of the second clamp is connected with the alloy structural component, and the other end of the second clamp is connected with the second connecting part.
Further, the first clamp comprises a first connecting section and a first clamp part which are connected, the first connecting section is connected with the first connecting part, and the first clamp part is connected with the alloy structural component; the first clamp part is provided with a first guide groove and a first limiting groove, and an opening of the first limiting groove faces the first guide groove so that the first clamp part is in a hook shape; the second clamp comprises a second connecting section and a second clamp part which are connected, the second connecting section is connected with the second connecting part, and the second clamp part is connected with the alloy structural component; the second clamp part is provided with a second guide groove and a second limiting groove, and an opening of the second limiting groove faces the second guide groove so that the second clamp part is in a hook shape; the third anchor clamps include two third anchor clamps portions, two be equipped with the third guiding groove between the third anchor clamps portion, just third anchor clamps portion is equipped with the third spacing groove, the opening orientation of third spacing groove the third guiding groove, so that third anchor clamps portion is the hook shape.
Furthermore, the first clamp part is provided with a first accommodating groove, and the first accommodating groove is connected with the first limiting groove and is positioned in the middle of the first limiting groove; the second clamp part is provided with a second containing groove, and the second containing groove is connected with the second limiting groove and is positioned in the middle of the second limiting groove; the third clamp part is provided with a third containing groove, and the third containing groove is connected with the third limiting groove and is positioned in the middle of the third limiting groove.
Furthermore, the temperature control chamber is provided with at least two temperature sensing parts, the temperature sensing parts are connected with the temperature control controller, and the temperature sensing parts are used for detecting the temperature of the alloy structural part.
Further, the support frame comprises a plurality of support columns, each support column comprises a first end and a second end, and the first ends are connected with the fixed platform; the supporting platform is connected with the supporting column, and a preset distance is reserved between the supporting platform and the second end; the temperature control room is provided with a first opening, the supporting platform is provided with a second opening, the position of the first opening corresponds to the position of the second opening, and the force loading assembly penetrates through the first opening and the second opening to be located between the supporting platform and the second end.
Further, power loading subassembly includes connecting rod, weight tray and weight, connecting rod one end is connected the second connecting portion, the other end is connected the weight tray, the weight can set up the weight tray.
Further, the temperature control system comprises an infrared thermometer, the infrared thermometer is connected with the temperature control controller, the temperature control chamber is provided with a perspective window, and the position of the perspective window corresponds to the position of the infrared thermometer.
In a second aspect, the present application provides an alloy structural member testing method using the alloy structural member testing apparatus according to the first aspect, the method comprising:
dividing alloy structural components into a plurality of groups, and pretreating the alloy structural components of the groups;
clamping each group of alloy structural components by using a clamp assembly, applying force to each group of alloy structural components by using a force application assembly, and placing each group of alloy structural components in different temperature control chambers respectively so as to heat each group of alloy structural components;
stopping applying force and heating to each group of alloy structural components at different times;
and acquiring the thickness of the oxide layer of each group of alloy structural components, and recording and comparing.
Further, the pre-treatment comprises cutting and polishing the alloy structural member; cutting the alloy structural component to enable two ends of the alloy structural component to be provided with clamping parts, wherein a testing part is arranged between the two clamping parts and is provided with at least two cross sections with different areas; polishing the alloy structural member to provide the alloy structural member with a smooth surface.
Further, the obtaining, recording and comparing the oxide layer thickness of each group of the alloy structural components includes:
sealing each set of the alloy structural members with an epoxy resin;
cutting each group of alloy structural components to obtain cut surfaces;
and obtaining the thickness of the oxide layer of each group of alloy structural components according to the cutting surface, and recording and comparing.
Compared with the prior art, the invention has the beneficial effects that: when the force loading system applies force to the alloy structural component, the temperature control system can provide a high-temperature environment for the alloy structural component at the same time, so that the alloy structural component is tested in a stress and high-temperature composite environment, the oxidation of an alloy structural component is researched in the stress and high-temperature composite environment, and a basis is provided for the design, the service life and the service life prediction of the alloy structural component.
Drawings
In order to more clearly illustrate the embodiments or prior art solutions of the present application, the drawings needed for describing the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and that other drawings can be obtained by those skilled in the art without inventive exercise.
FIG. 1 is a schematic structural diagram of an alloy structural member testing device according to an embodiment of the present application;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic view of a clamp assembly of one embodiment of the present application clamping an alloy structural member;
FIG. 4 is a side view of a first clamp of an embodiment of the present application;
FIG. 5 is a front view of a first clamp according to an embodiment of the present application;
FIG. 6 is a side view of a second clamp of an embodiment of the present application;
FIG. 7 is a front view of a second clamp according to an embodiment of the present application;
FIG. 8 is a side view of a third clamp of an embodiment of the present application;
FIG. 9 is an elevation view of a third clamp of an embodiment of the present application;
FIG. 10 is a schematic structural view of an alloy structural member according to an embodiment of the present application.
Description of the symbols of the drawings: 1. a support frame; 11. a fixed platform; 12. a support platform; 13. a support pillar; 131. a first end; 132. a second end; 14. an accommodating space; 2. a force loading system; 21. a first connection portion; 22. a clamp assembly; 221. a first clamp; 2211. a first connection section; 2212. a first clamp part; 22121. a first guide groove; 22122. a first limit groove; 22123. a first accommodating groove; 222. a second clamp; 2221. a second connection section; 2222. a second clamp portion; 22221. a second guide groove; 22222. a second limit groove; 22223. a second accommodating groove; 223. a third clamp; 2232. a third clamp portion; 22321. a third guide groove; 22322. a third limiting groove; 22323. a third accommodating groove; 23. a second connecting portion; 24. a force loading assembly; 241. a connecting rod; 242. a weight tray; 243. a weight; 3. a temperature control system; 31. a temperature control chamber; 32. a temperature controller; 33. a temperature sensing member; 34. an infrared thermometer; 4. an alloy structural member; 41. a clamping portion; 42. and a testing part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following embodiments and accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
At present, static tests in a stress-free state are mostly adopted for alloy structural components, and the influence of external stress on the high-temperature oxidation performance of the alloy structural components is not considered. On one hand, the alloy structural component can crack and peel the protective oxide layer with poor surface ductility under the action of stress, so that the alloy matrix is directly exposed to a high-temperature environment for further oxidation. On the other hand, the alloy structural component can promote ion diffusion in the oxidation reaction process under the action of stress, and the oxidation rate of the material is improved. The alloy structural member will eventually fail at a coupled action of high temperature and stress. Therefore, the research on the influence of the stress on the oxidation of the alloy structural component in the high-temperature environment is particularly important, and the method can provide a basis for the design, the use and the life prediction of the alloy structural component.
The application provides an alloy structural member testing arrangement, includes: the supporting frame 1 comprises a fixed platform 11 and a supporting platform 12, wherein the fixed platform 11 is positioned above the supporting platform 12, and an accommodating space 14 is formed between the fixed platform 11 and the supporting platform 12; the force loading system 2 comprises a first connecting part 21, a clamp assembly 22, a second connecting part 23 and a force loading assembly 24 which are sequentially connected, wherein the clamp assembly 22 is used for clamping the alloy structural component 4; one end of the first connecting part 21 is connected with the fixed platform 11, the other end of the first connecting part is connected with the upper end of the clamp assembly 22, the lower end of the clamp assembly 22 is connected with the upper end of the second connecting part 23, and the lower end of the second connecting part 23 is connected with the force loading assembly 24; the temperature control system 3 comprises a temperature control chamber 31 and a temperature control controller 32 for controlling the temperature of the temperature control chamber 31; the temperature control chamber 31 is located in the accommodating space 14, the temperature control chamber 31 is disposed on the supporting platform 12, and the clamp assembly 22 is located in the temperature control chamber 31. When the force loading system 2 applies force to the alloy structural component 4, the temperature control system 3 can provide a high-temperature environment for the alloy structural component 4 at the same time, so that the alloy structural component 4 is tested in a stress and high-temperature composite environment, oxidation of an alloy structural component is researched in the stress and high-temperature composite environment, and a basis is provided for design, use and service life prediction of the alloy structural component.
Various non-limiting embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3, there is shown an alloy structural member testing apparatus in an embodiment of the present application, which includes, in the present embodiment: the supporting frame 1 comprises a fixed platform 11 and a supporting platform 12, wherein the fixed platform 11 is positioned above the supporting platform 12, and an accommodating space 14 is formed between the fixed platform 11 and the supporting platform 12; the force loading system 2 comprises a first connecting part 21, a clamp assembly 22, a second connecting part 23 and a force loading assembly 24 which are sequentially connected, wherein the clamp assembly 22 is used for clamping the alloy structural component 4; one end of the first connecting part 21 is connected with the fixed platform 11 and is fixed on the fixed platform 11 through a lock nut, the other end of the first connecting part is connected with the upper end of the clamp assembly 22, the lower end of the clamp assembly 22 is connected with the upper end of the second connecting part 23, and the lower end of the second connecting part 23 is connected with the force loading assembly 24; the temperature control system 3 comprises a temperature control chamber 31 and a temperature control controller 32 for controlling the temperature of the temperature control chamber 31; the temperature control chamber 31 is located in the accommodating space 14, the temperature control chamber 31 is disposed on the supporting platform 12, and the clamp assembly 22 is located in the temperature control chamber 31.
The alloy structural component described in this embodiment refers to a structural component made of an alloy, the shape is not limited, and the alloy structural component can be used as a part in industries such as aerospace, automobiles, petrochemical industry, nuclear power and the like. The support frame 1 is used for placing and/or fixing the force loading system 2 and the temperature control system 3, and has a space for operating the force loading system 2 and the temperature control system 3. The force loading system 2 is used to apply a force to the structural alloy component to place the structural alloy component in a stressed state. Specifically, the clamp assembly 22 clamps the alloy structural member 4, the force loaded by the force loading assembly 24 is applied to the clamp assembly 22, and then the force acts indirectly on the alloy structural member 4 through the clamp assembly 22. The fixing platform 11 is above the force loading system 2, the first connecting part 21, the clamp assembly 22, the second connecting part 23 and the force loading assembly 24 of the force loading system 2 are sequentially connected from top to bottom, when the clamp assembly 22 clamps the alloy structural component 4, the gravity of the force loading assembly 24 indirectly acts on the alloy structural component 4 through the clamp assembly 22, so that the alloy structural component 4 has stress. The temperature control system 3 provides a high temperature environment to the alloy structural member 4 to heat the alloy structural member 4. Specifically, the alloy structural member 4 is placed in the temperature controlled chamber 31, that is, the force application system 2 is fixed on the fixed platform 11, which is provided with the first connecting portion 21, the clamp assembly 22, the second connecting portion 23, and the force application assembly 24 from top to bottom, and the clamp assembly 22 is disposed in the temperature controlled chamber 31, so that the alloy structural member 4 clamped by the clamp assembly 22 is located in the temperature controlled chamber 31 so as to be heated. The first connecting portion 21 passes through the top of the temperature control chamber 31 to be connected to the fixed platform 11, and the second connecting portion 23 passes through the lower portion of the temperature control chamber 31 to hang down under the action of gravity, so that the gravity of the force loading assembly 24 connected to the second connecting portion 23 can act on the alloy structural member 4. The temperature controller 32 controls the temperature of the temperature controlled compartment 31. The temperature control chamber 31 may be a high temperature furnace, and heat generating components of the high temperature furnace are disposed in two sides of the high temperature furnace, and the heat generating components may be silicon carbide rods or silicon molybdenum rods.
In this embodiment, the clamp assembly 22 includes at least two clamps, and the alloy structural member 4 is disposed between two adjacent clamps. The two clamps respectively clamp one end of the alloy structural component 4, are positioned at the upper end and the lower end of the alloy structural component 4, and act on the lower end of the alloy structural component 4 to generate stress between the upper end and the lower end of the alloy structural component 4. In order to increase the number of the alloy structural components 4 to be tested and improve the testing efficiency, a plurality of alloy structural components 4 are tested in the same batch to reduce the discreteness and error rate of the testing result, more than three clamps are arranged, more than three clamps can clamp more than two alloy structural components 4, more testing results can be obtained in the same batch, more testing data are provided, and the error rate and discreteness of the testing caused by other uncontrollable reasons due to different batch testing can be avoided.
4-9, further, the clamp assembly 22 includes a first clamp 221 and a second clamp 222, and at least one third clamp 223 is disposed between the first clamp 221 and the second clamp 222; one end of the first clamp 221 is connected to the first connection portion 21, and the other end is connected to the alloy structural member 4; the second clamp 222 is connected to the alloy structural member 4 at one end and to the second connecting portion 23 at the other end. Specifically, the first clamp 221 and the second clamp 222 are respectively disposed at the upper end and the lower end of the clamp assembly 22, the upper end of the first clamp 221 is connected to the first connecting portion 21, the lower end of the first clamp holds the upper end of the alloy structural component 4, the lower end of the second clamp 222 is connected to the second connecting portion 23, the upper end of the second clamp holds the lower end of the alloy structural component 4, and the two ends of the third clamp 223 respectively hold the alloy structural component 4. The more the number of the third jigs 223 is, the more the alloy structural member 4 is clamped, the more the test data of the same batch can be increased, the test efficiency can be improved, and the test discreteness and the error rate can be reduced.
In this embodiment, the first clamp 221 includes a first connecting section 2211 and a first clamp portion 2212 connected, the first connecting section 2211 is connected to the first connecting portion 21, and the first clamp portion 2212 is connected to the alloy structural member 4; the first clamp portion 2212 is provided with a first guide groove 22121 and a stopper groove, and the first stopper groove 22122 is opened toward the first guide groove 22121 so that the first clamp portion 2212 has a hook shape; the second clamp 222 includes a second connecting section 2221 and a second clamp portion 2222 connected, the second connecting section 2221 is connected to the second connecting portion 23, and the second clamp portion 2222 is connected to the alloy structural member 4; the second clamp portion 2222 is provided with a second guide groove 22221 and a second stopper groove 22222, and the second stopper groove 22222 is opened toward the second guide groove 22221, so that the second clamp portion 2222 has a hook shape; the third jig 223 includes two third jig portions 2232, a third guide groove 22321 is formed between the two third jig portions 2232, and the third jig portion 2232 is provided with a third stopper groove 22322, and an opening of the third stopper groove 22322 faces the third guide groove 22321, so that the third jig portion 2232 has a hook shape.
The first clamp 221 and the second clamp 222 have the same shape and different positions, and the first clamp 221 and the second clamp 222 are symmetrically arranged. The first connecting section 2211 and the first connecting portion 21 are provided with circular pin holes, and the first connecting section 2211 and the first connecting portion 21 are connected by pins; similarly, the second connecting section 2221 and the second connecting portion 23 are both provided with circular pin holes, and the second connecting section 2221 and the second connecting portion 23 are connected by pins. The first clamp portion 2212 is connected to the alloy structural member 4; the first clamp portion 2212 is provided with a first guide groove 22121 and a first stopper groove 22122, and the opening of the first stopper groove 22122 faces the first guide groove 22121, so that the first clamp portion 2212 has a hook shape; the alloy structural member 4 has clamping portions 41 at both ends thereof, the shape of the clamping portions 41 is adapted to the shape formed by the first stopper groove 22122 and the first guide groove 22121, and the first clamp portion 2212 has a hook shape to clamp the alloy structural member 4. Likewise, the second clamp portion 2222 is connected to the alloy structural member 4; the second clamp portion 2222 is provided with a second guide groove 22221 and a second stopper groove 22222, and the second stopper groove 22222 is opened toward the second guide groove 22221, so that the second clamp portion 2222 has a hook shape; the shape of the clamping portion 41 is adapted to the shape formed by the second limiting groove 22222 and the second guiding groove 22221, and the second clamping portion 2222 is hook-shaped and can better clamp the alloy structural member 4. Similarly, the third jig 223 includes two third jig portions 2232, a third guide groove 22321 is formed between the two third jig portions 2232, and the third jig portion 2232 is provided with a third stopper groove 22322, and the third stopper groove 22322 is opened toward the third guide groove 22321, so that the third jig portion 2232 has a hook shape. The shape of the clamping portion 41 is adapted to the shape formed by the third limiting groove 22322 and the second guiding groove 22221, and the third clamping portion 2232 is hook-shaped and can better clamp the alloy structural member 4.
Further, the first clamp portion 2212 is provided with a first receiving groove 22123, and the first receiving groove 22123 is connected to the first limiting groove 22122 and is located in the middle of the first limiting groove 22122; the second clamping portion 2222 is provided with a second receiving groove 22223, and the second receiving groove 22223 is connected to the second limiting groove 22222 and is located in the middle of the second limiting groove 22222; the third clamping portion 2232 is provided with a third receiving groove 22323, and the third receiving groove 22323 is connected to the third limiting groove 22322 and is located in the middle of the third limiting groove 22322. Clamping parts 41 are arranged at two ends of the alloy structural component 4, and a testing part 42 is arranged between the two clamping parts 41. When the clamping portion 41 is limited in the first limiting groove 22122, the testing portion 42 is accommodated in the first accommodating groove 22123; similarly, when the clamping portion 41 is limited in the second limiting groove 22222, the testing portion 42 is received in the second receiving groove 22223; similarly, when the clamping portion 41 is limited in the third limiting groove 22322, the testing portion 42 is received in the third receiving groove 22323. The clamping of the alloy structural member 4 can be enhanced, so that the alloy structural member 4 is stabilized. The first receiving slot 22123, the second receiving slot 22223 and the third receiving slot 22323 may limit the movement of the alloy structural member 4 in the horizontal direction; the first, second and third restraint slots 22122, 22222 and 22322 can restrain the alloy structural member 4 from moving downward, so that the alloy structural member 4 has a downward force under the force applied by the force loading assembly 24.
In this embodiment, the temperature control chamber 31 is provided with at least two temperature sensing members 33, the temperature sensing members 33 are connected to the temperature control controller 32, and the temperature sensing members 33 are used for detecting the temperature of the alloy structural member 4. The temperature control chamber 31 heats the alloy structural member 4, but the actual temperature of the alloy structural member 4 cannot be known specifically, and for the accuracy of the test data, the temperature sensing member 33 is bound to the alloy structural member 4 through an asbestos cord, specifically, the temperature sensing member 33 can be bound to the alloy structural member 4 uniformly, for example, the temperature control chamber 31 is provided with three temperature sensing members 33, 6 alloy structural members 4 are arranged on the clamp assembly 22 from top to bottom, and then for the temperature monitoring of the alloy structural member 4, and the monitored temperature data is more accurate, the temperature sensing members 33 are bound to the first, third and fifth alloy structural members 4 which are arranged in sequence from top to bottom.
In this embodiment, the supporting frame 1 includes a plurality of supporting columns 13, the supporting columns 13 include a first end 131 and a second end 132, and the first end 131 is connected to the fixed platform 11; the supporting platform 12 is connected to the supporting column 13, and a preset distance is formed between the supporting platform 12 and the second end 132; the temperature controlled chamber 31 has a first opening and the support platform 12 has a second opening, the first opening corresponding in position to the second opening, and the force loading assembly 24 passes through the first and second openings to be positioned between the support platform 12 and the second end 132. The support 1 is designed such that the force loading assembly 24 can be suspended in space without interference from other objects, and the gravity of the force loading assembly 24 can be applied to the alloy structural member 4 completely.
In order to control the stress of the alloy structural member 4, in the present embodiment, the force loading assembly 24 includes a connecting rod 241, a weight tray 242, and a weight 243, one end of the connecting rod 241 is connected to the second connecting portion 23, the other end of the connecting rod is connected to the weight tray 242, and the weight 243 may be disposed on the weight tray 242. The weight 243 can be a weight 243 with different weights, and the weight 243 with different weights can be replaced or a plurality of weights 243 can be placed on the weight tray 242 according to the test requirements. With the force loading assembly 24 thus designed, the weight 243 can be easily accessed, and the force applied to the alloy structural member 4 can be easily controlled.
In this embodiment, the temperature control system 3 includes an infrared thermometer 34, the infrared thermometer 34 is connected to the temperature controller 32, the temperature control chamber 31 is provided with a perspective window, and the position of the perspective window corresponds to the position of the infrared thermometer 34. The infrared thermometer 34 can monitor the temperature of the temperature controlled chamber 31, so that the temperature controller 32 can adjust the temperature of the temperature controlled chamber 31. In order to allow the infrared rays of the infrared thermometer 34 to pass through, the temperature control chamber 31 is provided with a transparent window, and the transparent window is made of organic glass and is transparent, so that the light transmittance is high.
The alloy structural component testing method adopts the alloy structural component testing device according to the embodiment, and the testing device can provide a testing environment for the alloy structural component testing method. The alloy structural member testing method comprises the following steps:
s101: the alloy structural member is divided into a plurality of groups, and the plurality of groups of alloy structural members 4 are pretreated.
Specifically, the alloy structural members 4 are divided into 10 groups, i.e., a 1 st experimental group, a 2 nd experimental group, a 3 rd experimental group, a 4 th experimental group, a 5 th experimental group, a 6 th experimental group, a 7 th experimental group, an 8 th experimental group, a 9 th experimental group, and a 10 th experimental group, each group has two alloy structural members 4, and the 5 groups of alloy structural members 4 are pretreated.
S102: clamping each group of the alloy structural components 4 by using a clamp assembly 22, applying force to each group of the alloy structural components 4 by using a force applying assembly 24, and placing each group of the alloy structural components 4 in different temperature control chambers 31 respectively so as to heat each group of the alloy structural components 4.
Specifically, the alloy structural component 4 has three cross sections with different areas, and the force loading assembly 24 applies force to each group of alloy structural components 4 respectively, so that the stress of the three cross sections with different areas of the alloy structural component 4 is respectively 40Mpa, 60Mpa and 120 Mpa; the mass of the weight 243 is determined according to the designed stress, and may be calculated according to the formula: m = σ × s, where m is the mass of the weight 243, σ is the stress, and s is the cross-sectional area of the alloy structural member 4, the 1 st experimental group and the 6 th experimental group may be set as control groups, or the control group may not be set; the heating temperature of the 2 nd experiment group, the 3 rd experiment group, the 4 th experiment group and the 5 th experiment group is 1000 ℃; the heating temperature was 1050 ℃ in the 7 th, 8 th, 9 th and 10 th test groups.
S103: at different times, the application of force and heating to each set of said alloy structural parts 4 is stopped, respectively.
Specifically, after the 2 nd experiment group and the 7 th experiment group continue heating and applying force for 100 hours, force application and heating on the 2 nd experiment group and the 7 th experiment group are stopped; after the 3 rd experiment group and the 8 th experiment group continue heating and applying force for 200 hours, stopping applying force and heating to the 3 rd experiment group and the 8 th experiment group; after the 4 th experiment group and the 9 th experiment group continue heating and applying force for 300 hours, stopping applying force and heating to the 4 th experiment group and the 9 th experiment group; after the heating and the force application of the 5 th experiment group and the 10 th experiment group continued for 400 hours, the force application and the heating of the 5 th experiment group and the 10 th experiment group were stopped. If the control group is not provided, the 1 st test group may be set as a test group in which heating and application of force are stopped after heating at 1000 ℃ and application of force for 0 hour, and similarly, the 6 th test group may be set as a test group in which heating and application of force are stopped after heating at 1050 ℃ and application of force for 0 hour.
S104: the oxide layer thickness of each set of the alloy structural members 4 was obtained and recorded and compared.
Specifically, the cross section of the alloy structural member 4 of each group is cut, the thickness of the oxide layer on the cross section is measured, the thickness of the oxide layer is recorded, and the thickness of the oxide layer on the cross sections of different areas of the alloy structural member 4 of each group is compared, so that the influence of stress, temperature and time on the oxidation of the alloy structural member 4 in the static state is obtained. The graph shows the variation relationship among the thickness of the oxide layer, the temperature and the thickness of the oxide layer. It is known that: under the same conditions, the greater the stress of the alloy structural member 4, the greater the oxidation thickness thereof, and the faster the oxidation rate of the alloy structural member 4.
Referring to fig. 10, in the present embodiment, the pretreatment includes cutting and polishing the alloy structural member 4; cutting the alloy structural component 4, so that clamping parts 41 are arranged at two ends of the alloy structural component 4, a testing part 42 is arranged between the two clamping parts 41, and the testing part 42 has at least two cross sections with different areas; the alloy structural member 4 is polished so that the alloy structural member 4 has a smooth surface. The test portion 42 has at least two cross-sections of different areas, the stress being different for the different cross-sections. In the present embodiment, the alloy structural member 4 has three cross-sections of different areas. It will be appreciated that the cross-section of the alloy structural member 4 varies from the upper end to the lower end, the alloy structural member 4 is subjected to gravitational forces by the force loading assembly 24, the direction of the gravitational forces and the cross-section are perpendicular, and the force acting on a point in the cross-section per unit area is referred to as normal stress. The cross sections with different areas have different stress magnitudes. The single alloy structural component 4 can test the oxidation condition of the alloy structural component 4 under different stress conditions, so that reliable test data are increased, and the number of the alloy structural components 4 is saved.
Step S104: the obtaining of the oxide layer thickness of each set of the alloy structural components 4, and the recording and comparison include:
s1041: each set of the alloy structural members 4 is sealed with epoxy resin.
The epoxy resin seals the alloy structural member 4, and prevents the oxide layer on the surface of the alloy structural member 4 from peeling off to influence the experimental structure.
S1042: and cutting each group of the alloy structural component 4 to obtain a cut surface.
Specifically, the cut surface is perpendicular to the stress, i.e., the cross-section is perpendicular to the stress, and the stress at each point on the cut surface is the same.
S1043: the thickness of the oxide layer of each set of the alloy structural member 4 is obtained from the cut surface, and recording and comparison are performed.
And comparing the thickness of the oxide layer on the cutting surface of each group of alloy structural components 4 with different areas to obtain the oxidation influence of stress, temperature and time on the alloy structural components 4 in the static state.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application and not for limiting the same, and although the embodiments of the present application are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present application, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (12)
1. An alloy structural member testing apparatus, comprising:
the supporting frame (1) comprises a fixed platform (11) and a supporting platform (12), wherein the fixed platform (11) is positioned above the supporting platform (12), and an accommodating space (14) is formed between the fixed platform (11) and the supporting platform (12);
the force loading system (2) comprises a first connecting part (21), a clamp assembly (22), a second connecting part (23) and a force loading assembly (24) which are sequentially connected, wherein the clamp assembly (22) is used for clamping the alloy structural component (4); one end of the first connecting part (21) is connected with the fixed platform (11), the other end of the first connecting part is connected with the upper end of the clamp assembly (22), the lower end of the clamp assembly (22) is connected with the upper end of the second connecting part (23), and the lower end of the second connecting part (23) is connected with the force loading assembly (24); the temperature control system (3) comprises a temperature control chamber (31) and a temperature control controller (32) for controlling the temperature of the temperature control chamber (31); the temperature control chamber (31) is located in the accommodating space (14), the temperature control chamber (31) is arranged on the supporting platform (12), and the clamp assembly (22) is located in the temperature control chamber (31).
2. The alloy structural member testing device according to claim 1, wherein the jig assembly (22) includes at least two jigs, and the alloy structural member (4) is disposed between adjacent two of the jigs.
3. The alloy structural member testing device of claim 2, wherein the clamp assembly (22) comprises a first clamp (221) and a second clamp (222), at least one third clamp (223) being disposed between the first clamp (221) and the second clamp (222); one end of the first clamp (221) is connected with the first connecting part (21), and the other end of the first clamp is connected with the alloy structural component (4); one end of the second clamp (222) is connected with the alloy structural component (4), and the other end of the second clamp is connected with the second connecting part (23).
4. The alloy structural member testing device according to claim 3, wherein the first clamp (221) includes a first connecting section (2211) and a first clamp portion (2212) which are connected, the first connecting section (2211) and the first connecting portion (21) being connected, the first clamp portion (2212) being connected to the alloy structural member (4); the first clamp portion (2212) is provided with a first guide groove (22121) and a first stopper groove (22122), and the opening of the first stopper groove (22122) faces the first guide groove (22121), so that the first clamp portion (2212) is hook-shaped; the second clamp (222) comprises a second connecting section (2221) and a second clamp part (2222) which are connected, the second connecting section (2221) is connected with the second connecting part (23), and the second clamp part (2222) is connected with the alloy structural component (4); the second clamp part (2222) is provided with a second guide groove (22221) and a second limit groove (22222), and the opening of the second limit groove (22222) faces the second guide groove (22221), so that the second clamp part (2222) is hook-shaped; the third jig (223) includes two third jig portions (2232), a third guide groove (22321) is provided between the two third jig portions (2232), and the third jig portion (2232) is provided with a third stopper groove (22322), an opening of the third stopper groove (22322) faces the third guide groove (22321), so that the third jig portion (2232) is hook-shaped.
5. The alloy structural member testing device according to claim 4, wherein the first clamp portion (2212) is provided with a first receiving groove (22123), and the first receiving groove (22123) is connected to the first stopper groove (22122) and is located at the middle of the first stopper groove (22122); the second clamp part (2222) is provided with a second accommodating groove (22223), and the second accommodating groove (22223) is connected with the second limiting groove (22222) and is positioned in the middle of the second limiting groove (22222); the third clamp portion (2232) is provided with a third accommodating groove (22323), and the third accommodating groove (22323) is connected with the third limiting groove (22322) and is located in the middle of the third limiting groove (22322).
6. The alloy structural member testing device according to claim 1, wherein the temperature control chamber (31) is provided with at least two temperature sensing members (33), the temperature sensing members (33) are connected with the temperature control controller (32), and the temperature sensing members (33) are used for detecting the temperature of the alloy structural member (4).
7. Alloy structural member testing device according to claim 1, wherein said support frame (1) comprises a plurality of support columns (13), said support columns (13) comprising a first end (131) and a second end (132), said first end (131) being connected to said fixed platform (11); the supporting platform (12) is connected with the supporting column (13), and a preset distance is reserved between the supporting platform (12) and the second end (132); the temperature controlled chamber (31) is provided with a first opening, the support platform (12) is provided with a second opening, the position of the first opening corresponds to the position of the second opening, and the force loading assembly (24) penetrates through the first opening and the second opening to be positioned between the support platform (12) and the second end (132).
8. The alloy structural member testing device according to claim 1, wherein the force loading assembly (24) comprises a connecting rod (241), a weight tray (242), and a weight (243), wherein one end of the connecting rod (241) is connected to the second connecting portion (23), the other end of the connecting rod is connected to the weight tray (242), and the weight (243) is disposed on the weight tray (242).
9. Alloy structural component testing device according to claim 1, characterized in that the temperature control system (3) comprises an infrared thermometer (34), the infrared thermometer (34) being connected to the temperature control controller (32), the temperature control chamber (31) being provided with a see-through window, the position of which corresponds to the position of the infrared thermometer (34).
10. An alloy structural member testing method, characterized by using the alloy structural member testing apparatus according to any one of claims 1 to 9, the method comprising:
dividing the alloy structural components into a plurality of groups, and pretreating a plurality of combined gold structural components (4);
clamping each group of alloy structural components (4) by using a clamp assembly (22), applying force to each group of alloy structural components (4) by using a force loading assembly (24), and placing each group of alloy structural components (4) in different temperature control chambers (31) respectively so as to heat each group of alloy structural components (4);
stopping applying force and heating to each group of alloy structural components (4) at different times;
and acquiring the thickness of the oxide layer of each group of the alloy structural component (4), and recording and comparing.
11. The alloy structural member testing method according to claim 10, wherein the pretreatment includes cutting and polishing the alloy structural member (4); cutting the alloy structural component (4) to enable the two ends of the alloy structural component (4) to be provided with clamping parts (41), a testing part (42) is arranged between the two clamping parts (41), and the testing part (42) is provided with at least two cross sections with different areas; polishing the alloy structural member (4) to give the alloy structural member (4) a smooth surface.
12. The alloy structural member testing method according to claim 11, wherein said obtaining oxide layer thickness of each set of said alloy structural members (4), recording and comparing comprises:
sealing each set of said alloy structural parts (4) with epoxy resin;
cutting each group of alloy structural components (4) to obtain cut surfaces; and obtaining the thickness of the oxide layer of each group of the alloy structural component (4) according to the cutting surface, and recording and comparing.
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