CN103776702A - Low-cycle fatigue testing device and method under corrosion and high-temperature environments - Google Patents
Low-cycle fatigue testing device and method under corrosion and high-temperature environments Download PDFInfo
- Publication number
- CN103776702A CN103776702A CN201410020154.7A CN201410020154A CN103776702A CN 103776702 A CN103776702 A CN 103776702A CN 201410020154 A CN201410020154 A CN 201410020154A CN 103776702 A CN103776702 A CN 103776702A
- Authority
- CN
- China
- Prior art keywords
- strain
- sample
- corrosion
- cycle fatigue
- connecting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a low-cycle fatigue testing device and method under corrosion and high-temperature environments. The low-cycle fatigue testing device comprises a strain measurement device, a heating system and a circulation cooling system, wherein the strain measurement device comprises an upper connecting plate, an upper strain induction column, a lower connecting plate, a lower strain induction column and an extensometer; the upper end of a specimen penetrates through the upper connecting plate and an upper cooling disc, and is fixedly connected with the upper cooling disc and the upper connecting plate; the lower end of the specimen penetrates through a corrosion pan, a heating furnace, a lower connecting plate and a lower cooling disc, and is fixedly connected with the lower connecting plate and a lower cooling disc; one end of the upper strain induction column is fixed on the upper connecting plate, and one end of the lower strain induction column is fixed on the lower connecting plate; the other end of the upper strain induction column is aligned to the other end of the lower strain induction column; the extensometer is respectively fixed on the upper strain induction column and the lower strain induction column by rubber bands. According to the low-cycle fatigue testing device and method disclosed by the invention, the difficulty that the extensometer cannot be used under the corrosion and low-temperature environments is overcome, and the device is simple, convenient and flexible to operate, is safe and reliable, is low in cost, and is high in measurement precision.
Description
Technical field:
The invention belongs to material properties test and material strain field of measuring technique, particularly the low cycle fatigue test device and method under a kind of corrosion and hot environment.
Background technology:
Low-cycle fatigue is the fatigue of material under high stress cycle effect, and its fatigue lifetime is shorter.The scope that low-cycle fatigue problem relates to is very extensive, as all seriously existed low-cycle fatigue problem in pressure vessels for the chemical industry, aeromotor, nuclear pressure vessel and pipeline, therefore the research of low-cycle fatigue is had a wide range of applications.Extensometer is the vitals of low cycle fatigue test machine, can the deflection of Control Assay in process of the test by extensometer, have the advantages that precision is high, reliability is high, highly sensitive.But because extensometer is precise part, under the severe corrosion of environment and hot conditions, its metal parts easily corrodes, distortion, thus affect transmission and the output of various types of signal, and damage.Therefore the low-cycle fatigue under corrosion and hot environment is relatively difficult to realize.
Summary of the invention:
The object of the present invention is to provide the low cycle fatigue test device and method under a kind of corrosion and hot environment, the difficult problem that cannot use under corrosion and hot environment to overcome extensometer, apparatus of the present invention convenient and flexible operation, safe and reliable, cost is low, measuring accuracy is high, has very high using value.
To achieve these goals, the present invention adopts following technical scheme:
A low cycle fatigue test device under corrosion and hot environment, comprising: strain gauge means, heating system and circulating cooling system; Strain gauge means comprises upper junction plate, upper strain induction post, lower connecting plate, lower strain induction post and extensometer; Upper junction plate and upper cooler pan are passed in the upper end of sample, and are fixedly connected with upper junction plate with upper cooler pan; Corrosion pot, heating furnace, lower connecting plate and lower cooler pan are passed in the lower end of sample, and are fixedly connected with lower cooler pan with lower connecting plate; One end of upper strain induction post is fixed on upper junction plate, and lower strain induction post one end is fixed on lower connecting plate, and the other end of the other end of upper strain induction post and lower strain induction post aligns; Extensometer is separately fixed on upper strain induction post and lower strain induction post by bungee; Corrosion pot is positioned at heating furnace; Heating system comprises corrosion pot and heating furnace; Circulating cooling system, the temperature of strain gauge means during for reducing heating.
The present invention further improves and is: upper cooler pan, upper junction plate, lower cooler pan and lower connecting plate be arranged in parallel, and corrosion pot and heating furnace are arranged between upper junction plate and lower connecting plate.
The present invention further improves and is: match with the external thread of sample upper end by two nuts in the upper end of sample, the upper end of sample, upper junction plate and upper cooler pan are fixedly connected with; Match with the external thread of sample lower end by two nuts in the lower end of sample, sample lower end, corrosion pot, heating furnace, lower connecting plate are fixedly connected with lower cooler pan.
The present invention further improves and is: heating furnace upper cover is set on heating furnace; On heating furnace, cover and be provided with the sample jack that passes for sample, for the thermocouple jack of thermopair is installed; Thermopair is installed in thermocouple jack.
The present invention further improves and is: between the bottom of corrosion pot and sample, be provided with O-ring seal; On heating furnace, cover and be also provided with wireway jack, in wireway jack, wireway is installed.
The present invention further improves and is: the power lead of heating furnace and thermopair are connected with PID controller, realizes the control to furnace temp.
The present invention further improves and is: in upper cooler pan, lower cooler pan, be connected with chilled water, upper cooler pan is connected with low pressure recycle water pump with the cocycle water pipe arranging on lower cooler pan and lower circulating water pipe, realizes the circulation of chilled water.
The present invention further improves and is: upper junction plate is provided with keeps supplying the first strain induction post jack that strain induction post passes, and lower connecting plate is provided with the second strain induction post jack passing for lower strain induction post; The first strain induction post jack and the second strain induction post jack have the adjusting space for regulating upper strain induction post and lower strain induction post horizontal level.
The present invention further improves and is: the spacing between upper strain induction post and lower strain induction post is 1～2mm.
A low cycle fatigue test method under corrosion and hot environment, comprises the following steps:
First, sample is carried out to low cycle fatigue test, measure the load that under different test initial strain conditions, sample bears;
Secondly,, after the low cycle fatigue test device under corrosion and hot environment is installed, measure the distance S between upper junction plate and lower connecting plate; Set up 1/4th axisymmetric models, use the strain of simulation softward simulation sample under different loads condition, then add up the strain of S/2 and L/2 place sample, determine the strain total far from S/2 place, center of sample two ends and the corresponding relation of testing initial strain; Finally, in process of the test, strain parameter control is used the corresponding sample of the test initial strain two ends of simulation gained far from the total strain value in S/2 place, center, when data processing, uses with sample two ends far from the corresponding test initial strain of the total strain in S/2 place, center; Wherein L is extensometer gage length.
The strain that the present invention measures is not the strain of tested sample center section; After the size of sample and the installation position of test unit are determined, by the strain of finite element analogy sample, then add up the strain of sample between the strain of sample between extensometer gage length and strain gauge means upper junction plate and lower connecting plate, the corresponding relation between determining; In the process of test, setting parameter is the strain between strain gauge means; While carrying out data processing afterwards, according to corresponding relation, the strain between strain gauge means is converted into the strain between extensometer gage length.
Test method of the present invention, first use the method for low cycle fatigue test, record the suffered maximum load of differently strained lower sample, then use the method for numerical simulation to record under differently strained condition apart from the strain value of sample under the certain distance of sample center, use the test parameters of this strain value as the low cycle fatigue test under corrosion and hot environment.
With respect to prior art, the present invention has following beneficial effect:
Experimental provision complete function of the present invention, can realize under corrosion environment, under hot environment, and the low cycle fatigue test under high-temperature corrosion environment.
Experimental provision of the present invention is simple in structure, easy for installation, and cost is low, and long service life, under high-temperature corrosion environment, is got rid of etchant gas by wireway, has avoided the corrosion of etchant gas to machine; By circulating cooling system by the temperature control of strain gauge means within the specific limits, can realize the low cycle fatigue test under higher temperature simultaneously.
Test method of the present invention is simple, by finite element analogy, and the accuracy that the present invention can warranty test result.
Accompanying drawing explanation
Fig. 1 is the system schematic that corrosion of the present invention and hot environment bend down all fatigue experimental devices.
Fig. 2 is the schematic diagram of the heating furnace upper cover of use while carrying out high temperature low-cycle fatigue test.
Fig. 3 is the schematic diagram of the heating furnace upper cover that uses while carrying out high temperature corrosion low cycle fatigue test.
Fig. 4 is upper lower connecting plate schematic diagram.
Fig. 5 is heating furnace and corrosion pot schematic diagram.
Calibration position (apart from sample center) schematic diagram when Fig. 6 is simulated calibration.
Fig. 7 is the low-cycle fatigue S-N curve map of material under high-temperature corrosion environment in embodiment 1.
Fig. 8 is the low-cycle fatigue S-N curve map of material under hot environment in embodiment 2.
Wherein, 1, upper cooler pan; 2, circulating water pipe; 3, thermopair; 4, nut; 5, sample; 6, upper junction plate; 7, heating furnace upper cover; 8, corrosion pot; 9, heating furnace; 10, nut; 11, upper strain induction post; 12, extensometer; 13, lower cooler pan; 14, circulating water pipe; 15, O-ring seal; 16, nut; 17, lower connecting plate; 18, power lead; 19, nut; 20, lower strain induction post; 21, thermocouple jack; 22, sample jack; 23, wireway; 24, wireway jack; 25, sample jack; 26, strain induction post jack; 27, sample jack; 28, heating furnace bottom.
Embodiment:
Refer to shown in Fig. 1 to Fig. 8, the low cycle fatigue test device under a kind of corrosion of the present invention and hot environment, comprising: strain gauge means, heating system and circulating cooling system.
Strain gauge means is by upper junction plate 6, and post 11 is responded in upper strain, lower connecting plate 17, and lower strain induction post 20 and extensometer 12 form; Sample 5, through upper cooler pan 1 and upper junction plate 6, is fixed together by nut 4 and being threaded above sample 5; Sample 5 passes lower cooler pan 13, lower connecting plate 17, and heating furnace 9, corrosion pot 8 and O-ring seal 15, be fixed together by nut 16 and being threaded above sample 5; Upper strain induction post 11 is through upper junction plate 6, fixing together by nut 10 and screw thread above thereof; Lower strain induction post 20 is through lower connecting plate 17, fixing together by nut 19 and screw thread above thereof; Extensometer 12 is separately fixed on upper strain induction post 11 and lower strain induction post 20 by bungee.
Heating system by corrode pot 8, heating furnace 9, thermopair 3, heating furnace upper cover 7 and power lead 18 form.
Circulating cooling system is by upper cooler pan 1, lower cooler pan 12, and circulating water pipe 2 and circulating water pipe 14 form.
Heating system is connected with PID controller by power lead 18 and thermopair 3, realizes the control to furnace temp.
Circulating cooling system, is connected with chilled water in upper cooler pan 1, lower cooler pan 13, is connected with low pressure recycle water pump by circulating water pipe 2 and circulating water pipe 14, realizes the circulation of chilled water, the temperature of strain gauge means while then reducing heating.
Strain sensor, the diameter of the strain induction post jack 26 of lower connecting plate 17 is greater than the diameter of lower strain induction post 20, is convenient to regulate the horizontal level of lower strain induction post 20, and strain induction post 11 and lower strain induction post 20 are alignd.
The strain that strain gauge means is measured is not the strain of tested sample center section; After the size of sample and the installation position of test unit are determined, by the strain of finite element analogy sample, then add up the strain of sample between the strain of sample between extensometer gage length and strain gauge means upper junction plate 6 and lower connecting plate 17, the corresponding relation between determining; In the process of test, setting parameter is the strain between strain gauge means; While carrying out data processing afterwards, according to corresponding relation, the strain between strain gauge means is converted into the strain between extensometer gage length.
Said heating system, in the time carrying out high temperature low-cycle fatigue test, is used heating furnace upper cover 7 as shown in Figure 2, and O-ring seal 15 is not installed; In the time carrying out high temperature corrosion low cycle fatigue test, use heating furnace upper cover 7 as shown in Figure 3, it is characterized in that on heating furnace upper cover 7, having opened a hole more, the corrosive gas in it is drawn by wireway 23, prevent from that corrosive gas from overflowing rear machine to be caused to corrosion.
Experimental provision of the present invention can make it be applicable to different temperature environments by changing heating system and circulating cooling system.
In the present invention, upper cooler pan 1, upper junction plate 6, upper strain induction post 11, lower cooler pan 13, lower connecting plate 1 and lower strain induction post 20 are 304 austenitic stainless steels.The shell of heating furnace upper cover 7 and heating furnace 9 is aluminium.Heating furnace bottom 28 is 304 austenitic stainless steels, uses cementing agent to be connected with the body of heater of heating furnace 9.O-ring seal 15 is " 0 " RunddichtringO.Circulating water pipe 2,14 and wireway 23 are plastic flexible pipe.Nut used in test unit is stainless steel.
The installation of the low cycle fatigue test device under a kind of corrosion of the present invention and hot environment: sample 5 is passed to lower cooler pan 13 successively, lower connecting plate 17, heating furnace 9, corrosion pot 8, if will fill corrosive liquid in corrosion pot 8, O-ring seal 15 is inserted in to sample 5, the bottom of a pan of adjacent corrosion pot 8, is used two nuts 16 by lower cooler pan 13, lower connecting plate 17, heating furnace 9, corrosion pot 8, O-ring seal 15 and sample 5 are fixed together.The top of sample 5 through sample jack 22, upper junction plate 6 and the upper cooler pan 1 at heating furnace upper cover 7 centers, is fixed together sample 5, upper junction plate 6 and upper cooler pan 1 by two nuts 4 successively.Thermopair 3 is inserted to the thermocouple jack 21 in heating furnace upper cover 7.If corrosion pot 8 in-built corrosive liquids, insert wireway 23 the wireway jack 24 in heating furnace upper cover 7.Upper strain induction post 11 is inserted to the strain induction post jack 26 of upper junction plate 6, use two nuts 10 that upper strain induction post 11 and upper junction plate 6 are fixed together, lower strain induction post 20 is inserted in the strain induction post jack 26 of lower connecting plate 17, use two nuts 19 that lower strain induction post 20 and lower connecting plate 17 are fixed together.Setting nut 10 and upper strain induction post 11, make the gap of strain induction post 11 and lower strain induction post 20 between 1～2mm, regulates the horizontal level of lower strain induction post 20, and lower strain induction post 20 is alignd with upper strain induction post 11.Use bungee that extensometer 12 is fixed on upper and lower strain induction post 11,20.
In order to guarantee the accuracy of the low cycle fatigue test under corrosion and hot environment, in the time using for the first time, should carry out strain demarcation.The experimental technique of the low cycle fatigue test device under a kind of corrosion of the present invention and hot environment, comprises the following steps:
First, carry out low cycle fatigue test, measure the load that under different test initial strain conditions, sample bears; Secondly, after the low cycle fatigue test device under corrosion and hot environment installs, the distance S in monitor strain measurement mechanism between upper junction plate 6 and lower connecting plate 17.Set up 1/4th axisymmetric models, use the strain of simulation softward Abaqus simulation sample under different loads condition, then S/2 and L(extensometer gage length as shown in Figure 6 of statistics) strain of/2 place's samples, determine the corresponding relation of the strain total far from S/2 place, center of sample two ends and test initial strain; Finally, in process of the test, strain parameter control is used the corresponding sample of the test initial strain two ends of simulation gained far from the total strain value in S/2 place, center, when data processing, uses with sample two ends far from the corresponding test initial strain of the total strain in S/2 place, center.
Embodiment 1:
The MgCl that this example is is 40% at 80 ℃ of massfractions
2in solution, carry out.Use heating furnace upper cover 7 as shown in Figure 3, the etchant gas of generation can be derived by wireway 23, avoid etchant gas to overflow machine is produced to corrosion.Test unit in this example can meet the low cycle fatigue test under room temperature to 300 ℃ condition.
In this example, after test unit installation, need to carry out strain demarcation.Distance S between upper junction plate 6 and lower connecting plate 17 is 110mm in this example, and upper lower connecting plate 6,17 is respectively 55mm apart from sample center.First, measure the suffered load value of sample under differently strained condition; Set up 1/4th axisymmetric models, use the strain of simulation softward simulation sample under different loads condition, then S/2 as shown in Figure 6 of statistics and the strain of L/2 place sample, this example requires the strain requirement of sample core as shown in table 1.
Table 1 is tested initial strain condition
Under statistics different loads condition, the strain value at sample S/2 place, is multiplied by 2 by the result of statistics, obtains sample two ends far from the total strain value in S/2 place, center.The test initial strain of final statistics and correspondence thereof is as shown in table 2.
Table 2 simulated strain and with test initial strain corresponding relation
In process of the test, strain parameter uses simulated strain, while carrying out data processing, according to the corresponding relation of table 2, simulated strain is converted into test initial strain.Final test findings as shown in Figure 7.By finding out in accompanying drawing 7 that test findings meets fatigue of materials rule, can reflect the MgCl that this material is 40% at 80 ℃ of massfractions
2low cycle fatigue property in solution.
This example is to carry out in 180 ℃ of air dielectrics, owing to there is no corrosive liquid, so corrosion pot bottom does not need sealing, O-ring seal 15 is not installed, and uses heating furnace upper cover 7 as shown in Figure 2, and test unit remainder is identical with embodiment 1.
Distance S in this example between upper junction plate 6 and lower connecting plate 17 is 110mm, and upper lower connecting plate 6,17 is respectively 55mm apart from sample center.Therefore use the analog result in embodiment 1 to test.Final test findings as shown in Figure 8.By finding out in accompanying drawing 8 that test findings meets fatigue of materials rule, can reflect the low cycle fatigue property of this material in 180 ℃ of air dielectrics.
Claims (10)
1. the low cycle fatigue test device under corrosion and hot environment, is characterized in that, comprising: strain gauge means, heating system and circulating cooling system;
Strain gauge means comprises upper junction plate (6), upper strain induction post (11), lower connecting plate (17), lower strain induction post (20) and extensometer (12); Upper junction plate (6) and upper cooler pan (1) are passed in the upper end of sample (5), and are fixedly connected with upper junction plate (6) with upper cooler pan (1); Corrosion pot (8), a heating furnace (9), lower connecting plate (17) and lower cooler pan (13) are passed in the lower end of sample (5), and are fixedly connected with lower cooler pan (13) with lower connecting plate (17); It is upper that one end of upper strain induction post (11) is fixed on upper junction plate (6), and it is upper that lower strain induction post (20) one end is fixed on lower connecting plate (17), and the other end of the other end of upper strain induction post (11) and lower strain induction post (20) aligns; Extensometer (12) is separately fixed on upper strain induction post (11) and lower strain induction post (20) by bungee; Corrosion pot (8) is positioned at heating furnace (9);
Heating system comprises corrosion pot (8) and heating furnace (9);
Circulating cooling system, the temperature of strain gauge means during for reducing heating.
2. the low cycle fatigue test device under a kind of corrosion according to claim 1 and hot environment, it is characterized in that, upper cooler pan (1), upper junction plate (6), lower cooler pan (13) and lower connecting plate (17) be arranged in parallel, and corrosion pot (8) and heating furnace (9) are arranged between upper junction plate (6) and lower connecting plate (17).
3. the low cycle fatigue test device under a kind of corrosion according to claim 1 and hot environment, it is characterized in that, match with the external thread of sample (5) upper end by two nuts in the upper end of sample (5), the upper end of sample (5), upper junction plate (6) and upper cooler pan (1) are fixedly connected with; Match with the external thread of sample (5) lower end by two nuts in the lower end of sample (5), sample (5) lower end, corrosion pot (8), heating furnace (9), lower connecting plate (17) are fixedly connected with lower cooler pan (13).
4. the low cycle fatigue test device under a kind of corrosion according to claim 1 and hot environment, is characterized in that, heating furnace upper cover (7) is set on heating furnace (9); Heating furnace upper cover (7) is provided with for the sample jack that passes of sample (5), for the thermocouple jack (21) of thermopair is installed; Thermopair (3) is installed in thermocouple jack (21).
5. the low cycle fatigue test device under a kind of corrosion according to claim 4 and hot environment, is characterized in that, between the bottom of corrosion pot (8) and sample (5), is provided with O-ring seal; On heating furnace upper cover (7), be also provided with wireway jack (24), wireway (23) is installed in wireway jack (24).
6. the low cycle fatigue test device under a kind of corrosion according to claim 4 and hot environment, is characterized in that, power lead (18) and the thermopair (3) of heating furnace (9) are connected with PID controller, realize the control to furnace temp.
7. the low cycle fatigue test device under a kind of corrosion according to claim 1 and hot environment, it is characterized in that, upper cooler pan (1), lower cooler pan are connected with chilled water in (13), upper cooler pan (1) is connected with low pressure recycle water pump with upper cocycle water pipe and the lower circulating water pipe arranging of lower cooler pan (13), realizes the circulation of chilled water.
8. the low cycle fatigue test device under a kind of corrosion according to claim 1 and hot environment, it is characterized in that, upper junction plate (6) is provided with keeps supplying the first strain induction post jack that strain induction post (11) passes, and lower connecting plate (17) is provided with the second strain induction post jack passing for lower strain induction post (20); The first strain induction post jack and the second strain induction post jack have the adjusting space for regulating upper strain induction post (11) and lower strain induction post (20) horizontal level.
9. the low cycle fatigue test device under a kind of corrosion according to claim 1 and hot environment, is characterized in that, the spacing between upper strain induction post (11) and lower strain induction post (20) is 1～2mm.
10. the low cycle fatigue test method under corrosion and hot environment, is characterized in that, comprises the following steps:
First, sample is carried out to low cycle fatigue test, measure the load that under different test initial strain conditions, sample bears;
Secondly,, after the low cycle fatigue test device under a kind of corrosion described in any one in claim 1 to 9 and hot environment is installed, measure the distance S between upper junction plate (6) and lower connecting plate (17); Carry out low cycle fatigue test, measure sample suffered load under different initial strain conditions; Set up 1/4th axisymmetric models, use the strain of simulation softward simulation sample under different loads condition, then add up the strain of S/2 and L/2 place sample, determine the strain total far from S/2 place, center of sample two ends and the corresponding relation of testing initial strain; Finally, in process of the test, strain parameter control is used the corresponding sample of the test initial strain two ends of simulation gained far from the total strain value in S/2 place, center, when data processing, uses with sample two ends far from the corresponding test initial strain of the total strain in S/2 place, center; Wherein L is extensometer gage length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020154.7A CN103776702B (en) | 2014-01-16 | 2014-01-16 | A kind of corrosion and hot environment under low cycle fatigue test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020154.7A CN103776702B (en) | 2014-01-16 | 2014-01-16 | A kind of corrosion and hot environment under low cycle fatigue test device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103776702A true CN103776702A (en) | 2014-05-07 |
| CN103776702B CN103776702B (en) | 2016-01-13 |
Family
ID=50569208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410020154.7A Expired - Fee Related CN103776702B (en) | 2014-01-16 | 2014-01-16 | A kind of corrosion and hot environment under low cycle fatigue test device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103776702B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891099A (en) * | 2016-06-16 | 2016-08-24 | 天津大学 | Experimental method and device for welding joint force-corrosion coupling test |
| CN106525567A (en) * | 2016-12-26 | 2017-03-22 | 大连理工大学 | Rock time-dependent deformation testing system under combined effect of continuous water environment and variable temperature |
| CN106769530A (en) * | 2017-01-24 | 2017-05-31 | 中广核研究院有限公司 | Repeated strain measurement apparatus and system suitable for high temperature fluent metal medium |
| CN108387457A (en) * | 2018-01-23 | 2018-08-10 | 安徽工业大学 | A kind of high/low temperature fatigue experimental device suitable for thin plate fatigue testing specimen |
| CN110044743A (en) * | 2019-04-12 | 2019-07-23 | 西北工业大学 | Nickel-based monocrystal small sample fatigue test system and method |
| CN111220462A (en) * | 2020-01-20 | 2020-06-02 | 中国特种设备检测研究院 | Creep testing system |
| CN112595575A (en) * | 2020-11-09 | 2021-04-02 | 南京工业大学 | Test device and method for testing various mechanical properties in high-temperature molten salt corrosion environment |
| CN112748007A (en) * | 2020-12-29 | 2021-05-04 | 长沙理工大学 | Corrosion-resistant fatigue performance testing device based on acoustic emission |
| CN113138207A (en) * | 2021-04-22 | 2021-07-20 | 安徽理工大学 | System and method for testing thermal diffusion coefficient of orthotropic solid material |
| CN113866007A (en) * | 2021-08-19 | 2021-12-31 | 中国原子能科学研究院 | Device suitable for high and low temperature radioactive plate-shaped fatigue test |
| US20220178801A1 (en) * | 2020-12-04 | 2022-06-09 | Bell Textron Inc. | Controlled environment composite testing system |
| CN116399715A (en) * | 2023-06-09 | 2023-07-07 | 天津航天瑞莱科技有限公司 | Aviation pipeline's hot strength test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03181838A (en) * | 1989-12-12 | 1991-08-07 | Kawasaki Steel Corp | Method for detecting generation of crack in strain controlled low cycle fatigue test in low temperature environment |
| CN101620043A (en) * | 2009-07-09 | 2010-01-06 | 华东理工大学 | Strain test device for tension-torsion multi-shaft fatigue test under corrosion environment |
| CN201653835U (en) * | 2010-04-09 | 2010-11-24 | 长春机械科学研究院有限公司 | Creep fatigue testing machine |
| CN203083889U (en) * | 2013-01-22 | 2013-07-24 | 中国石油大学(华东) | Corrosion fatigue three-point bending crack propagation testing device |
| CN203350139U (en) * | 2013-08-06 | 2013-12-18 | 四川大学 | High temperature rotating bending fatigue crack growth measurement device |
-
2014
- 2014-01-16 CN CN201410020154.7A patent/CN103776702B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03181838A (en) * | 1989-12-12 | 1991-08-07 | Kawasaki Steel Corp | Method for detecting generation of crack in strain controlled low cycle fatigue test in low temperature environment |
| CN101620043A (en) * | 2009-07-09 | 2010-01-06 | 华东理工大学 | Strain test device for tension-torsion multi-shaft fatigue test under corrosion environment |
| CN201653835U (en) * | 2010-04-09 | 2010-11-24 | 长春机械科学研究院有限公司 | Creep fatigue testing machine |
| CN203083889U (en) * | 2013-01-22 | 2013-07-24 | 中国石油大学(华东) | Corrosion fatigue three-point bending crack propagation testing device |
| CN203350139U (en) * | 2013-08-06 | 2013-12-18 | 四川大学 | High temperature rotating bending fatigue crack growth measurement device |
Non-Patent Citations (1)
| Title |
|---|
| 李丹柯 等: "锆合金薄片材料高温低周疲劳试验技术", 《试验技术与试验机》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891099A (en) * | 2016-06-16 | 2016-08-24 | 天津大学 | Experimental method and device for welding joint force-corrosion coupling test |
| CN105891099B (en) * | 2016-06-16 | 2018-08-31 | 天津大学 | Experimental method and device for welding joint force-corrosion coupling test |
| CN106525567A (en) * | 2016-12-26 | 2017-03-22 | 大连理工大学 | Rock time-dependent deformation testing system under combined effect of continuous water environment and variable temperature |
| CN106769530A (en) * | 2017-01-24 | 2017-05-31 | 中广核研究院有限公司 | Repeated strain measurement apparatus and system suitable for high temperature fluent metal medium |
| CN106769530B (en) * | 2017-01-24 | 2024-03-22 | 中广核研究院有限公司 | Fatigue strain measuring device and system suitable for high-temperature liquid metal medium |
| CN108387457A (en) * | 2018-01-23 | 2018-08-10 | 安徽工业大学 | A kind of high/low temperature fatigue experimental device suitable for thin plate fatigue testing specimen |
| CN110044743A (en) * | 2019-04-12 | 2019-07-23 | 西北工业大学 | Nickel-based monocrystal small sample fatigue test system and method |
| CN111220462A (en) * | 2020-01-20 | 2020-06-02 | 中国特种设备检测研究院 | Creep testing system |
| CN112595575A (en) * | 2020-11-09 | 2021-04-02 | 南京工业大学 | Test device and method for testing various mechanical properties in high-temperature molten salt corrosion environment |
| US20220178801A1 (en) * | 2020-12-04 | 2022-06-09 | Bell Textron Inc. | Controlled environment composite testing system |
| CN112748007B (en) * | 2020-12-29 | 2022-06-07 | 长沙理工大学 | Corrosion-resistant fatigue performance testing device based on acoustic emission |
| WO2022141873A1 (en) * | 2020-12-29 | 2022-07-07 | 长沙理工大学 | Acoustic emission-based apparatus for testing corrosion resistance fatigue performance |
| US11714035B2 (en) | 2020-12-29 | 2023-08-01 | Changsha University Of Science And Technology | Device for testing corrosion fatigue resistance on the basis of acoustic emission |
| CN112748007A (en) * | 2020-12-29 | 2021-05-04 | 长沙理工大学 | Corrosion-resistant fatigue performance testing device based on acoustic emission |
| CN113138207A (en) * | 2021-04-22 | 2021-07-20 | 安徽理工大学 | System and method for testing thermal diffusion coefficient of orthotropic solid material |
| CN113866007A (en) * | 2021-08-19 | 2021-12-31 | 中国原子能科学研究院 | Device suitable for high and low temperature radioactive plate-shaped fatigue test |
| CN116399715A (en) * | 2023-06-09 | 2023-07-07 | 天津航天瑞莱科技有限公司 | Aviation pipeline's hot strength test device |
| CN116399715B (en) * | 2023-06-09 | 2023-08-29 | 天津航天瑞莱科技有限公司 | Aviation pipeline's hot strength test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103776702B (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103776702B (en) | A kind of corrosion and hot environment under low cycle fatigue test device and method | |
| CN103926146B (en) | A kind of small sample constant load stress corrosion test device and method of testing thereof | |
| CN102998250B (en) | Experiment device for axial loading high-temperature stress corrosion test of metal material | |
| CN104568310B (en) | High-temp pressure sensor test device | |
| CN104515707A (en) | Temperature measurement method for electrified tensile test piece and tensile test device | |
| CN105737784B (en) | Displacement of testing machine deformation measuring device | |
| CN102749257B (en) | Hardness measurement method of steel steam pipeline and system thereof | |
| CN101520402A (en) | Experimental facility for testing electrochemical signals of various materials in high-temperature high-pressure environment | |
| CN104034599A (en) | Experiment system for testing super-high temperature fatigue S-N curve of engine material | |
| CN204924790U (en) | System for metal specimen meets an emergency among real -time supervision high temperature and high pressure environment | |
| CN104931373A (en) | Corrosion fatigue crack propagation testing device | |
| CN105092372A (en) | System and method for monitoring metal sample stress in high-temperature and high-pressure environment in real time | |
| CN110909505B (en) | Transient temperature field calculation method of nuclear power plant fatigue monitoring and life evaluation system | |
| CN109490061A (en) | The device and test method of environment fatigue experiment are carried out under a kind of waveform control condition | |
| CN203396654U (en) | Low-temperature tensile test system for twisted steel | |
| Jonas et al. | Effects of varying twist and twist rate sensitivities on the interpretation of torsion testing data | |
| CN111504800A (en) | Multifunctional micro-sample testing system and method, petrochemical industry and nuclear power equipment | |
| Khan et al. | Burst investigation on zircaloy-4 claddings in inert environment | |
| CN104749214A (en) | Transient plane source method-based constant-temperature heating bath device for measuring liquid thermal conductivity | |
| CN103219053B (en) | The adjustable test section apparatus of pipe leakage is simulated in nuclear power station pipeline leakage rate test | |
| CN102768085A (en) | Temperature sensor high-accuracy calibration device | |
| CN105954131B (en) | Measure the experimental rig and test method of high temperature and pressure lower straighttube road ratcheting | |
| Mohanty et al. | In-air and pressurized water reactor environment fatigue experiments of 316 stainless steel to study the effect of environment on cyclic hardening | |
| CN101806643B (en) | Method for debugging low-temperature sensor monitoring system matched with ship | |
| CN108918406A (en) | Drilling tool material corrosion simulation test device in a kind of well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20220116 |