CN101105436A - Hot fatigue performance test and analysis method for steel - Google Patents
Hot fatigue performance test and analysis method for steel Download PDFInfo
- Publication number
- CN101105436A CN101105436A CNA2007100427651A CN200710042765A CN101105436A CN 101105436 A CN101105436 A CN 101105436A CN A2007100427651 A CNA2007100427651 A CN A2007100427651A CN 200710042765 A CN200710042765 A CN 200710042765A CN 101105436 A CN101105436 A CN 101105436A
- Authority
- CN
- China
- Prior art keywords
- specimen
- heat
- steel
- fatigue
- performance
- 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.)
- Pending
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a test and analysis method of the heat weary performance of steel, which belongs to the field of the performance and test analysis of metal material. The invention is characterized in that the quantitative research and analysis of the heat weary performance is realized. And the invention has following technological processes and steps: (1) the specimen is processed into a shape which has two side surfaces, one of the two surfaces is connected with temperature controlling equipment through a thermo-element, and the highest heating temperature of the specimen can be controlled. The two surfaces are both grinded into the state of polishing. (2) The specimen is put in the center of the induction coil of the heat weary performance testing machine, and then is cooled by circulation cooling water; the highest heating temperature is set, and the cooling time is set. After the heat weary performance testing, the specimen is processed with etch cleaning, and the oxide skin on the surface of the specimen is removed; cracks on the surface of the specimen is given a photo by zoom stereo microscope; the specimen is cut crosswise along the closest packed cracks, and then is grinded and polished and is again given a photo of the sectional plane. (3) The photo is input into the computer, and the cracks are quantitatively analyzed by heat weary performance cracking image analysis system.
Description
Technical field
The present invention relates to a kind of hot fatigue performance test and analytical approach of steel, belong to metal material performance test and analysis field.
Background technology
Heat fatigue is meant metal material under the cold cycling alternating action, and the surface can form the phenomenon of pattern cracking.Heat fatigue is the one of the main reasons that hot die steel lost efficacy.
Evaluation about the hot die steel thermal fatigue property mainly is a contrast Uddeholm heat fatigue evaluation criteria collection of illustrative plates at present.This evaluation mode is owing to be the artificial contrast of picture, so the result is coarse, and the people is that the error that causes is very big.In addition, though also there is the researchist to evaluate the quality of thermal fatigue property with the length of tired back crackle now, but the narrow limits that this method is considered do not consider the factor such as form, distribution situation of crackle, so the gained conclusion exists certain controversial.
The proving installation of present domestic heat fatigue mainly contains the electric furnace heater-type and retrains thermal fatigue tester certainly from restricted type thermal fatigue test apparatus and resistance furnace heating.The shortcoming of these two kinds of proving installations is that the speed of heating and cooling is slower, and is sample to be moved in the heat eliminating medium cool off.
Summary of the invention
The objective of the invention is to overcome some defectives in traditional hot fatigue property test and the analysis, a kind of hot fatigue performance test and analytical approach of steel are provided, simulate the heat fatigue condition of material in the actual production truly, and the crackle image is carried out systematic Quantitative study and analysis by computing machine.
To achieve the above object of the invention, design of the present invention is:
The hot fatigue performance test device that is adopted in the present invention (seeing accompanying drawing 1) is induction heating and the cooling of adopting of recirculated water spray, can in several seconds, be heated to temperature required, and can guarantee the homogeneity of temperature preferably, rapid then cool to room temperature, the invariant position of sample in the whole process, these characteristics have remedied the shortcoming when adopting the alternate manner heating and cooling, the situation when having simulated actual production truly.
In order to realize quantification evaluation to thermal fatigue property, calendar year 2001, people such as Materials Academy professor Wu Xiaochun of Shanghai University propose to use the heat fatigue damage factor first, subsequently, this factor has been carried out revision for several times, by the end of so far, though this evaluation criteria also has certain shortcoming, its notion is accepted by people.The present invention develops on the basis of this assessment method and has finished a cover heat fatigue cracking ias, carries out the Quantitative study and the analysis of fatigue crack by means of computer technology.
According to above-mentioned inventive concept, the present invention adopts following technical proposals:
A kind of hot fatigue performance test of steel and analytical approach is characterized in that having following technological process and step:
A. at first carry out the processing (seeing accompanying drawing 2) of sample, two side planes with sample are ground to the polishing attitude then, and one of them plane is connected to the maximum heating temperature of temperature controlling instruments with the control sample with thermopair;
B. sample is put in the inductive coil center in the thermal fatigue tester; Check cooling device;
C. heat-treat the setting of process controller: be set heat time heating time; The heating dead time is set; Be set cool time; The cooling dead time is set; The solid-state relay parameter is set simultaneously, with the control maximum heating temperature;
D. carry out thermal fatigue test;
E. after thermal fatigue test finishes, carry out pickling, to remove surface scale.Carry out taking pictures of surface crack with the continuous zoom stereomicroscope;
F. sample is laterally cut open along the crackle thick, the cross section is ground, polishing is carried out taking pictures of cross section crackle with the continuous zoom stereomicroscope;
G. with in the take a picture importing computing machine, carry out the quantitative analysis of crackle with heat fatigue cracking ias (system chart is seen accompanying drawing 3).
Above-mentioned temperature controlling instruments adopts solid-state relay and the simulation of heat treated range controller, controls the actual operating conditions of hot die steel generation heat fatigue.
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art:
(1) the present invention adopts solid-state relay and heat treated range controller, has adopted the cooling of induction heating mode Fast Heating and recirculated cooling water, has simulated the condition of work of material generation heat fatigue in the actual production truly.
(2) the present invention has adopted computer technology to carry out the system handles of crackle image, compare with traditional analytical approach, it has avoided the error of artificial evaluation, has taken all factors into consideration the factor of the each side such as distribution, form, the degree of depth of crackle simultaneously, makes the gained result more near actual.
Description of drawings
Fig. 1 is the thermal fatigue tester structural representation that the present invention adopts.
Fig. 2 is heat fatigue sample structure figure (picture in picture (a) is a front view, and figure (b) is a vertical view, and figure (c) is a left view, and figure (d) is an oblique view).
Fig. 3 is a heat fatigue cracking image analysis flow chart.
Fig. 4 is the surface crack photo figure of 1020 ℃ of quenchings of SDH2 steel.
Fig. 5 is the surface crack photo figure of 1020 ℃ of quenchings of 8407 steel.
Fig. 6 is the cross section crackle photo figure of 1020 ℃ of quenchings of SDH2 steel.
Fig. 7 is the cross section crackle photo figure of 1020 ℃ of quenchings of 8407 steel.
Embodiment
A preferred embodiment of the present invention is described in the back:
Adopted the hot die steel (SDH2 and ASSAB8407) of two kinds of heterogeneities to test in the present embodiment, the smelting condition of two groups of samples is the same, all quenches under 1020 ℃ of conditions subsequently, by tempering hardness is all adjusted to 48～49HRC.
The use step of the hot fatigue performance test of present embodiment and analytic system is as follows:
, at first before thermal fatigue test, sample is processed as requested, with surface grinding to polishing attitude (see figure 2).
2., carry out the thermal fatigue test (see figure 1).The maximum heating temperature that is set to of solid-state relay (XMT62X series intelligence is from the PID industry adjusting apparatus of adjusting) is 700 ℃, and be 7.5s the cool time that is set to of heat treated range controller.After the circulation 3000 times of colding and heat succeed each other, sample is taken out pickling, scale removal; Under the continuous zoom stereomicroscope to surface crack take pictures (seeing Fig. 4 and Fig. 5).
3, the heat fatigue sample is cut open along the cross section, ground, polishing, pair cross-section crackle take pictures (seeing Fig. 6 and Fig. 7) then.
4, the crackle photo is imported computing machine, carry out the quantitative analysis of crackle by means of heat fatigue cracking ias (see figure 3).
At last, through Computer Analysis, the fatigue damage factor that obtains SDH2 steel and 8407 steel is respectively 0.068608 and 0.115908, and this is better than 8407 steel with regard to the thermal fatigue property that the SDH2 steel is described.
Claims (2)
1. the hot fatigue performance test of a steel and analytical approach is characterized in that having following technological process and step:
A. sample is processed into shape, and one of them face is connected to the maximum heating temperature of temperature controlling instruments with the control sample with thermopair with two side planes; Two faces all are ground to the polishing attitude;
B. sample is positioned in the inductive coil of thermal fatigue tester and heats; Adopt recirculated cooling water to cool off;
C. carry out the setting of temperature controlling instruments: maximum heating temperature is set; The heating dead time is set; Be set cool time; The cooling dead time is set;
D. carry out thermal fatigue test;
E. after thermal fatigue test finishes, carry out pickling, to remove surface scale; Carry out taking pictures of surface crack with the continuous zoom stereomicroscope;
F. sample is laterally cut open along the crackle thick, polishing is carried out taking pictures of cross section crackle with the continuous zoom stereomicroscope;
G. with in the take a picture importing computing machine, carry out the quantitative analysis of crackle with the heat fatigue cracking ias.
2. the hot fatigue performance test of a kind of steel as claimed in claim 1 and analytical approach is characterized in that described temperature controlling instruments adopts solid-state relay and heat treated range controller to simulate, control the actual operating conditions of hot die steel generation heat fatigue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100427651A CN101105436A (en) | 2007-06-26 | 2007-06-26 | Hot fatigue performance test and analysis method for steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100427651A CN101105436A (en) | 2007-06-26 | 2007-06-26 | Hot fatigue performance test and analysis method for steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101105436A true CN101105436A (en) | 2008-01-16 |
Family
ID=38999433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100427651A Pending CN101105436A (en) | 2007-06-26 | 2007-06-26 | Hot fatigue performance test and analysis method for steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101105436A (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852701A (en) * | 2010-05-11 | 2010-10-06 | 东方锅炉（集团）股份有限公司 | Method for estimating long-term enduring performance of 9-12 Cr percent ferrite heat resistant steel |
| CN101413901B (en) * | 2008-12-01 | 2010-10-27 | 南京航空航天大学 | Surface fatigue crack detecting method based on CCD image characteristic |
| CN101894209A (en) * | 2010-06-21 | 2010-11-24 | 合肥通用机械研究院 | Method for determining equipment damage factor in environment with multiple failure mechanisms coexisting and application thereof |
| CN102116724A (en) * | 2011-01-11 | 2011-07-06 | 中国第一汽车集团公司 | Test method for thermal fatigue property of cast iron material |
| CN101788438B (en) * | 2010-01-27 | 2011-08-17 | 湖南大学 | Experimental method for measuring harden ability of large-sized aluminium alloy |
| CN102445401A (en) * | 2011-10-20 | 2012-05-09 | 新兴铸管股份有限公司 | Method for quickly testing alternating thermal stress resistance of metal |
| CN102621022A (en) * | 2012-03-22 | 2012-08-01 | 北京科技大学 | Thermal-force coupling fatigue test device and method |
| CN101694432B (en) * | 2009-10-21 | 2013-07-17 | 中国科学院力学研究所 | Method for evaluating reliability of thermal barrier coating system and device thereof |
| CN103267700A (en) * | 2013-05-10 | 2013-08-28 | 杭州电子科技大学 | Experimental device and method for detecting thermal fatigue of engine cylinder gasket |
| CN103543079A (en) * | 2013-10-29 | 2014-01-29 | 苏州市职业大学 | Alternation cooling thermal fatigue test bench |
| CN103926163A (en) * | 2014-04-10 | 2014-07-16 | 北京工业大学 | System and method for thermal fatigue test by induction heating and air cooling |
| CN104237043A (en) * | 2013-06-18 | 2014-12-24 | 山东科技大学 | Method for quantitatively measuring thermal fatigue performance of alloy and forecasting life span of alloy |
| CN104259105A (en) * | 2014-07-24 | 2015-01-07 | 肇庆爱晟电子科技有限公司 | Method for screening microcrack temperature-sensitive chips |
| CN104568570A (en) * | 2015-01-27 | 2015-04-29 | 大连理工大学 | Fatigue test machine for hot-working die material heat machine |
| CN104849281A (en) * | 2015-05-22 | 2015-08-19 | 厦门大学 | Method for detecting quantity and positions of cracks on surface of material |
| CN105043717A (en) * | 2015-09-06 | 2015-11-11 | 广州广电计量检测股份有限公司 | Automobile rearview mirror defrosting and demisting performance detection system and detection method thereof |
| CN105107951A (en) * | 2015-09-09 | 2015-12-02 | 天津那诺机械制造有限公司 | Aluminum alloy wheel spinning die |
| CN105571973A (en) * | 2014-10-15 | 2016-05-11 | 中国科学院金属研究所 | Constant stress loaded thermal fatigue experimental device and method |
| CN106053272A (en) * | 2016-08-16 | 2016-10-26 | 苏州东菱振动试验仪器有限公司 | Broadband fatigue testing machine |
| CN106769577A (en) * | 2016-11-29 | 2017-05-31 | 河南科技大学 | A kind of hot-work die frictional wear test device |
| CN107560961A (en) * | 2016-06-30 | 2018-01-09 | 威达国际工业有限合伙公司 | The thermodynamics test of shearing tool |
| CN107655932A (en) * | 2017-09-07 | 2018-02-02 | 中国石油大学(华东) | For studying the experimental provision of low temperature induction thermal stress fracturing and studying the experimental method of low temperature induction thermal stress fracturing using it |
| CN108195706A (en) * | 2017-12-25 | 2018-06-22 | 北京航空航天大学 | A kind of thermal fatigue test system of ceramic matrix composite material structure part |
| CN109283085A (en) * | 2018-11-26 | 2019-01-29 | 燕山大学 | A kind of coating material thermal shock resistance properties test experience device and its experiment auxiliary device |
| CN110554162A (en) * | 2019-09-03 | 2019-12-10 | 安阳豫德机械有限公司 | Simple and rapid on-site hot-rolled steel defect detection method |
-
2007
- 2007-06-26 CN CNA2007100427651A patent/CN101105436A/en active Pending
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413901B (en) * | 2008-12-01 | 2010-10-27 | 南京航空航天大学 | Surface fatigue crack detecting method based on CCD image characteristic |
| CN101694432B (en) * | 2009-10-21 | 2013-07-17 | 中国科学院力学研究所 | Method for evaluating reliability of thermal barrier coating system and device thereof |
| CN101788438B (en) * | 2010-01-27 | 2011-08-17 | 湖南大学 | Experimental method for measuring harden ability of large-sized aluminium alloy |
| CN101852701A (en) * | 2010-05-11 | 2010-10-06 | 东方锅炉（集团）股份有限公司 | Method for estimating long-term enduring performance of 9-12 Cr percent ferrite heat resistant steel |
| CN101852701B (en) * | 2010-05-11 | 2011-11-02 | 东方电气集团东方锅炉股份有限公司 | Method for estimating long-term enduring performance of 9-12 Cr percent ferrite heat resistant steel |
| CN101894209A (en) * | 2010-06-21 | 2010-11-24 | 合肥通用机械研究院 | Method for determining equipment damage factor in environment with multiple failure mechanisms coexisting and application thereof |
| CN101894209B (en) * | 2010-06-21 | 2015-07-01 | 合肥通用机械研究院 | Method for determining equipment damage factor in environment with multiple failure mechanisms coexisting and application thereof |
| CN102116724A (en) * | 2011-01-11 | 2011-07-06 | 中国第一汽车集团公司 | Test method for thermal fatigue property of cast iron material |
| CN102445401A (en) * | 2011-10-20 | 2012-05-09 | 新兴铸管股份有限公司 | Method for quickly testing alternating thermal stress resistance of metal |
| CN102621022A (en) * | 2012-03-22 | 2012-08-01 | 北京科技大学 | Thermal-force coupling fatigue test device and method |
| CN103267700B (en) * | 2013-05-10 | 2015-01-14 | 杭州电子科技大学 | Experimental device and method for detecting thermal fatigue of engine cylinder gasket |
| CN103267700A (en) * | 2013-05-10 | 2013-08-28 | 杭州电子科技大学 | Experimental device and method for detecting thermal fatigue of engine cylinder gasket |
| CN104237043A (en) * | 2013-06-18 | 2014-12-24 | 山东科技大学 | Method for quantitatively measuring thermal fatigue performance of alloy and forecasting life span of alloy |
| CN103543079A (en) * | 2013-10-29 | 2014-01-29 | 苏州市职业大学 | Alternation cooling thermal fatigue test bench |
| CN103926163A (en) * | 2014-04-10 | 2014-07-16 | 北京工业大学 | System and method for thermal fatigue test by induction heating and air cooling |
| CN104259105A (en) * | 2014-07-24 | 2015-01-07 | 肇庆爱晟电子科技有限公司 | Method for screening microcrack temperature-sensitive chips |
| CN105571973A (en) * | 2014-10-15 | 2016-05-11 | 中国科学院金属研究所 | Constant stress loaded thermal fatigue experimental device and method |
| CN104568570B (en) * | 2015-01-27 | 2017-04-12 | 大连理工大学 | Fatigue test machine for hot-working die material heat machine |
| CN104568570A (en) * | 2015-01-27 | 2015-04-29 | 大连理工大学 | Fatigue test machine for hot-working die material heat machine |
| CN104849281A (en) * | 2015-05-22 | 2015-08-19 | 厦门大学 | Method for detecting quantity and positions of cracks on surface of material |
| CN104849281B (en) * | 2015-05-22 | 2017-05-31 | 厦门大学 | A kind of material surface crack number and method for detecting position |
| CN105043717A (en) * | 2015-09-06 | 2015-11-11 | 广州广电计量检测股份有限公司 | Automobile rearview mirror defrosting and demisting performance detection system and detection method thereof |
| CN105107951A (en) * | 2015-09-09 | 2015-12-02 | 天津那诺机械制造有限公司 | Aluminum alloy wheel spinning die |
| CN107560961A (en) * | 2016-06-30 | 2018-01-09 | 威达国际工业有限合伙公司 | The thermodynamics test of shearing tool |
| CN106053272A (en) * | 2016-08-16 | 2016-10-26 | 苏州东菱振动试验仪器有限公司 | Broadband fatigue testing machine |
| CN106769577A (en) * | 2016-11-29 | 2017-05-31 | 河南科技大学 | A kind of hot-work die frictional wear test device |
| CN107655932A (en) * | 2017-09-07 | 2018-02-02 | 中国石油大学(华东) | For studying the experimental provision of low temperature induction thermal stress fracturing and studying the experimental method of low temperature induction thermal stress fracturing using it |
| CN108195706A (en) * | 2017-12-25 | 2018-06-22 | 北京航空航天大学 | A kind of thermal fatigue test system of ceramic matrix composite material structure part |
| CN109283085A (en) * | 2018-11-26 | 2019-01-29 | 燕山大学 | A kind of coating material thermal shock resistance properties test experience device and its experiment auxiliary device |
| CN110554162A (en) * | 2019-09-03 | 2019-12-10 | 安阳豫德机械有限公司 | Simple and rapid on-site hot-rolled steel defect detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101105436A (en) | Hot fatigue performance test and analysis method for steel | |
| CN101788438B (en) | Experimental method for measuring harden ability of large-sized aluminium alloy | |
| CN101556267B (en) | Method for simulating ferritic stainless steel hot-rolling sticking experiment and device thereof | |
| CN103472092A (en) | Partial least squares regression-based modeling method of infrared nondestructive testing electromagnetic excitation mathematical model | |
| CN204924996U (en) | Hot fatigue testing machine of roll | |
| Saelzer et al. | Systematic in-depth study on material constitutive parameter identification for numerical cutting simulation on 16MnCr5 comparing temperature-coupled and uncoupled Split Hopkinson pressure bars | |
| Negodin et al. | Testing of the technology of radial-shear rolling and predesigning selection of rolling minimills for the adaptable production of titanium rods with small cross sections under the conditions of the “CHMP” JSC | |
| Barglik et al. | Experimental stand for investigation of induction hardening of steel elements | |
| CN108421825A (en) | The method for preparing Steel-aluminium composite board using electromagnetic induction heating rolling mill practice | |
| Pourmoghaddam et al. | Determination of the engine power for quenching of glass by forced convection: simplified model and experimental validation of residual stress levels | |
| CN102854137A (en) | In-situ metallurgical structure analytical method | |
| Herbst et al. | Holistic consideration of grain growth behavior of tempering steel 34CrNiMo6 during heating processes | |
| Stöcker et al. | Influence of cubic texture intensity of hot rolled ferritic non-oriented electrical steels on the microstructure and texture in the final processed material | |
| CN106769596B (en) | A kind of roll laser thermal shock test method | |
| CN104237480A (en) | Test method for obtaining center porosity press-fit critical conditions | |
| Qiu et al. | Reduction of Residual Stress for High‐Strength Low‐Alloy Steel Strip Based on Finite Element Analysis | |
| Cai et al. | Rolling of AZ31 magnesium alloy strip using induction heating rolls | |
| Milenin et al. | Model of curvature of crankshaft blank during the heat treatment after forging | |
| CN206747976U (en) | Slide plate process equipment | |
| CN110954571A (en) | Experimental method for rapidly improving hardness of titanium alloy at normal temperature | |
| Walmag et al. | Development of new materials based on on-site and laboratory evaluation methods for understanding work roll surface degradation | |
| CN106591546A (en) | Rapid inspection method for bearing steel spheroidizing annealing material carbon scarcity and decarburization | |
| CN220474564U (en) | Cooling device for ion beam section grinding | |
| Ganapathy et al. | Test-piece and test-rig designs to obtain high accuracy experimental data for boron steel at hot stamping conditions | |
| Wang et al. | Influence of Residual Stress on Shape of Heavy-gauge, High-strength Steel Caused by Cooling Process after Hot Rolling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080116 |