Testing method realizing integration of hot-working simulation and performance test

A test method and thermal processing technology, applied in the preparation of test samples, measuring devices, strength characteristics, etc., can solve the problems that tensile samples and impact samples cannot be processed, and the mechanical properties of samples cannot be tested.

Active Publication Date: 2012-10-17
YANSHAN UNIV
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Problems solved by technology

The sample form used in the Gleeble-3500 simulated thermal processing process is usually Φ8×12mm, Φ10×15mm or Φ10×12mm. After the Gleeble-3500 thermal simulation, the sample form is only suitable for t

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  • Testing method realizing integration of hot-working simulation and performance test
  • Testing method realizing integration of hot-working simulation and performance test
  • Testing method realizing integration of hot-working simulation and performance test

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Embodiment Construction

[0022] The present invention realizes the integration method of thermal processing simulation and performance test. In the method, firstly, a simulated sample 2 is made for thermal processing simulation, and then the simulated sample 2 is processed into a standard impact sample and a micro-tensile sample 4 for performance testing. Specifically follow the steps below:

[0023] A. Make two simulation samples 2 of Φ10-15mm×75-85mm, and position the two ends of the simulation sample 2 in the working cavity of the Gleeble thermal simulation testing machine by means of the clamping fixture 1 with through holes. , and the end is limited by stainless steel fixture 10, and then the simulation test of thermal compression deformation is carried out according to the set parameters, and the structure analysis is carried out after cooling to room temperature.

[0024] The clamping jig 1 is formed by docking and combining symmetrical clamping plates with semicircular through holes on th...

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Abstract

The invention discloses a testing method realizing the integration of hot-working simulation and performance test. According to the invention, a lengthened and thickened simulation sample is used for simulating controlled rolling and controlled cooling processes; the simulation sample is processed along an axial direction, such that a standard impact sample used for an impact performance test is obtained; and the simulation sample is processed at an average temperature deformation zone along a radial direction into an I-shaped micro-tensile sample, and the sample is subjected to a normal-temperature tensile-performance test by using a matched micro-tensile fixture. Therefore, the integration of hot-working and performance test is realized. With the method provided by the invention, compared with the tensile test result of a standard sample, the data of the tensile test result of the method is relatively accurate, and the efficiency of the hot simulation test is greatly improved.

Description

technical field [0001] The invention belongs to the field of thermal simulation and performance testing of iron and steel materials, in particular to a test method capable of realizing the integration of thermal processing simulation and performance testing. Background technique [0002] The goal of controlled rolling and controlled cooling technology is to achieve grain refinement and fine grain strengthening, and to improve the structure and performance. To better achieve this goal, it is necessary to study the effects of various process parameters in the process of controlled rolling and controlled cooling on the microstructure and mechanical properties of steel. performance impact rules. The process of controlled rolling and controlled cooling in actual production has to go through the steps of billet heating-controlled rolling-controlled cooling-microstructure analysis-performance testing, etc. The cycle is long, and the controlled rolling process is affected by...

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Application Information

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IPC IPC(8): G01N3/00G01N1/44C21D8/00
Inventor 王玉辉刘利刚孔进丽王同良范磊王青峰
Owner YANSHAN UNIV
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