Effects of Quenching and Tempering Temperature on Microstructure and Mechanical Properties of GX160CrMoV12 Steel
[1]Qin Shibin,Yang Congli,Zhao Dali,et al.Effects of Quenching and Tempering Temperature on Microstructure and Mechanical Properties of GX160CrMoV12 Steel[J].Journal of Zhengzhou University (Engineering Science),2021,42(03):70-.[doi:10.13705/j.issn.1671-6833.2021.03.012]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
42卷
Number of periods:
2021 03
Page number:
70-
Column:
Public date:
2021-05-10
- Title:
- Effects of Quenching and Tempering Temperature on Microstructure and Mechanical Properties of GX160CrMoV12 Steel
- Keywords:
- GX160CrMoV12 steel; quenching; microstructure; tempering; mechanical properties
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2021.03.012
- Abstract:
- High carbon high chromium steel had high hardness, but there were network eutectic carbides in the steel, which made the steel easy to break when used. In order to improve the structure and mechanical properties of GX160CrMoV12 steel, OM, SEM observation, hardness test, impact toughness test and XRD test were used to study the effect of quenching and tempering temperature on the structure and mechanical properties of GX160CrMoV12 steel. The results showed that the structure of GX160CrMoV12 steel after quenching was martensite + residual austenite + carbide. As the quenching temperature increased, the eutectic carbide gradually dissolved, the size of martensite became larger, the content of residual austenite increased, and the hardness increased first and then decreased. The optimal quenching temperature was 1 040 ℃; the matrix of GX160CrMoV12-Ti-Ni-Y steel was tempered martensite after tempering. As the tempering temperature increased, the hardness decreased and the impact toughness increased. The optimal tempering temperature was 200 ℃.
- References:
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Last Update:
2021-06-24