|
|
|
| Effects of traditional heat treatment and a novel deep cryogenic treatment on microstructure and mechanical properties of low-carbon high-alloy martensitic bearing steel |
| Dong-hui Li1, Wen-chao He1, Xu Zhang1, Mao-guo Xiao1, Shao-hong Li1, Kun-yu Zhao1, Mao-sheng Yang2 |
| 1 School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; 2 Institute for Special Steels, Central Iron and Steel Research Institute, Beijing 100081, China |
|
|
|
|
Abstract The effects of traditional heat treatment (quenching and then tempering) and deep cryogenic treatment on the microstructure and mechanical properties of a low-carbon high-alloy martensitic bearing steel were studied by Rockwell hardness test, X-ray diffractometry, scanning electron microscopy and transmission electron microscopy. The results show that the deep cryogenic treatment promotes the transformation of the retained austenite to martensite during cooling, which leads to the hardness of the sample after deep cryogenic treatment higher than that at the quenched state. Also, the carbon content in the martensite matrix after different treatments was calculated and the results indicated that deep cryogenic treatment can promote the segregation of carbon atoms in martensite to dislocations. The segregated carbon atoms act as and grow into nuclei for the formation of fine carbide particles during subsequent tempering. And this resulted in the fact that the hardness of the tempered experimental steel after deep cryogenic treatment is higher than that without deep cryogenic treatment.
|
|
|
|
|
|
| Cite this article: |
|
Dong-hui Li,Wen-chao He,Xu Zhang, et al. Effects of traditional heat treatment and a novel deep cryogenic treatment on microstructure and mechanical properties of low-carbon high-alloy martensitic bearing steel[J]. Journal of Iron and Steel Research International, 2021, 28(03): 370-382.
|
|
|
|
| [1] |
Chen‑chong Wang, Chun‑guang Shen, Zhen Zhang, Wei Xu. Simulation and verification of core–shell MC carbide design in Fe–C–Ni–V–Ti steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2021, 28(1): 58-65. |
| [2] |
Guang‑di Zhao, Xi‑min Zang, Wen‑ru Sun. Role of carbon in modifying solidification and microstructure of a Ni?based superalloy with high Al and Ti contents[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2021, 28(1): 98-110. |
| [3] |
Xiang‑dong Huo, Kang He, Ji‑nian Xia, Lie‑jun Li, Song‑jun Chen. Isothermal transformation and precipitation behaviors of titanium microalloyed steels[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2021, 28(03): 335-345. |
| [4] |
Chang-sheng Li, Bin-zhou Li, Xin Jin, Yu Wang. Microstructure and mechanical properties in core of a carburizing 20CrNi2MoV bearing steel subjected to cryogenic treatment[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2021, 28(03): 360-369. |
| [5] |
You-hui Jiang, Shun Yao, Wei Liu, Yun Han, Su-peng Liu, Geng Tian, Ai-min Zhao. Influence of annealing temperatures on microstructure evolution and mechanical properties in a low-carbon steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(8): 981-991. |
| [6] |
Paul C. Okonkwo, Said Grami, Srinivasan Murugan, Shariq Khan. Effect of erosion on corrosion of API X120 steel in relation to erodent particle size[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(6): 691-701. |
|
|
|
|
2021, Vol. 28 
