Nano- and Microhardness Distribution in the Carburized Case of Nb-Microalloyed Gear Steel

被引：5
|
作者：
Chen, W. [1 ,2 ]
He, X. F. [2 ]
Yu, W. C. [2 ]
Shi, J. [2 ]
Wang, M. Q. [2 ]
Yao, K. F. [1 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
[2] Cent Iron & Steel Res Inst, Inst Special Steel, Beijing 100081, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2020年 / 29卷 / 07期
关键词：
carburized case; gear steel; nano-hardness; retained austenite; Vickers hardness; RETAINED AUSTENITE; STABILITY; TRANSFORMATION; MARTENSITE; BEHAVIOR;
D O I：
10.1007/s11665-020-04992-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The characteristics of in-depth hardness distribution in the high-temperature carburized case of Nb-microalloyed gear steel before and after cryogenic treatment were studied by nano-indentation method and Vickers hardness method. The results showed that there was no significant difference in Vickers hardness of the carburized case before and after cryogenic treatment, while the nano-hardness of the carburized case was increased after cryogenic treatment. The change of nano-hardness could be related to the decrease in retained austenite content. The retained austenite content in the surface of the carburized case was 26%, which was reduced to 18% after cryogenic treatment at - 196 degrees C, with the nano-hardness increased from 11.8 to 12.6 GPa. Nano-indentation can be used to reliably measure the properties of the high-temperature carburized case with fine retained austenite for Nb-microalloyed gear steel.
引用
收藏
页码：4626 / 4630
页数：5
相关论文
共 39 条
  • [31] Effect of cryogenic treatment on distribution of residual stress in case carburized En 353 steel
    Bensely, A.
    Venkatesh, S.
    Lal, D. Mohan
    Nagarajan, G.
    Rajadurai, A.
    Junik, Krzysztof
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 479 (1-2): : 229 - 235
  • [32] Effect of microstructure on the impact toughness of Nb-microalloyed steel: Generalisation of existing relations from ferrite-pearlite to high strength microstructures
    Gutierrez, I.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 571 : 57 - 67
  • [33] Corrosion and abrasion behavior of high-temperature carburized 20MnCr5 gear steel with Nb and B microalloying
    He, Guoning
    Feng, Yijie
    Jiang, Bo
    Wu, Han
    Wang, Zhilin
    Zhao, Haidong
    Liu, Yazheng
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 25 : 5845 - 5854
  • [34] Effect of Case Depth and Hardness Distribution on the Rolling Contact Fatigue Performance of G20CrNi2MoA Carburized Steel
    Liu, Su
    Yang, Zhiyong
    Liu, Tao
    Li, Zhiqiang
    Cong, Tao
    STEEL RESEARCH INTERNATIONAL, 2024, 95 (06)
  • [35] Effect of Cr on the corrosion resistance of a V plus Nb-microalloyed medium-carbon Cr-Mo high-strength bolt steel
    Fang, Boyang
    Hui, Weijun
    Hua, Zhuo
    Xu, Yixuan
    Zhang, Yongjian
    Zhao, Xiaoli
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2025, 35 : 4756 - 4766
  • [36] Effects of Cooling Rate after Hot Forging on Precipitation of Fine Particles during Subsequent Normalizing and Austenite Grain Growth during Carburization of Al- and Nb-microalloyed Case-hardening Steel
    Saito, Genki
    Sakaguchi, Norihito
    Ohno, Munekazu
    Matsuura, Kiyotaka
    Takeuchi, Masayoshi
    Sano, Taichi
    Minoguchi, Koki
    Yamaoka, Takuya
    ISIJ INTERNATIONAL, 2021, 61 (06) : 1964 - 1970
  • [37] On the grain coarsening behavior of 20CrMnTi gear steel during pseudo carburizing: A comparison of Nb-Ti-Mo versus Ti-Mo microalloyed steel
    Tang, En
    Yuan, Qing
    Zhang, Rui
    Zhang, Zhicheng
    Mo, Jiaxuan
    Liang, Wen
    Xu, Guang
    MATERIALS CHARACTERIZATION, 2023, 203
  • [38] High Strength-High Ductility Combination Ultrafine-Grained Dual-Phase Steels Through Introduction of High Degree of Strain at Room Temperature Followed by Ultrarapid Heating During Continuous Annealing of a Nb-Microalloyed Steel
    Deng, Yonggang
    Di, Hongshuang
    Hu, Meiyuan
    Zhang, Jiecen
    Misra, R. D. K.
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2017, 26 (07) : 3007 - 3015
  • [39] A Novel Approach to Model Static Recrystallization of Austenite During Hot Rolling of Nb Microalloyed Steel. Part I: Precipitate-Free Case
    Rehman, Md. Kashif
    Zurob, Hatem S.
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2013, 44A (04): : 1862 - 1871
1234