Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel

Zhaoxi Cao; Tianqi Liu; Feng Yu; Wenquan Cao; Xiaodan Zhang; Yuqing Weng

doi:10.1016/j.ijfatigue.2019.105351

Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel

Zhaoxi Cao, Tianqi Liu, Feng Yu, Wenquan Cao, Xiaodan Zhang^*, Yuqing Weng

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

For the first time, vacuum carburization surface treatment was applied to high carbon bearing steel 100Cr6. The rolling contact fatigue (RCF) life and the wear behavior of 100Cr6 with and without carburization were compared and the microstructure was characterized. The carburization results in 30 vol% cementite and ~20 vol% retained austenite in the surface layer, significantly higher than those processed by the conventional heat treatment. RCF life (L10) is significantly enhanced by more than 10 times from 1 × 10⁷ cycles to ≥1 × 10⁸ cycles by carburization. This enhancement is attributed to plate/rod cementite and retained austenite.

Original language	English
Article number	105351
Journal	International Journal of Fatigue
Volume	131
Number of pages	6
ISSN	0142-1123
DOIs	https://doi.org/10.1016/j.ijfatigue.2019.105351
Publication status	Published - 2020

Keywords

Vacuum carburization
High carbon bearing steel
Rolling contact fatigue
Coefficient of friction
Gradient distribution of carbides

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M4D: Metal Microstructures in Four Dimensions
Juul Jensen, D. (PI) & Hede, L. G. (Other)
01/10/2018 → 30/09/2023
Project: Research

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title = "Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel",

abstract = "For the first time, vacuum carburization surface treatment was applied to high carbon bearing steel 100Cr6. The rolling contact fatigue (RCF) life and the wear behavior of 100Cr6 with and without carburization were compared and the microstructure was characterized. The carburization results in 30 vol% cementite and ~20 vol% retained austenite in the surface layer, significantly higher than those processed by the conventional heat treatment. RCF life (L10) is significantly enhanced by more than 10 times from 1 × 107 cycles to ≥1 × 108 cycles by carburization. This enhancement is attributed to plate/rod cementite and retained austenite.",

keywords = "Vacuum carburization, High carbon bearing steel, Rolling contact fatigue, Coefficient of friction, Gradient distribution of carbides",

author = "Zhaoxi Cao and Tianqi Liu and Feng Yu and Wenquan Cao and Xiaodan Zhang and Yuqing Weng",

year = "2020",

doi = "10.1016/j.ijfatigue.2019.105351",

language = "English",

volume = "131",

journal = "International Journal of Fatigue",

issn = "0142-1123",

publisher = "Elsevier",

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T1 - Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel

AU - Cao, Zhaoxi

AU - Liu, Tianqi

AU - Yu, Feng

AU - Cao, Wenquan

AU - Zhang, Xiaodan

AU - Weng, Yuqing

PY - 2020

Y1 - 2020

N2 - For the first time, vacuum carburization surface treatment was applied to high carbon bearing steel 100Cr6. The rolling contact fatigue (RCF) life and the wear behavior of 100Cr6 with and without carburization were compared and the microstructure was characterized. The carburization results in 30 vol% cementite and ~20 vol% retained austenite in the surface layer, significantly higher than those processed by the conventional heat treatment. RCF life (L10) is significantly enhanced by more than 10 times from 1 × 107 cycles to ≥1 × 108 cycles by carburization. This enhancement is attributed to plate/rod cementite and retained austenite.

AB - For the first time, vacuum carburization surface treatment was applied to high carbon bearing steel 100Cr6. The rolling contact fatigue (RCF) life and the wear behavior of 100Cr6 with and without carburization were compared and the microstructure was characterized. The carburization results in 30 vol% cementite and ~20 vol% retained austenite in the surface layer, significantly higher than those processed by the conventional heat treatment. RCF life (L10) is significantly enhanced by more than 10 times from 1 × 107 cycles to ≥1 × 108 cycles by carburization. This enhancement is attributed to plate/rod cementite and retained austenite.

KW - Vacuum carburization

KW - High carbon bearing steel

KW - Rolling contact fatigue

KW - Coefficient of friction

KW - Gradient distribution of carbides

U2 - 10.1016/j.ijfatigue.2019.105351

DO - 10.1016/j.ijfatigue.2019.105351

M3 - Journal article

SN - 0142-1123

VL - 131

JO - International Journal of Fatigue

JF - International Journal of Fatigue

M1 - 105351

ER -

Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel

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