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 journalJournal articleResearchpeer-review

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 languageEnglish
Article number105351
JournalInternational Journal of Fatigue
Volume131
Number of pages6
ISSN0142-1123
DOIs
Publication statusPublished - 2020

Keywords

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

Cite this

Cao, Zhaoxi ; Liu, Tianqi ; Yu, Feng ; Cao, Wenquan ; Zhang, Xiaodan ; Weng, Yuqing. / Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel. In: International Journal of Fatigue. 2020 ; Vol. 131.
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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.",
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",
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Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel. / Cao, Zhaoxi; Liu, Tianqi; Yu, Feng; Cao, Wenquan; Zhang, Xiaodan; Weng, Yuqing.

In: International Journal of Fatigue, Vol. 131, 105351, 2020.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

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

VL - 131

JO - International Journal of Fatigue

JF - International Journal of Fatigue

SN - 0142-1123

M1 - 105351

ER -