Study on rolling wear and rolling contact fatigue behavior of pearlite/bainite rail steels at the low temperature of −35 <b>℃</b>

Wang Honghao; Ding Haohao; Wang Yuan; Chen Chongmu; Wang Wenjian; Zhou Zhongrong

doi:10.7513/j.issn.1004-7638.2024.01.025

Volume 45 Issue 1

Feb. 2024

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Wang Honghao, Ding Haohao, Wang Yuan, Chen Chongmu, Wang Wenjian, Zhou Zhongrong. Study on rolling wear and rolling contact fatigue behavior of pearlite/bainite rail steels at the low temperature of −35 ℃[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(1): 171-176. doi: 10.7513/j.issn.1004-7638.2024.01.025

Citation:

Wang Honghao, Ding Haohao, Wang Yuan, Chen Chongmu, Wang Wenjian, Zhou Zhongrong. Study on rolling wear and rolling contact fatigue behavior of pearlite/bainite rail steels at the low temperature of −35 ℃[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(1): 171-176. doi: 10.7513/j.issn.1004-7638.2024.01.025

Citation:

Wang Honghao, Ding Haohao, Wang Yuan, Chen Chongmu, Wang Wenjian, Zhou Zhongrong. Study on rolling wear and rolling contact fatigue behavior of pearlite/bainite rail steels at the low temperature of −35 ℃[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(1): 171-176. doi: 10.7513/j.issn.1004-7638.2024.01.025

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Study on rolling wear and rolling contact fatigue behavior of pearlite/bainite rail steels at the low temperature of −35 ℃

doi: 10.7513/j.issn.1004-7638.2024.01.025

1.
Tribology Research Institute, Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
2.
Panzhihua Iron and Steel Research Institute Co., Ltd., Pangang Group ,Panzhihua 617000, Sichuan, China

Received Date: 2022-11-16
Publish Date: 2024-02-29

Abstract

Abstract

The rail in the high altitude and high latitude regions faces the low temperature service environment. The rolling wear and damage behaviors under low temperature are the significant factors influencing the rail service safety. The wear and rolling contact fatigue (RCF) damage laws of pearlite rail steels (hypoeutectoid and eutectoid) and bainite rail steel were explored at the low temperature of −35℃ using wheel/rail rolling contact simulation experiments. The results showed that the hardening degree of bainite rail was lower at −35℃, and the wear degree was higher than those of pearlite rails. The wear degree of hypoeutectoid rail steel was lower than that of eutectoid rail steel. Different RCF damage levels occurred on the explored three kinds of rail steels. Cracks mainly propagated with small angles (< 10°). There was a competitive relationship between the wear and RCF. The RCF damage of hypoeutectoid rail steel with less wear was serious, followed by eutectoid rail, and the RCF damage of bainite rail steel with the most severe wear was the mildest.
- pearlite rail steel,
- bainite rail steel,
- low temperature environment,
- wear,
- RCF

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References(24)

References

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