Modeling the competitive relationship between wear and rolling contact fatigue of railway wheel steel

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2024-10-29 DOI:10.1016/j.wear.2024.205615

Kelian Luo , Xiaolong Liu , Yan Yang , Tao Cong , Fenbo Zhang , Wenjing Wang

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引用次数: 0

Abstract

Wear and spalling caused by rolling contact fatigue (RCF) are common failure modes on the tread of railway wheels. The competitive relationship between wear and RCF in heavy-haul railway freight wheel steel was investigated. Wear and RCF tests under dry friction and oil lubrication conditions were conducted on the wheel steel with three different hardness of A# (329 HB), B# (341 HB), and C# (355 HB). The outer surface and cross-section of the specimens were observed using a scanning electron microscope and an optical microscope. The results indicate that the failure type of wear dominates the competitive relationship between wear and RCF in the wear tests, and the failure type of RCF dominates the competitive relationship between wear and RCF in the RCF tests. A significant plastic deformation layer was observed on the cross-section of specimens in the wear tests, while noticeable spalling cracks were found on the cross-section of specimens in the RCF tests. The higher the hardness, the deeper the crack propagation. Based on the Archard wear model and a RCF model, a model and a competition coefficient T_C were proposed to describe the competition between wear and RCF. when

T_{C} ≪ 1

, wear dominates corresponding to the wear tests. when

T_{C} ≫ 1

, RCF dominates corresponding to the RCF tests. Wear and RCF are in a relative balanced state when

T_{C} \approx 1

查看原文本刊更多论文

铁路车轮钢磨损与滚动接触疲劳竞争关系建模

由滚动接触疲劳（RCF）引起的磨损和剥落是铁路车轮胎面常见的失效模式。本文研究了重载铁路货运车轮钢磨损和 RCF 之间的竞争关系。对 A# (329 HB)、B# (341 HB) 和 C# (355 HB) 三种不同硬度的车轮钢进行了干摩擦和油润滑条件下的磨损和 RCF 试验。使用扫描电子显微镜和光学显微镜观察了试样的外表面和横截面。结果表明，在磨损试验中，磨损的失效类型主导磨损与 RCF 之间的竞争关系；在 RCF 试验中，RCF 的失效类型主导磨损与 RCF 之间的竞争关系。在磨损试验中，试样横截面上出现了明显的塑性变形层，而在 RCF 试验中，试样横截面上出现了明显的剥落裂纹。硬度越高，裂纹扩展越深。根据 Archard 磨损模型和 RCF 模型，提出了描述磨损和 RCF 之间竞争的模型和竞争系数 TC。当 TC≈1 时，磨损和 RCF 处于相对平衡的状态。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.