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铁路钢轨脱碳表面的疲劳性能比较

Comparative Fatigue Performance of Decarburized Surfaces in Railway Rails.

作者信息

Muttamara Apiwat, Sommanat Jinnaphat, Kanchanomai Chaosuan, Viyanit Ekkarut

机构信息

Faculty of Engineering, Thammasat School of Engineering, Thammasat University, Khlong Luang, Pathum Thani 12120, Thailand.

National Science and Technology Development Agency, 114 Thailand Science Park, Paholyothin Road, Klong Luang, Pathum Thani 12120, Thailand.

出版信息

Materials (Basel). 2024 Jan 6;17(2):290. doi: 10.3390/ma17020290.

DOI:10.3390/ma17020290
PMID:38255458
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10817589/
Abstract

This study explores the comparative fatigue performance of decarburized surfaces in railway components, emphasizing rolling contact fatigue, crack propagation, and acoustic emission. The investigation entails the examination of two grades of railway steels, namely R260 and U71Mn, to analyze crack and surface characteristics subsequent to fatigue testing employing a Twin Roller Machine. The purpose is to discern the impact of decarburization on the fatigue life of these materials. The results reveal distinct patterns in crack propagation and acoustic emission between decarburized and non-decarburized surfaces, providing valuable insights into the fatigue behavior of railway components. This comparative analysis contributes to a nuanced understanding of the material's response to cyclic loading.

摘要

本研究探讨铁路部件脱碳表面的比较疲劳性能，重点关注滚动接触疲劳、裂纹扩展和声发射。该调查需要对两种等级的铁路钢，即R260和U71Mn进行检测，以便在使用双辊机进行疲劳试验后分析裂纹和表面特征。目的是识别脱碳对这些材料疲劳寿命的影响。结果揭示了脱碳表面和未脱碳表面在裂纹扩展和声发射方面的明显差异，为铁路部件的疲劳行为提供了有价值的见解。这种比较分析有助于对材料对循环载荷的响应有更细致入微的理解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30be/10817589/258e0784f71e/materials-17-00290-g015.jpg
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Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique.用磁巴克豪森噪声技术检测 60Si2Mn 钢棒的表面脱碳深度。
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