Fatigue Failure Analysis and Microstructural Characterizations on Flash Butt Welded Joint of Automotive Steel Wheel Rim

被引：0
作者：
Xianyong He
Shuang Kuang
Guang Zhao
Qinglin Shan
Tong Chen
Tengfei Ma
Zheng Zhang
Long Guo
机构：
[1] HBIS Group Tangsteel Company,R&D Center
来源：
Journal of Materials Engineering and Performance | 2024年 / 33卷
关键词：
fatigue failure; flash butt weld; fractography; microstructure; steel wheel rim;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The quality of wheel rims has a strong impact to vehicle safety and reliability during steering. The objective of this work is to reveal the fatigue failure mechanism of the radial fatigue fracture in the flash butt welded joint of 590CL HSLA steel. Morphology and fractography were performed to analyze the microstructure and fatigue crack surface of the wheel rim. The results show that the fatigue crack is located near the region of rim-well radius where the thickness variation and stress level are relatively high. By means of microstructure comparative analysis of the flash butt welded joint on both failed rim and qualified rim, the cause of the fracture is mainly attributed to heat input of the flash butt welding process.
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页码：2146 / 2155
页数：9
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