Abstract：The block peeling from the flange of rear wheel occurred when the subway wheel was used for a period of time. In order to find out the cause, some methods including chemical composition inspection, mechanical analysis, macroscopic observation of fracture and metallographic structure analysis were employed. The results showed that the block peeling from the flange of wheel was the typical characteristic of peeling caused by multisource high stress fatigue fracture. High hardness white layer martensite and the composite structure with depth up to 7 mm were the main reasons for block peeling from the flange. The composite structure on deep surface should be caused by the unreasonable quenching process. It was suggested to develop the reasonable quenching process for the flange of wheel to avoid formation of defect structures.
汪瑞俊. 车轮轮缘块状剥落原因分析[J]. 物理测试, 2023, 41(3): 21-27.
WANG Ruijun. Cause analysis on block peeling from flange of wheel. PHYSICS EXAMINATION AND TESTING, 2023, 41(3): 21-27.
2023, Vol. 41 
