Heat-affected zone microstructure and mechanical properties evolution for laser remanufacturing 35CrMoA axle steel

Xiangyi Feng; Shiyun Dong; Shixing Yan; Xiaoting Liu; Binshi Xu; Fusheng Pan

doi:10.1117/12.2317524

5 March 2018 Heat-affected zone microstructure and mechanical properties evolution for laser remanufacturing 35CrMoA axle steel

Xiangyi Feng, Shiyun Dong, Shixing Yan, Xiaoting Liu, Binshi Xu, Fusheng Pan

Author Affiliations +

Proceedings Volume 10710, Young Scientists Forum 2017; 107103P (2018) https://doi.org/10.1117/12.2317524
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

In this article, by using orthogonal test the technological test was conducted and the optimum processing of the remanufacturing35CrMoA axle were obtained. The evolution of microstructure and mechanical property of HAZ were investigated. The microstructure of HAZ was characterized by means of OM and SEM. Meanwhile hardness distribution in HAZ and tensile property of cladding-HAZ-substrate samples were measured. The microstructure of cladding and HAZ were observed. The microsturcture evoltion and the mechanism of harden in the HAZ was discussed and revealed. The results indicated that the remanufacturing part has excellent strength due to grain refining and dispersive distribution of nanoscale cementite. The remanufacturing part will have uniform microstructure and hardness matching with that of 35CrMoA axle by using stress-relieving annealing at 580℃.

Citation Download Citation

Xiangyi Feng, Shiyun Dong, Shixing Yan, Xiaoting Liu, Binshi Xu, and Fusheng Pan "Heat-affected zone microstructure and mechanical properties evolution for laser remanufacturing 35CrMoA axle steel", Proc. SPIE 10710, Young Scientists Forum 2017, 107103P (5 March 2018); https://doi.org/10.1117/12.2317524

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