Tungsten Argon Arc Welding Crack Analysis and Numerical Simulat ion for Residual Stress of Co-Based Superalloy

Authors

  • Zhongyao Li Chinese Academy of Sciences, Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Shenyang 110016, China
  • Li Feng
  • Jianjun Guan Shengyang Polytechnic College, Electrical Engineering, Shenyang 110045, China
  • Yan Zhao Liaoning Petrochemical University, School of Mechanical Engineering, Fushun 113001, China https://orcid.org/0009-0008-2658-5314
  • Yanhong Yang Chinese Academy of Sciences, Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Shenyang 110016, China
  • Jiaojiao Zhu Liaoning Petrochemical University, School of Mechanical Engineering, Fushun 113001, China

DOI:

https://doi.org/10.24425/amm.2025.153467

Abstract

The influence of welding current decay time on the repair of Co-based superalloy by tungsten argon arc welding spot welding are investigated by means of simulation and experiments. The results show that: the maximum tensile stress of residual stress after welding is distributed in the center area, gradually decreases towards the edge area, and mainly exists in the form of compressive stress in the edge area. On the same welding current, with the increase of attenuation time, the overall trend of temperature and stress distribution, and the stress value increases. The larger the fusion zone (FZ) crack area and the smaller intergranular cracks in the heat affected zone (HAZ) decrease. Currently, there is limited research on the influence of welding current decay time on the repair of Co-based superalloys via tungsten argon arc spot welding.

Published

2025-06-25

How to Cite

Li, Zhongyao, et al. “Tungsten Argon Arc Welding Crack Analysis and Numerical Simulat Ion for Residual Stress of Co-Based Superalloy”. Archives of Metallurgy and Materials, vol. 70, no. 2, June 2025, doi:10.24425/amm.2025.153467.

Issue

Vol. 70 No. 2 (2025)

Section

Articles