Influence of post-weld annealing process on fatigue life of cross joint

doi:10.13251/j.issn.0254-6051.2020.09.015

Abstract

Abstract: Consideration of welding residual stress in fatigue assessment criteria was summarized based on the analysis of fatigue assessment standards for welding structure,then it was clarified from the perspective of fatigue life calculation that the influence of residual stress requires no additional consideration.A batch of cross joint specimens were designed and anufactured,on which the fatigue test was carried out,and the fatigue test data were analyzed according to BS 7608:2014+Al:2015 standard.The result shows that there is no significant difference in fatigue life of as-welded cross joint specimens and that after different post-weld annealing process.

Key words: welding residual stress, post-weld heat treatment, annealing process, fatigue life, croSs joint

CLC Number:

TG405

Li Jitao, Zhao Wenzhong, Tian Changliang. Influence of post-weld annealing process on fatigue life of cross joint[J]. Heat Treatment of Metals, 2020, 45(9): 86-90.

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