Uncovering the weakening mechanism of electron beam welded joints of La2O3 dispersion strengthened molybdenum alloy: Experiment and simulation

Ge Zhang,Guoqing Chen,Hui Cao,Renchao Liu,Binggang Zhang,Xuesong Leng

Materials Letters（2023）

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摘要

•Weaking mechanism of electron beam weld Mo alloy was revealed.•Absence of La2O3 phase promoted the softening of the joint.•MoO2 phase and high residual stress resulted in weakening of the joint.

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关键词

Mo alloy,Crack,Welding,Microstructure,Simulation and modeling

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