Solid state welding of medium-entropy CrCoNi with heterogeneous, partially recrystallized microstructures

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:818

Article

Slone, C. E.^1,2  Barnett, B.²  Georgin, B.^1,2  Vivek, A.²  George, E. P.^3,4  Daehn, G. S.²  Mills, M. J.^1,2 

[1] Ohio State Univ, Ctr Electron Microscopy & Anal, Columbus, OH 43212 USA

[2] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA

[3] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[4] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

关键词: Medium-and high-entropy alloys;    Partially recrystallized microstructures;    Ultra-high strength;    Collision welding;    Solid state joining;   

DOI  :  10.1016/j.msea.2021.141425

来源: Elsevier

【 摘 要 】

Heterogeneous, partially recrystallized (PRX) microstructures have recently been used to improve strengthductility combinations in high-entropy alloys. However, these microstructures are incompatible with conventional joining processes that require melting or prolonged exposure to elevated temperatures. This work presents an initial exploration of solid state joining in this challenging condition using vaporizing foil actuator welding (VFAW) applied to PRX equiatomic alloy CrCoNi.

【 授权许可】

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