Weldability of a high entropy CrMnFeCoNi alloy

SCRIPTA MATERIALIA

卷:124

Article

Wu, Z.¹  David, S. A.¹  Feng, Z.¹  Bei, H.¹ 

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

关键词: High entropy alloy;    Weldability;    Twinning;    Microstructure;   

DOI  :  10.1016/j.scriptamat.2016.06.046

来源: Elsevier

【 摘 要 】

High-entropy alloys are unique alloys in which five or more elements are presented all in high concentrations. To determine its potential as a structural alloy, a model face-centered-cubic CrMnFeCoNi alloy was selected to investigate its weldability. Welds produced by electron beam welding show no cracking. The grain structures within the fusion zone (FZ) are controlled by the solidification behavior of the weld pool. The weldment possesses mechanical properties comparable to those of the base metal (BM) at both room and cryogenic temperatures. Compared with the BM, deformation twinning was more pronounced in the FZ of the tested alloy. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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