Author:
Gao Zhenhuan,Xue Yunfei,Li Jinxu,Xu Lining,Qiao Lijie
Abstract
The resistance of the Al0.5Cr0.9FeNi2.5V0.2 high-entropy alloy (HEA) to hydrogen embrittlement (HE) was investigated by a slow strain rate test (SSRT), and the fracture surface was examined through a scanning electron microscope. Compared with other high-strength steels, Al0.5Cr0.9FeNi2.5V0.2 showed insignificant strength loss after hydrogen charging. The fracture surface of the hydrogen-charged specimens mainly consisted of dimples, and no intergranular morphology was observed. The coupling effect of the dispersed nano-structured precipitates and high-density dislocations in Al0.5Cr0.9FeNi2.5V0.2 improves the resistance to hydrogen-induced strength loss.
Funder
National Nature Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
General Materials Science,Metals and Alloys
Cited by
1 articles.
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