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논문 기본 정보

자료유형
학술저널
저자정보
Olatunji Oladimeji Ojo (The Federal University of Technology)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.3
발행연도
2024.3
수록면
535 - 566 (32page)
DOI
10.1007/s12540-023-01528-1

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초록· 키워드

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Medium- and high-entropy alloys (MEAs/HEAs) or multi-principal element alloys are a new class of promising alloys withwide application possibilities in several industries like nuclear, offshore, liquefied natural gas, and transportation, amongothers. The development of these revolutionary alloys comes with the need to separately unravel their weldability as themicrostructure and the welding-induced thermal responses of the single, dual, and multi-phase HEAs differ. Detailed knowledgeof the weldability of MEAs/HEAs is still at the early stage and remains a useful link between the developed MEAs/HEAs and their full-scale industrial manufacturing applications. The intense heat input of fusion welding techniques easilyintroduces different or combined challenges such as elemental segregation, inhomogeneous phase transformation, solidificationcracking, and coarsened structure to the weld metals of HEAs. As a result, this paper provides a state-of-the-art review ofthe low heat-input or solid-state welding and friction stir processing of MEAs/HEAs. The welding section covers explosiveand friction stir welding processes of HEAs. Insights into the future research areas that can further progress the scientificunderstanding and weldability of MEAs/HEAs are briefly explicated in this paper.

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