A comprehensive review on the deformation behavior of refractory high entropy alloys at elevated temperatures

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Review Pub Date : 2023-01-01 DOI:10.1051/mfreview/2023008

O. S. Bamisaye, N. Maledi, J. W. van der Merwe, D. Klenam, M. Bodunrin, A. Akinwekomi

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引用次数: 0

Abstract

Thermo-mechanical processing of refractory high entropy alloys (RHEAs) at high temperatures is very important. It is an effective method of modifying the microstructure, properties, and shaping into final components after casting. Using the Scopus database, 57 articles relating to the hot deformation of refractory high entropy alloys were extracted from 2011 to 2022. Despite the limited number of articles on hot deformation of RHEAs, it is important to find out if the dominant softening mechanisms reported in other metallic alloys are evident. This is the main impetus for this study since the hot deformation behavior has not been comprehensively studied. All the probable mechanisms influencing deformation in metallic alloys, such as work hardening, dynamic recrystallization, and dynamic recovery, have also been observed in RHEAs. The bulging phenomenon, serrated grain boundaries, and necklace-like structures reported in metallic alloys have also been detected in hot deformed RHEAs. Unsafe deformation behavior such as cracks that have been reported in metallic alloys, have also been observed in RHEAs. This review has provided a comprehensive study on the hot working processes of RHEAs and highlighted critical gaps for future research direction with some suggested limitations.

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高温下难熔高熵合金变形行为研究综述

高温下难熔高熵合金(RHEAs)的热机械加工是非常重要的。它是一种有效的方法来改变组织，性能，并形成铸造后的最终部件。利用Scopus数据库，从2011年到2022年提取了57篇与难熔高熵合金热变形相关的文章。尽管关于RHEAs热变形的文章数量有限，但重要的是要找出在其他金属合金中报道的主要软化机制是否明显。这是本研究的主要动力，因为热变形行为还没有得到全面的研究。影响金属合金变形的所有可能机制，如加工硬化、动态再结晶和动态恢复，也在RHEAs中被观察到。在热变形RHEAs中也发现了金属合金中的胀形现象、锯齿状晶界和项链状结构。不安全的变形行为，如在金属合金中已报道的裂纹，也已观察到在流变合金中。本文综述了RHEAs的热加工过程，并指出了未来研究方向的关键空白和局限性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Manufacturing Review ENGINEERING, MANUFACTURING-

CiteScore

5.40

自引率

12.00%

发文量

审稿时长

8 weeks

期刊介绍： The aim of the journal is to stimulate and record an international forum for disseminating knowledge on the advances, developments and applications of manufacturing engineering, technology and applied sciences with a focus on critical reviews of developments in manufacturing and emerging trends in this field. The journal intends to establish a specific focus on reviews of developments of key core topics and on the emerging technologies concerning manufacturing engineering, technology and applied sciences, the aim of which is to provide readers with rapid and easy access to definitive and authoritative knowledge and research-backed opinions on future developments. The scope includes, but is not limited to critical reviews and outstanding original research papers on the advances, developments and applications of: Materials for advanced manufacturing (Metals, Polymers, Glass, Ceramics, Composites, Nano-materials, etc.) and recycling, Material processing methods and technology (Machining, Forming/Shaping, Casting, Powder Metallurgy, Laser technology, Joining, etc.), Additive/rapid manufacturing methods and technology, Tooling and surface-engineering technology (fabrication, coating, heat treatment, etc.), Micro-manufacturing methods and technology, Nano-manufacturing methods and technology, Advanced metrology, instrumentation, quality assurance, testing and inspection, Mechatronics for manufacturing automation, Manufacturing machinery and manufacturing systems, Process chain integration and manufacturing platforms, Sustainable manufacturing and Life-cycle analysis, Industry case studies involving applications of the state-of-the-art manufacturing methods, technology and systems. Content will include invited reviews, original research articles, and invited special topic contributions.