Property tuning and additive manufacturing of refractory high-entropy alloys
The refractory high-entropy alloys (RHEAs) usually form a multi-principal elements alloy with equal atomic ratio or near equal atomic ratio <i>via</i> adding a variety of high melting point elements, showing simple phase composition and excellent high temperature properties, and processi...
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doaj-acb3278318e0451690412b1cffb2b9cf2021-08-18T02:42:13ZzhoJournal of Materials EngineeringJournal of Materials Engineering1001-43811001-43812020-10-01481011610.11868/j.issn.1001-4381.2020.00028120201001Property tuning and additive manufacturing of refractory high-entropy alloysSUN Bo0XIA Ming1ZHANG Zhi-bin2LIANG Xiu-bing3SHEN Bao-long4School of Materials Science and Engineering, Southeast University, Nanjing 211189, ChinaNational Innovation Institute of Defense Technology, Academy of Military Science PLA China, Beijing 100071, ChinaNational Innovation Institute of Defense Technology, Academy of Military Science PLA China, Beijing 100071, ChinaNational Innovation Institute of Defense Technology, Academy of Military Science PLA China, Beijing 100071, ChinaSchool of Materials Science and Engineering, Southeast University, Nanjing 211189, ChinaThe refractory high-entropy alloys (RHEAs) usually form a multi-principal elements alloy with equal atomic ratio or near equal atomic ratio <i>via</i> adding a variety of high melting point elements, showing simple phase composition and excellent high temperature properties, and processing a broad application prospect in the field of superalloy. Based on the performance characteristics and preparation process of RHEAs, and from the perspective of the current situation and challenges in fabrication and forming, the property tuning methods and its research progress of RHEAs were summarized, as well as the achieved breakthrough and the facing dilemma of the additive manufactured RHEAs. A prospection on the composition design and optimization, material preparation and processing, and additive manufactured forming of RHEAs was also proposed.The following suggestions are put forward for the key research trend of RHEAs in the future: tuning phase composition and phases interface to overcome the strength-ductility trade-off of RHEAs, designing alloys by combining the mature traditional strengthening and toughening theory with the properties of RHEAs, modifying the formability and properties of RHEAs by drawing support from the processing characteristics of additive manufacturing technology, and investigating the servicing performance and failure mechanism in high temperature or multi-field coupling condition of RHEAs.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000281refractory high-entropy alloyproperty tuningadditive manufacturing |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
SUN Bo XIA Ming ZHANG Zhi-bin LIANG Xiu-bing SHEN Bao-long |
spellingShingle |
SUN Bo XIA Ming ZHANG Zhi-bin LIANG Xiu-bing SHEN Bao-long Property tuning and additive manufacturing of refractory high-entropy alloys Journal of Materials Engineering refractory high-entropy alloy property tuning additive manufacturing |
author_facet |
SUN Bo XIA Ming ZHANG Zhi-bin LIANG Xiu-bing SHEN Bao-long |
author_sort |
SUN Bo |
title |
Property tuning and additive manufacturing of refractory high-entropy alloys |
title_short |
Property tuning and additive manufacturing of refractory high-entropy alloys |
title_full |
Property tuning and additive manufacturing of refractory high-entropy alloys |
title_fullStr |
Property tuning and additive manufacturing of refractory high-entropy alloys |
title_full_unstemmed |
Property tuning and additive manufacturing of refractory high-entropy alloys |
title_sort |
property tuning and additive manufacturing of refractory high-entropy alloys |
publisher |
Journal of Materials Engineering |
series |
Journal of Materials Engineering |
issn |
1001-4381 1001-4381 |
publishDate |
2020-10-01 |
description |
The refractory high-entropy alloys (RHEAs) usually form a multi-principal elements alloy with equal atomic ratio or near equal atomic ratio <i>via</i> adding a variety of high melting point elements, showing simple phase composition and excellent high temperature properties, and processing a broad application prospect in the field of superalloy. Based on the performance characteristics and preparation process of RHEAs, and from the perspective of the current situation and challenges in fabrication and forming, the property tuning methods and its research progress of RHEAs were summarized, as well as the achieved breakthrough and the facing dilemma of the additive manufactured RHEAs. A prospection on the composition design and optimization, material preparation and processing, and additive manufactured forming of RHEAs was also proposed.The following suggestions are put forward for the key research trend of RHEAs in the future: tuning phase composition and phases interface to overcome the strength-ductility trade-off of RHEAs, designing alloys by combining the mature traditional strengthening and toughening theory with the properties of RHEAs, modifying the formability and properties of RHEAs by drawing support from the processing characteristics of additive manufacturing technology, and investigating the servicing performance and failure mechanism in high temperature or multi-field coupling condition of RHEAs. |
topic |
refractory high-entropy alloy property tuning additive manufacturing |
url |
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000281 |
work_keys_str_mv |
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