摘要
高熵非晶合金是近年来发展起来的一种新型先进合金材料,它兼具了高熵合金和非晶合金良好的力学性能、磁学性能以及电化学性能等多方面综合特性,故而备受各领域众多学者的广泛关注。因为非晶合金不存在晶体结构缺陷与磁晶各向异性,所以具有更加优异的软磁性能。进一步地,将“高熵效应”的概念引入到非晶合金的研究中,使高熵非晶合金在很宽的温度区间内具有良好的制冷能力,因此常被视为一种潜在的磁制冷工质材料。金属材料作为生物医学材料使用时,普遍存在易腐蚀与使用寿命短等弊端。而高熵块体非晶合金具有生物相容性与耐腐蚀性能兼备的特点,在医用临床方面具有更广阔的应用前景。核能作为一种清洁能源,积极开发满足高温和强辐照条件下的高性能核结构材料势在必行。主要阐述高熵非晶合金的磁学性能、生物医用性能以及抗辐照性能等方面的最新研究成果。简要介绍高熵非晶合金的低温电输运特性、对偶氮染料废水的脱色降解以及提升污水处理效率等方面的作用。同时指出开发具有更多综合性能优异的高熵非晶合金将会成为新材料领域重要的发展趋势。
High-entropy metallic glasses(HE-MGs)were a novel advanced alloy material developed in recent years.It broke through the traditional alloy design concept that only 1 or 2 main kinds of metal elements were required.HE-MGs were developed by combining the design concepts of metallic glasses and high-entropy alloys.HE-MGs had simple micro-structure and uniform composition,which could eliminate the polarization between rich and poor elements and potential difference in different regions,reduce the probability of pitting corrosion and delay the corrosion rate.Compared with conventional alloys,composition and structure of HE-MGs were more uniform.The amorphous phase structure could further improve the macro strength and wear resistance.Because of the properties of highentropy alloys and metallic glasses,such as mechanical,magnetic and electrochemical properties and many other fine comprehensive features,HE-MGs became the hot spot in related research fields at present.With the accelerated development of a new round of global scientific and technological revolution and industrial reform,the leading role of new material industry in the national economy became increasingly prominent.Vigorous promotion of the industrialization of new materials not only had obtained stronger and broader development motivation and space,but also provided a key guarantee for the realization of manufacturing power and the development of national defense industry.In view of this,the functional properties of HE-MGs had been continuously developed and utilized.In particular,the functional properties of these advanced materials had been gradually developed and applied in recent years benefiting from steady advancement of national new types of materials industrialization.Compared to traditional crystalline materials,HE-MGs had relative higher effective permeability and lower coercive force due to no crystal structure defects and magnetocrystalline anisotropy,in addition,the concept of high-entropy metallic glasses was introduced.HE-MGs not only gener
作者
张舒研
高洋洋
张志彬
顾涛
梁秀兵
王立忠
Zhang Shuyan;Gao Yangyang;Zhang Zhibin;Gu Tao;Liang Xiubing;Wang Lizhong(Ocean College,Zhejiang University,Zhoushan 316021,China;Defense Innovation Institute,Academy of Military Sciences of the PLA of China,Beijing 100071,China;School of Materials and Engineering,North Uni-versity of China,Taiyuan 030051,China)
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2021年第6期717-727,共11页
Chinese Journal of Rare Metals
基金
国家重点研发计划项目(2018YFC1902400)
国家自然科学基金项目(51975582)
北京市自然科学基金项目(2212055)资助。
关键词
高熵非晶合金
磁学性能
生物医用性能
抗辐照性能
high-entropy metallic glasses
magnetic properties
biomedical properties
ion-irradiation performance
