化学复杂型金属间化合物的创新设计与未来发展-中国材料进展

文章信息/Info

Title:: Innovative Design and Future Development of Chemically Complex Intermetallic Compounds

作者:: 甘杰; 周子修; 肖博; 周英豪; 杨涛; 1.香港城市大学材料科学与工程学院，香港 999077 2.香港城市大学机械工程学院，香港 999077

Author(s):: GAN Jie; CHOU Tzuhsiu; XIAO Bo; ZHOU Yinghao; YANG Tao; 1. Department of Materials Science and Engineering, City University of HongKong, HongKong 999077, China 2. Department of Mechanical Engineering, City University of HongKong,HongKong 999077, China

Keywords:: intermetallic compounds; crystal structure; chemical complexity; high-entropy alloys; material design; manufacturing process; mechanical properties; functional properties

摘要:: 金属间化合物因其原子的长程有序排列及原子间的强键合而具备介于金属和陶瓷之间的独特性质，尤其是最近兴起的化学复杂型金属间化合物在结构和功能特性方面取得了显著突破，并获得了广泛的关注。得益于有序超点阵结构与多种元素化学性质的协同调节作用，这些化学复杂型金属间化合物有望表现出超越传统金属间化合物的非凡性质与性能。主要针对化学复杂型金属间化合物的晶体结构、材料设计、成形工艺和各方面性能进行了总结，重点关注材料设计中涉及的元素占位偏好、亚点阵高熵效应和晶界纳米无序等问题，并对当前这一新型金属间化合物材料的先进制备工艺、结构和功能性能的最新进展进行了概述。最后，对化学复杂型金属间化合物的未来发展方向作出了展望。

Abstract:: Intermetallic compounds possess unique properties between metals and ceramics due to their long-range ordered arrangement of atoms and strong interatomic bonding, especially, the recently emerged chemically complex intermetallic compounds have made remarkable breakthroughs in structural and functional properties and gained wide attention. These chemically complex intermetallic compounds have great potential to exhibit extraordinary properties and performance beyond conventional intermetallic compounds due to the synergistic modulation of the ordered superlattice structure and the chemical properties of multiple elements. This paper summarizes the crystal structure, material design, manufacturing process, and various aspects of properties of chemically complex intermetallic compounds, focusing on the elemental occupancy preference, sublattice high entropy effect, and grain boundary nanoscale disordering involved in the material design, and gives an overview of the recent advances in the advanced manufacturing process,structural and functional properties of this new type of intermetallic compound materials. Finally, the future development of chemically complex intermetallic compounds is envisioned.