文章信息/Info

Title:

Innovative Design and Future Development of Chemically Complex Intermetallic Compounds

文章編號:

1674-3962(2025)01-0015-16

作者:

甘杰; 周子修; 肖博; 周英豪; 楊濤

1.香港城市大學材料科學與工程學院，香港 999077 2.香港城市大學機械工程學院，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

關鍵詞:

金屬間化合物; 晶體結構; 化學復雜性; 高熵合金; 材料設計; 成形工藝; 力學性能; 功能性能

Keywords:

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

分類號:

TG13

DOI:

10.7502/j.issn.1674-3962.202410008

摘要:

金屬間化合物因其原子的長程有序排列及原子間的強鍵合而具備介于金屬和陶瓷之間的獨特性質(zhì)，尤其是最近興起的化學復雜型金屬間化合物在結構和功能特性方面取得了顯著突破，并獲得了廣泛的關注。得益于有序超點陣結構與多種元素化學性質(zhì)的協(xié)同調(diào)節(jié)作用，這些化學復雜型金屬間化合物有望表現(xiàn)出超越傳統(tǒng)金屬間化合物的非凡性質(zhì)與性能。主要針對化學復雜型金屬間化合物的晶體結構、材料設計、成形工藝和各方面性能進行了總結，重點關注材料設計中涉及的元素占位偏好、亞點陣高熵效應和晶界納米無序等問題，并對當前這一新型金屬間化合物材料的先進制備工藝、結構和功能性能的最新進展進行了概述。最后，對化學復雜型金屬間化合物的未來發(fā)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.