摘要
钨材料作为一种重要的工业材料,以其高密度、高熔点和卓越的硬度及耐磨性能而闻名。晶体缺陷在钨材料的晶体结构中是常见的,调控钨材料中的缺陷是改善其性能的重要手段,深入理解钨材料中缺陷的形成与演化是实现其调控的理论基础。本文从烧结过程引入缺陷、应力效应引入缺陷2个关键方面,综述了钨材料缺陷的形成机制及其研究进展,对应地从制备、加工等角度来理解钨材料中的缺陷,并对相关领域近年来的研究进展进行了评述和展望,旨在为钨材料的研究提供参考。
Tungsten material is an industrially important material owing to its high density,high melting point,excellent hardness,and wear resistance.Crystal defects(e.g.,dislocations and vacancies)are common in its structure,thereby influencing the performance of tungsten materials.Therefore,controlling these defects is crucial for enhancing their performance.A deep understanding of how defects form and evolve serves as a theoretical basis for controlling them.This article reviews the mechanisms of defect formation and research advancements in tungsten materials from two key perspectives:defect introduction during the sintering process and through stress effects.Accordingly,this study explores defects in tungsten materials from the viewpoint of preparation and processing,summarizing recent advancements and prospects in related fields,aiming to provide a valuable reference for future research on tungsten materials.
作者
罗来马
魏国庆
刘祯
朱晓勇
吴玉程
LUO Laima;WEI Guoqing;LIU Zhen;ZHU Xiaoyong;WU Yucheng(School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China;Engineering Research Center for High-Performance Copper Alloys and Forming Processing of the Ministry of Education,School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China;National-Local Joint Engineering Research Centre of Nonferrous Metals and Processing Technology,School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China)
出处
《金属学报》
北大核心
2025年第4期526-540,共15页
Acta Metallurgica Sinica
基金
国家重点研发计划项目Nos.2019YFE03120002和2022YFE03140000
安徽省重大基础研究项目No.2023z04020006。
关键词
钨材料
缺陷
烧结
塑性变形
晶体缺陷
tungsten material
defect
sintering
plastic deformation
crystal defect
