冲击载荷下金属材料的微结构-加载特性-层裂响应关系概述  

Effects of Microstructure and Loading Characteristics on Spallation of Metallic Materials under Shock Loading

作　　者：蔡洋 李超 卢磊 CAI Yang;LI Chao;LU Lei(The Peac Institute of Multiscale Sciences,Chengdu 610027,Sichuan,China;School of Materials Science and Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan,China)

机构地区：[1]顶峰多尺度科学研究所,四川成都610027 [2]西南交通大学材料科学与工程学院,四川成都610031

出　　处：《高压物理学报》2021年第4期73-86,共14页Chinese Journal of High Pressure Physics

基　　金：科学挑战计划(TZ2018001)。

摘　　要：鉴于冲击载荷下金属材料的变形损伤具有微结构和加载特征的依赖性,对国内外有关层裂现象的研究进展进行了简要梳理与总结。概述了晶粒尺寸、织构、晶界类型、相界和元素偏析带等结构对金属材料变形损伤的影响,重点阐述了脉冲宽度、应变率和峰值应力等加载特征对金属材料层裂强度的耦合作用,为了解冲击载荷下金属材料微结构、加载特征与变形损伤行为之间的关系提供参考。Deformation and damage of metallic materials under shock loading depend on microstructure and loading characteristics.The effects of microstructures such as grain size,texture,grain boundary,phase boundary and element segregation bands on deformation and damage of metallic materials are reviewed,as well as the coupled effects of pulse duration,peak stress and strain rate on spall strength.This review provides a reference for establishing the relationship among microstructure,loading characteristics and deformation and damage behavior of metallic materials under shock loading.

关 键 词：损伤 层裂强度 微结构 加载特征 

分 类 号：O347.1[理学—固体力学]