喷射共沉积颗粒增强金属基复合材料的研究现状与进展  

Status and Development of Spray Deposited Metal Matrix Composite Reinforced with Particle

作　　者：贺毅强[1] 周海生[1] 李俊杰[1] 冯立超[1] 

机构地区：[1]淮海工学院机械工程学院,江苏连云港222005

出　　处：《材料科学与工程学报》2016年第2期338-344,320,共8页Journal of Materials Science and Engineering

基　　金：江苏省自然科学基金资助项目(BK20141250);江苏省高校自然科学研究面上资助项目(14KJB430005);国家自然科学基金资助项目(51004050);江苏高校优势学科建设工程资助项目;连云港市科技计划项目(CG1418;CXY1404);江苏高校品牌专业建设工程项目;2012年度江苏"青蓝工程"人才资助项目

摘　　要：作为一种综合了铸造与粉末冶金优点制备近成形颗粒增强金属基复合材料的方法,喷射共沉积技术及其应用受到了广泛的关注。本文综述了喷射沉积颗粒增强金属基复合材料的发展现状;介绍了喷射共沉积技术的原理;讨论了喷射共沉积过程中金属液体对增强相的捕获机理和凝固前沿对颗粒的捕获问题;介绍了喷射沉积颗粒增强金属基复合材料的装置及工艺参数的控制;着重介绍了喷射沉积材料的组织性能及致密化工艺,提出通过旋球同步预致密后再分别进行往复镦-挤和等径角挤压实现沉积坯的大塑性变形达到完全致密与冶金结合;指出了喷射沉积金属基复合材料将向组织均匀化、韧性化、完全致密化方向发展。Spray deposition technique and its application have attracted extensive interest in recent years as a processing method of particle reinforced metal matrix composite combined with the advantages of casting and powder metallurgy.Status and development of the spray deposited metal matrix composite reinforced with particle are summarized;Reinforced particle captured by metal liquid and front of solidification are discussed;Devices and process parameters of the spray deposited metal matrix composite reinforced with particle are introduced;Microstructure and performance as well as densification technologies of the spray deposited are briefly summarized;Rotary ball synchronous densification combined with Repetitive Upsetting and Extrusion and multi-pass Equal Channel Angular Pressing can be employed to obtain full metallurgical bonding between deposited particles;Development trends of metal matrix composite by spray deposition is invented to the direction of microstructure with uniform microstructure,excellent toughness and full densification.

关 键 词：喷射共沉积 金属基复合材料 增强颗粒 致密化 

分 类 号：TB331[一般工业技术—材料科学与工程]