喷射沉积铝基复合材料再结晶控制与强韧化机制的研究现状  

Current Status of Dynamic Recrystallization Control and Strengthening-Toughening Mechanisms of Spray Deposited Aluminium Matrix Composites

作　　者：贺毅强[1,2] 钱晨晨 李俊杰[2] 周海生[2] HE Yiqiang QIAN Chenchen LI Junjie ZHOU Haisheng(Jiangsu Marine Resources Development Research Institute, Lianyungang 222005 College of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang 222005)

机构地区：[1]江苏省海洋资源开发研究院,连云港222005 [2]淮海工学院机械工程学院,连云港222005

出　　处：《材料导报》2017年第17期90-97,共8页Materials Reports

基　　金：江苏省自然科学基金(BK20141250;BE2015100);江苏省高校自然科学研究面上项目(14KJB430005);国家自然科学基金(51004050;51301044);连云港市科技计划项目(CG141;CXY1404);江苏省海洋资源开发研究院开放基金(JSIMR201222);江苏高校品牌专业建设工程资助项目(PPZY2015C214);江苏省研究生培养创新工程项目(JGZZ_075)

摘　　要：喷射沉积颗粒增强铝基复合材料应用前景广阔,但因成形困难、强韧性低而受限,控制热变形过程中的动态再结晶行为和揭示强韧化机制是关键。综述了喷射沉积铝基复合材料致密化技术的分类与发展;概述了铝基复合材料在变形过程中的回复与再结晶;论述了喷射沉积铝基复合材料力学性能的影响因素,分析了导致强韧性降低的因素。展望了喷射沉积铝基复合材料的发展趋势,对铝基体动态再结晶行为的影响因素、颗粒增强铝基复合材料强韧性的影响机制及复杂微观组织下材料的强韧化机制、完善与发展喷射沉积材料的致密工艺和机理进行了探讨,并提出了提高材料力学性能和强韧性的措施。Spray deposited A1 matrix composite reinforced with particles has an extensive application prospect for its excellent performances, but its application is restricted by its poor deformability and low ductility and toughness. Controlling dynamic recrystallization behavior and revealing mechanism of strengthening and toughening of the composite during hot deformation are most important. Classification and development of densification technologies of spray deposited Al-matrix composite are introduced. Recovery and dynamic recrystallization of Al-matrix composite during deformation process are summarized. Influence factors of mechanical properties of Al-matrix composite are discussed. Developing trend of spray deposited Al-matrix composite is prospected. Effects of reinforcing particles and dispersoids on recrystaUization behavior, influencing mechanism of strength and toughness of A1 composite reinforced with particles and development of processing and mechanism of densification of spray deposited Al-matrix composite are discussed. Methods for improving mechanical properties and toughness of the composite are Drovided.

关 键 词：铝基复合材料 喷射沉积 颗粒增强 动态再结晶 强韧化机制 

分 类 号：TG146.2[一般工业技术—材料科学与工程]