喷射共沉积颗粒增强金属基复合材料的研究现状与进展

发布时间：2018-04-30 17:47

本文选题：喷射共沉积 + 金属基复合材料　；参考：《材料科学与工程学报》2016年02期

【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。
[Abstract]:As a method to synthesize the advantages of casting and powder metallurgy, spray codeposition technology and its application have been paid more and more attention. In this paper, the development of spray deposition particle reinforced metal matrix composites is reviewed, and the principle of spray codeposition technology is introduced. The capture mechanism of metal liquid and the capture of particles in solidification front during spray codeposition are discussed, and the device and control of process parameters for spray deposition of metal matrix composites reinforced by particles are introduced. The microstructure, properties and densification process of spray deposition materials are introduced in this paper. It is put forward that the large plastic deformation of the deposited billet can be achieved by fully compact and metallurgical combination after simultaneous pre-densification and reciprocating upsetting-extrusion and equal angular extrusion respectively. It is pointed out that spray deposited metal matrix composites will develop towards homogenization, toughness and complete densification.
【作者单位】：淮海工学院机械工程学院;
【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
【分类号】：TB33

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