铸造技术2012，Vol.33Issue(10)：1145-1148,4.
热挤压喷射沉积Al-SiCp复合材料中SiC分布特征研究
Distribution Feature of SiC in Spray Deposition Al-SiCp Composite after Hot Extrusion
摘要
Abstract
A billet of SiCp/Al composite was fabricated by the technique of multi-layer spray deposition, and extrusion deformation was carried out at different extrusion ratio, the effect of working processes on the distribution feature of SiC particles was investigated. The results show that more SiC particles are at the surface of the droplet and less in the inner because SiC particles adhere mainly to the surface of the alloy droplets during deposition. Thus, the distribution of SiC particles in the composite is characteristic of the layered feature. This layered feature of SiC particles is difficult to eliminate by the following hot extrusion. The distribution of SiC particles is like streamline in the longitudinal direction, while with ring-like feature in the transverse direction. A higher extrusion ratio results in an more uniform distribution of SiC particles.关键词
喷射沉积/复合材料/热挤压/SiC/分布特征Key words
spray deposition/ composite/ hot extrusion/ SiC/ distribution feature分类
矿业与冶金引用本文复制引用
孙有平,严红革,苏斌,何江美..热挤压喷射沉积Al-SiCp复合材料中SiC分布特征研究[J].铸造技术,2012,33(10):1145-1148,4.基金项目
教育部科学技术研究重点项目(211136) （211136）
广西自然科学基金创新研究团队项目(2011GXNSFF018004) （2011GXNSFF018004）
广西教育厅科研项目(201012MS126) （201012MS126）
