铸造技术2012，Vol.33Issue(12)：1372-1374,3.
热挤压粉末冶金SiCp/Al中SiC分布及运动规律研究
Research on Distribution and Movement of SiC Particles in P/M SiCp/Al Composite
摘要
Abstract
The distribution and motion of SiC particles in the PM SiCp/7090Al composite billet during hot extrusion were investigated. The results show that the more uniform the distribution of SiC particles in the PM billet, the more uniform of SiC particles in the as-extruded rod. There is still an order and directional distribution of SiC particles in the longitudinal direction. With a small extrusion ratio of 11, many obvious interfaces exist between powder in the as-extruded rod. Metallurgical interfaces are achieved with the extrusion ratio of 17. The ambient ultimate tensile strength increases from 363 MPa to 493 MPa with the increase of the extrusion ratio from 11 to 39.关键词
铝基复合材料/粉末冶金/热挤压/显微组织/力学性能Key words
aluminum matrix composite/ powder metallurgy/ hot extrusion/ microstructure/ mechanical properties分类
通用工业技术引用本文复制引用
孙有平,涂耀耀,白兆军..热挤压粉末冶金SiCp/Al中SiC分布及运动规律研究[J].铸造技术,2012,33(12):1372-1374,3.基金项目
教育部科学技术研究重点项目(211136) （211136）
广西自然科学基金项目(2011GXNSFFF018004) （2011GXNSFFF018004）
广西教育厅科研基金项目(201012MS126) （201012MS126）
广西高校优秀人才计划项目(桂教人[2012]41号) （桂教人[2012]41号）
