李成铭,李萍,张翔,等.ECAPT 工艺对 SiCp/ Al 基复合材料组织和性能的影响[J].精密成形工程,2013,5(2):36-39,81.
LI Cheng-ming,LI Ping,ZHANG Xiang,et al.Microstructure and Properties of ECAPT of SiCp/ Al Particulate Composite[J].Journal of Netshape Forming Engineering,2013,5(2):36-39,81. |
| ECAPT 工艺对 SiCp/ Al 基复合材料组织和性能的影响 |
| Microstructure and Properties of ECAPT of SiCp/ Al Particulate Composite |
| 投稿时间：2012-12-09 修订日期：2013-02-01 |
| DOI：10.3969/j.issn.1674-6457.2013.02.008 |
| 中文关键词: 大塑性变形 等径角挤扭 金属基复合材料 SiC 颗粒 显微组织 力学性能 |
| 英文关键词: SPD ECAPT MMCs SiCp microstructure mechanical property |
| 基金项目:国家自然科学基金(51175138) ;高等学校博士学科点专项基金(20100111110003) |
|
| 摘要点击次数: 4893 |
| 全文下载次数: 3679 |
| 中文摘要: |
| 探究了用等径角挤扭( ECAPT) 法制备的 SiCp/ Al 基复合材料组织演化过程和力学性能。 比较了2 种体积分数的 SiCp(8 . 75% 和 35% ) 复合材料在 ECAPT 中组织演化规律,测试了其硬度值及致密度。 结果表明,ECAPT 形变量大,细化晶粒能力强,SiCp 分布均匀性好,其致密效果 SiCp 体积分数大的( 35% ) 比小的(8 . 75% ) 差;并且体积分数为 35% 的 SiCp 复合材料存在“ 拱桥效应冶 ,但颗粒细化效果优于体积分数为 8 .75% 的 SiCp。 |
| 英文摘要: |
| This article is about microstructure evolution of SiCp/ Al matrix composites in the processing of equal channel angular pressing and twist extrusion ( ECAPT) and mechanical properties of the sample after ECAPT. During ECAPT, microstructure evolution processes of different percentage compositions of SiCp( volume fraction 8. 75% and 35% ) are explored. The effects of ECAPT on different volumes of SiCp/ Al particulate composite's hardness and density are analyzed. It is shown that ECAPT is a tool to get the strong defomation and the good ability to refine grain and distribute SiCp. Density of 35% SiCpcomposite material billet is smaller than that of 8. 75% SiCp, and to 35% SiCpcomposite material ," Arch Bridge Effect" happens, but its refining effect is better than that of 8. 75% SiCp. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501719号