• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Development of a Novel Cast 6351 Al-Al_4SiC_4 In Situ Composite
【24h】

Development of a Novel Cast 6351 Al-Al_4SiC_4 In Situ Composite

机译：新型铸造6351 Al-Al_4SiC_4原位复合材料的研制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this research work 6351 Al-Al_4SiC_4 composite has been developed through stir casting route with incorporation of fine TiC powder in 6351 Al melt. During stir casting, round shaped Al_4SiC_4 particles were generated as TiC reacted with molten aluminum. These Al_4SiC_4 particles were found to be acting as nucleation sites for primary α (causing grain refinement) along with engulfment effects promoting particle distribution without clustering. Furthermore, as the volume fraction of Al_4SiC_4 particles increased, the proportion of dendritic region decreased (more equiaxed grains appeared) and the overall grain size of the matrix decreased. This resulted in an improved strength and ductility of the composite. Equations were developed with a reasonable accuracy correlating the strength with microstructural parameters. An excellent combination of strength (UTS = 215 MPa) and ductility (%Elongation = 10) was obtained for 6351 Al-7 vol.% Al_4SiC_4 composite as compared to base cast 6351 Al alloy (UTS = 121 MPa, %Elongation = 3).
机译：在这项研究工作中，已经通过搅拌铸造工艺开发了6351 Al-Al_4SiC_4复合材料，并在6351 Al熔体中掺入了细小的TiC粉末。在搅拌铸造过程中，随着TiC与熔融铝反应，生成了圆形的Al_4SiC_4颗粒。发现这些Al_4SiC_4颗粒充当初生α的成核位点（引起晶粒细化），同时具有吞噬作用，促进了颗粒的分布而没有聚集。此外，随着Al_4SiC_4颗粒体积分数的增加，枝晶区域的比例降低（出现更多等轴晶晶粒），基体的整体晶粒尺寸减小。这导致复合材料的强度和延展性提高。以合理的精度开发了方程，将强度与微观结构参数相关联。与基础铸造6351铝合金（UTS = 121 MPa，％伸长率= 3）相比，6351 Al-7 vol。％Al_4SiC_4复合材料获得了强度（UTS = 215 MPa）和延展性（％伸长率= 10）的出色组合。 。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号