• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium on Quasicrystals-Preparation, Properties and Applications Nov 27-30, 2000, Boston, Massachusetts, U.S.A. >Processing and Mechanical Properties of Quasicrystal-Reinforced Al-Alloys
【24h】

Processing and Mechanical Properties of Quasicrystal-Reinforced Al-Alloys

机译：准晶增强铝合金的加工与力学性能

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

We investigated the suitability of powder metallurgy as well as die casting for the fabrication of light-weight Al-based composiles with quasicrystalline particles embedded in an aluminum matrix. Al-Mn-Ce and Al-Cu-Fe quasicrystalline powders were synthesized by milling of elemental powder mixtures or arc-melted prealloys using a planetary ball mill. The mixture of the quasicrystalline phase and the Al-matrix phase with an appropriate ratio was realized by an initial aluminum excess or by blending of quasicrystalline powder with pure aluminum. The powders were consolidated by hot extrusion. Bulk samples of Φ3mm diameter and 50mm length were also directly prepared by squeezing the melt into a copper mold. CCRT-compression tests revealed a yield strength of about 400 MPa, an ultimate strength of 565 MPa and a ductility of up to 19 % fracture strain as optimum mechanical properties.
机译：我们研究了粉末冶金以及压铸对于制造轻质铝基复合材料的适用性，该复合材料具有嵌入铝基体中的准晶体颗粒。通过使用行星式球磨机研磨元素粉末混合物或电弧熔化的预合金来合成Al-Mn-Ce和Al-Cu-Fe准晶体粉末。通过初始铝过量或通过将准晶体粉末与纯铝混合来实现适当比例的准晶体相和Al-基体相的混合物。通过热挤出使粉末固结。直径Φ3mm，长度50mm的块状样品也可以通过将熔体挤压到铜模具中直接制备。 CCRT压缩测试表明，屈服强度约为400 MPa，极限强度为565 MPa，延展性高达19％的断裂应变是最佳的机械性能。

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