快速凝固 Al-Fe 合金中准晶相的研究  

A Quasicrystalline Phase in the Rapidly Solidified Al-Fe Alloy

作　　者：汤亚力[1] 沈宁福[1] 关绍康[1] 刘晓芳[1] 袁新[1] 

机构地区：[1]郑州工业大学材料研究中心

出　　处：《郑州工业大学学报》1998年第3期7-9,31,共4页Journal of Zhengzhou University of Technology

基　　金：国家"863";国家科委基金

摘　　要：在快速凝固Ａｌ－Ｆｅ－Ｖ－Ｓｉ合金棒材中发现了１种圆形准晶相，尺寸为０２～０５μｍ，成分为Ａｌ－８０ａｔ％Ｆｅ－２．１ａｔ％Ｖ－３．２ａｔ％Ｓｉ。对此准晶进行了透射电镜、Ｘ－光衍射结构分析，并对准晶的形成机制进行了讨论。A spheroidal quasicrystalline phase with the grain size of 0.2～0.5μm and the chemical composition of Al-8.0at.%Fe-2.1at.%V-3.2at.%Si has been observed in the RS Al-Fe-V-Si extrusions.TEM and XRD analyses were carried out to investigate the structural features of this phase.The mechanism of the phase formation has been discussed.

关 键 词：快速凝固 准晶相 铝基合金 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG139.8[金属学及工艺—金属材料]