添加Cr元素对快速凝固Al-Ti-Fe基合金显微组织和显微硬度的影响  

Influence of Cr Element Addition on Microstructure and Microhardness of Rapidly Solidified Al-Ti-Fe Alloy

作　　者：曹庆平[1] 陈翌庆[2] 苏勇[2] 周尧和[1] 

机构地区：[1]上海交通大学,上海200030 [2]合肥工业大学,安徽合肥230009

出　　处：《稀有金属材料与工程》2004年第3期279-284,共6页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(50071032);安徽省教委自然科学基金资助(2000j11723)

摘　　要：采用单辊旋铸技术制备Al-2.5Ti-2.5Fe 和Al-2.5Ti-2.5Fe-2.5Cr合金薄带,利用X射线衍射、EDS、透射电镜和高分辨电镜来分析该两种合金的急冷态和退火态显微组织,研究了Cr对快速凝固Al-2.5Ti-2.5Fe合金显微组织和显微硬度的影响。Rapidly solidified Al-2.5Ti-2.5Fe and Al-2.5Ti-2.5Fe-2.5Cr alloys were prepared by a melt spinning method. As-quenched and as-annealed microstructures were studied by transmission electron microscopy (TEM), X-ray diffractometry(XRD), EDS and HREM. The influence of the Cr element doping on the as-quenched and as-annealed microstructure and microhardness of rapidly solidified Al-Ti-Fe alloy was also studied.

关 键 词：快速凝固 Al-Ti-Fe合金 Al-Ti-Fe-Cr合金 急冷态 退火态 显微组织 显微硬度 

分 类 号：TG113[金属学及工艺—物理冶金]