快速凝固制备Mg4.44Zn1.85Y1.19Zr合金薄带  

Research on Mg4.44Zn1.85Y1.19Zr Alloy Strips by Rapid Solidification

作　　者：陈骞[1] 刘广[1] 张振忠[1] 张浩[1] 张少明[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《新技术新工艺》2008年第6期73-75,共3页New Technology & New Process

基　　金：中国人民解放军武器装备重点基金项目(6140502)

摘　　要：通过单辊甩带法成功制备出不同转速的Mg4.44Zn1.85Y1.19Zr成分的薄带,采用XRF、XRD、SEM分析、显微硬度测量等分析方法,研究了薄带的凝固组织及显微硬度。结果表明:随着辊速的提高,晶粒不断细化,薄带的硬度不断提高。晶粒细化是显微硬度提高的主要原因。The ribbons of rapidly solidification Mg4.44Zn1.85Y1.19Zr alloy were obtained by melt-spinning, whose microstructures and properties were investigated by XRF, XRD, SEM and micro-hardness measurement. The results show that as increase of the rolling speed, the grains in the zone near the roll surface become finer and finer, the micro-hardness of the alloy Strips can be increased, which is attributed to the refinement of the grain size.

关 键 词：Mg-Zr-Zn-Y合金 快速凝固 显微组织 显微硬度 

分 类 号：TG146.22[一般工业技术—材料科学与工程]