Al-Zn-Ce非晶合金的相选择与组织结构演化  

Phase Selection and Microstructure evolution of Amorphous Al-Zn-Ce Alloys

作　　者：许爱华[1] 吴佑实[2] 张川江[2] 赵芳[1] 

机构地区：[1]山东大学化学与化工学院,山东济南250100 [2]山东大学材料科学与工程学院,山东济南250061

出　　处：《材料科学与工程学报》2003年第5期687-689,共3页Journal of Materials Science and Engineering

基　　金：山东省自然科学基金资助项目(Y2 0 0 0b0 2 )

摘　　要：本文研究了具有典型分解特征的Al Zn Ce非晶合金的形成和晶化过程 ,探讨了各种相的生成顺序。XRD和DSC测试结果表明强烈的化合物短程序有利于Al Zn Ce非晶合金的形成。在Al Zn Ce非晶合金的晶化过程中存在复杂的相选择行为 ,多种相的竞争形核和有限生长使其具有复杂的结构特点。同时 。This paper focuses on the formation process and crystallization process of amorphous Al-Zn-Ce alloys, which has the feature of typical decomposition. The formation order of all kinds of phases was explored. The results of XRD and DSC showed that the chemical short-range order is helpful to the formation of amorphous Al-Zn-Ce alloys. There exist complex phase selection behaviors during the crystallization process of the amorphous Al-Zn-Ce alloys. The competitive nucleation and the growth limitation of the various phases are attributed to the complex microstructure characteristic of amorphous Al-Zn-Ce alloys. Also the result showed that quenching rate has great impact on the process of amorphous formation.

关 键 词：Al-Zn-Ce非晶合金 预峰 分解特征 晶化 相选择行为 铝基非晶合金 X射线衍射 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG115.222[金属学及工艺—金属材料]