5A30铝合金弥散析出相研究  

Study on the Dispersed Phases of Al-Mg-Mn Aluminum Alloy

作　　者：刘国元[1] 王月[1] 郗雨林[1] 岳灿甫[1] 

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2012年第2期32-34,39,共4页Development and Application of Materials

摘　　要：本文系统研究了5A30铝合金的微观组织。结果表明,该合金显微组织中的弥散析出相并非通常认为的富Mg的β相,而是Al6Mn和Al4Mn两种富Mn相;真正的β相数量很小,其形态与富Mn相区别明显。The microstructures of 5A30 aluminum alloy was systematically studied in this paper.It was showed that the typical dispersed particles were a kind of element Mn-rich phases including Al6Mn and Al4Mn,rather than β（Al3Mg2） phase as known usually.There are indeed a few of β precipitation particulates in the alloy and their morphologies are apparently different with those of the Mn-rich phases.

关 键 词：5A30铝合金 微观组织 Al3Mg2相 

分 类 号：TG113.12[金属学及工艺—物理冶金]