AZ31镁合金铸造夹杂成因分析及防止  

Reason and Prevention of Inclusions in AZ31 Magnesium Alloy Casting

作　　者：朱弘伟 夏书乐 武思成 李建刚 ZHU Hong-wei;XIA Shu-le;WU Si-cheng;LI Jian-gang(School of Physics and Electronic Science,Shanxi Datong University,Datong Shanxi,037009;CITIC Dicastal Co.,Ltd.,Qinhuangdao Hebei,066004)

机构地区：[1]山西大同大学物理与电子科学学院,山西大同037009 [2]中信戴卡股份有限公司,河北秦皇岛066004

出　　处：《山西大同大学学报（自然科学版）》2021年第3期12-14,95,共4页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：山西大同大学2019博士科研启动金[2019-B-05];山西省应用基础研究计划项目[201901D111316];山西省高等学校科技创新项目[2020L0488]。

摘　　要：以AZ31铸态镁合金铸锭检测时发现的严重夹杂为研究对象,采用金相显微镜、扫描电镜等手段对夹杂物的形貌和分布进行了分析,使用能谱定量分析确定了夹杂物主要为Al-Mn相及铝锌碳氧化物。通过改进铸造工艺实现了夹杂物的防止,并对夹杂物成因进行分析讨论,提出了通过熔炼工艺和铸造工艺改善熔体质量的解决方案。Taking the serious inclusions found during the inspection of AZ31 as-cast magnesium alloy ingots as the research ob-ject,the morphology and distribution of the inclusions were analyzed by means of optical microscope,scanning electron microscope,etc.,and quantitative analysis of energy spectrum determined that the inclusions were mainly Al-Mn phase and Al-Zn carbon oxide,the prevention of inclusions was achieved by improving the casting process,and the reason of inclusions was analyzed and dis-cussed.A solution to improve the quality of melt through smelting process and casting process was proposed.

关 键 词：AZ31镁合金 铸造 夹杂 Al-Mn相 

分 类 号：X703.5[环境科学与工程—环境工程]