变质细化在Mg-Al系合金中的应用及研究进展  

Application and Research Progress of Metamorphic Refinement in Mg-Al Series Alloys

作　　者：李华成 程法嵩 于雷 范顺昌 占亮 冯志军 马英勃 孙志明 LI Hua-cheng;CHENG Fa-song;YU Lei;FAN Shun-chang;ZHAN Liang;FENG Zhijun;MA Yingbol;SUN Zhi-ming(Shenyang Zhuyan Science and Technology Limited Company,Shenyang 110022,Liaoning,China;Shenyang Research Institute of Foundry Co.,Ltd.,CAM,Shenyang 110022,Liaoning,China;AECC Guizhou Liyang Aviation Power Limited Company,Guiyang 550014,Guizhou,China;Military Representative Office of the Air Force Equipment Department in Liaoyang,Liaoyang 111000,Liaoning,China)

机构地区：[1]中国机械总院集团沈阳铸研科技有限公司,辽宁沈阳110022 [2]中国机械总院集团沈阳铸造研究所有限公司,辽宁沈阳110022 [3]中国航发贵州黎阳航空动力有限公司,贵州贵阳550014 [4]空军装备部驻辽阳地区军事代表室,辽宁辽阳111000

出　　处：《铸造》2023年第12期1535-1541,共7页Foundry

摘　　要：介绍了Mg-Al系合金的特点。综述了C、Sr、Ti、RE元素对Mg-Al系合金变质细化的影响和作用机理。从AZ、AM、AS、AE合金体系出发,对比了不同变质处理下的差异,指出了变质剂使用的最佳用量、加入温度、保温时间,归纳了变质剂对合金晶粒尺寸、组织演变、力学性能的影响,为Mg-Al系合金变质细化提供参考,最后总结了几类合金中变质剂的作用特点,为制备高性能低成本的镁合金提供系统思路。This paper introduced the characteristics of Mg-Al alloys,reviewed the influence and mechanism of C,Sr,Ti,and RE elements on the metamorphic refinement of Mg-Al alloys.By the AZ,AM,AS and AE alloy systems,the differences under different metamorphic treatments were compared.The optimal dosage,addition temperature and holding time of the metamorphic agent were pointed out.The influence of the metamorphic agent on the grain size,microstructure evolution and mechanical properties of the alloy were summarized,which provided a reference for the metamorphic refinement of Mg-Al alloys.Finally,the author summarized the characteristics of metamorphic agents in several types of alloys,and provided systematic ideas for the preparation of high-performance and low-cost magnesium alloys.

关 键 词：变质 细化 显微组织 机理 MG-AL合金 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TG113.1[金属学及工艺—金属材料]