摘要
综述了熔体过热法、氯化铁法、碳质材料变质处理法、熔体搅拌法以及加Zr、Ca或Sr等镁合金铸态晶粒细化技术的研究现状和最新进展,重点分析了不同细化方法的工艺特点和细化机理,指出了镁合金铸态晶粒细化研究还存在的问题,并对今后的发展方向进行了展望。
At present the as-cast grain refinement technologies of magnesium alloys consist of the melt superheating treatment, Elfinal process, carbon inoculation, melt agitation method, Zr, Ca, Sr and other alloy elements addition method chiefly. In this paper, the research status and development of these as-cast grain refinement technologies of magnesium alloys were reviewed, and the processing character and refinement mechanism of these different refinement methods were analyzed emphatically, and the existing problems and development direction were pointed out.
出处
《铸造》
EI
CAS
CSCD
北大核心
2005年第4期314-319,共6页
Foundry
基金
国家863高技术研究发展项目(2001AA331050)
重庆市科技攻关项目(CSTC
2004AA4003)。
关键词
镁合金
铸态晶粒
细化技术
Magnesium alloys
as-cast grain
refinement technology
