ANNULAR ELECTROMAGNETIC STIRRING-A NEW METHOD FOR THE PRODUCTION OF SEMI-SOLID A357 ALUMINUM ALLOY SLURRY

• 来源期刊: 金属学报(英文版)
• 学科: 工学
• 年，卷（期）: 2009,（6）
• 页码范围: 408-414
• 页数: 7页
• 分类号: TG1
• 语种: 英文
• DOI: 10.1016/S1006-7191(08)60116-7

摘要

A new method for producing semisolid slurry,annular electromagnetic stirring(AEMS),to refine and spheroidize grains was exploited.Experimental work was undertaken to investigate the effects of cooling rate,stirring power and stirring time on the solidification behavior of A357 alloy using A-EMS.It was found that increasing the cooling rate and stirring power gave rise to substantial grain refinement,which could be attributed to the increase of effective nucleation rate caused by the extremely uniform temper...