摘要
研究了筒体温度对微熔铸半固态熔体铝合金A356晶粒形貌的影响。结果表明,在适当的温度范围内,配合一定的搅拌速度,能形成组织均匀、晶粒细小的A356半固态熔体。当筒体温度为620℃,搅拌速度为800r·min-1时,可制备出优质的A356半固态熔体,α-Al晶粒的平均尺寸为54μm,形状因子为0.66,熔体样品的显微硬度为HV 82.97。
Effect of bucket temperature on the grain morphology of semi-solid melt A356 aluminum alloy by micro fused-casting was studied in this paper.In the results,the semi-solid melt A356 with uniform microstructure and fine grain can be formed at the appropriate temperature and a certain stirring speed.The semi-solid melt A356 in high quality can be prepared at the bucket temperature of 620℃in the stirring velocity of 800 r·min-1,the average size ofα-Al grains is 54μm,the shape factor is 0.66,and the Vickers hardness is HV 82.97.
作者
罗晓强
韩永军
冯云晓
于豪
于春波
赵丽恒
LUO Xiao-qiang;HAN Yong-jun;FENG Yun-xiao;YU Hao;YU Chun-bo;ZHAO Li-heng(School of Chemical and Environmental Engineering,Pingdingshan University,Pingdingshan 467000,China)
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2019年第3期170-174,共5页
Powder Metallurgy Technology
基金
河南省科技厅科技发展计划资助项目(172102210430)
关键词
半固态熔体
晶粒形貌
温度
铝合金
微熔铸
semi-solid melt
grain morphology
temperature
aluminum alloy
micro fused-casting
