不同含碳物质对AZ91D镁合金变质效果的影响  

Effect of Different Carbon-Containing Material on Modification of AZ91D Magnesium Alloy

作　　者：阎峰云[1] 马孝斌[2] 李波[2] 那元真[2] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州市730050 [2]兰州理工大学有色金属合金及加工教育部重点实验室,兰州市730050

出　　处：《中国铸造装备与技术》2008年第5期19-21,共3页China Foundry Machinery & Technology

摘　　要：对比研究了活性炭与石墨对AZ91D变质效果的影响,分别采取单独和与铝粉混合两种不同的方式加入。实验表明:单独加入时,活性炭与石墨的变质效果大至相同,晶粒尺寸由未变质时的400μm降至240μm;两种物质与铝粉混合加入后,石墨与铝粉混合的变质效果较好,晶粒尺寸达到150μm。The modification effect of AZ91D Mg alloy by active carbon and graphite have been studied with parallel. Activated carbon and graphite have been added with two different ways, separately or mixed with aluminum powder.The experiments showed that：when separately added,the activated carbon and graphite have the same effect, the grain size of AZ91D changed from 400μm to 240μm; when mixed with aluminum powder, graphite has the better effect, the grain size of AZ91D reached 150μm.

关 键 词：AZ91D镁合金 活性炭 石墨 铝粉 变质效果 

分 类 号：TG146.22[一般工业技术—材料科学与工程]