不同种类铝合金晶粒细化剂中TiB2的对比研究  

Comparative Study of TiB2 in Grain Refiners of Different Aluminum Alloys

作　　者：王宝君 宋德峰 张有余[1] 张开宝 WANG Baojun;SONG Defeng;ZHANG Youyu;ZHANG Kaibao(Technology Center of Jiuquan Iron and Steel(Group)Co.Ltd.,Jiayuguan 735100,China)

机构地区：[1]酒泉钢铁(集团)有限责任公司技术中心,甘肃嘉峪关735100

出　　处：《甘肃冶金》2024年第1期98-101,共4页Gansu Metallurgy

摘　　要：采用金相显微镜、激光共聚焦显微镜和扫描电镜对MJD-AlTi5B1A、MJD-AlTi5B1B、MJD-AlTi5B1C和SH-AlTi5B1A铝合金晶粒细化剂中TiB2的分布进行了对比研究。研究表明:MJD-AlTi5B1A和SH-AlTi5B1A晶粒细化剂中TiB2粒子分布较为分散,粒子细小;MJD-AlTi5B1B晶粒细化剂局部组织不均匀;MJD-AlTi5B1C晶粒细化剂TiB2粒子分布轻微团聚。The distribution of TiB2 in grain refiners of MGD-AlTi5B1A,MGD-AlTi5B1b,MGD-AltT5B1c and SH-AlTi5B1A aluminum alloys was studied by metallographic microscopy,laser confocal microscopy and scanning electron microscopy.The results show that the distribution of TiB2 particles in the grain refiners MLD-AlTi5B1A and SH-AlTi5B1A is relatively dispersed and the particles are small.The local microstructure of MGD-AlTi5B1B grain refiner is not uniform.The particle distribution of MGD-AlTi5B1C grain refiner TiB2 is slightly agglomerated.

关 键 词：铝合金 晶粒细化剂 显微组织 TIB2 TIAL3 

分 类 号：TG146.21[一般工业技术—材料科学与工程]