高温溶解法制备铝磷变质剂及变质效果研究  

Study on Preparation of Aluminum Phosphorus Modification Agent by High Temperature Dissolution Method and Its Modification Effect

作　　者：关博文 李青春[2] 霍宝阳 赵志伟[2] GUAN Bo-wen;LI Qing-chun;HUO Bao-yang;ZHAO Zhi-wei(Engineering Training Center,Liaoning University of Technology,Jinzhou 121000,Liaoning,China;School of materials science and Engineering,Liaoning University of Technology,Jinzhou 121000,Liaoning,China)

机构地区：[1]辽宁工业大学工程训练中心,辽宁锦州121000 [2]辽宁工业大学材料科学与工程学院,辽宁锦州121000

出　　处：《铸造》2024年第6期788-793,共6页Foundry

摘　　要：采用高温溶解法制得Al-P合金,AlP的平均尺寸约为5μm。研究了冷却速度对Al-P合金凝固组织的影响规律,发现降低冷却速度会导致AlP析出长大,不利于获得细小的AlP;提高冷却速度会导致AlP开裂,这种裂纹的产生有利于获得更加细小的AlP,有利于变质处理。Al-P合金对过共晶铝硅合金具有较好的变质效果,能够将Al-15%Si合金初生硅尺寸细化到16.56μm。Al-P alloy was prepared by high temperature dissolution method,and the average size of AlP was about 5μm.The effect of cooling rate on the solidification microstructure of the Al-P alloy was studied.It was found that reducing the cooling rate would lead to the precipitation and growth of the AlP,which was not conducive to obtaining fine AlP.Increasing the cooling rate will lead to cracking of the AlP,which is conducive to obtaining finer AlP and is conducive to modification.The Al-P alloy had a good modification effect on hypereutectic Al-Si alloy,and could refine the primary silicon of the Al-15%Si alloy to 16.56μm.

关 键 词：Al-P合金 铝硅合金 变质处理 凝固过程 中间合金 

分 类 号：TG292[金属学及工艺—铸造] TG146.21[一般工业技术—材料科学与工程]