Al-Si-P master alloy and its modification and refinement performance on Al-Si alloys

查看全文 作　　者：ZUO [1]Min;LIU [1]Xiangfa;DAI [1]Hongshang;LIU [2]Xiangjun

机构地区：[1]Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials(Ministry of Education), Shandong University, Jinan 250061, China;[2]Shandong Shanda Al & Mg Melt Technology Co., Ltd., Jinan 250061, China

出　　处：《Rare Metals》索引2009年第28卷第4期,共6页

基　　金：supported by the National Science Fund for Distinguished Young Scholars (No. 50625101);the Key Project of Science and Technology Research of the Ministry of Education of China (No. 106103) 摘　　要：An Al-Si-P master alloy has been developed by an in-situ reaction and the electron probe microanalyzer (EPMA) results show that there are many pre-formed AlP particles contained in the master alloy. Silicon introduced into the system plays an important role in remarkably improving the distribution and content of AlP particles due to their similar crystal structure and lattice parameters. ZL109 alloys have shown fast modification response to the addition of 0.5% Al-15Si-3.5P master alloy at 720°C, with a mass of primary Si precipitating in size of about 15 μm. Also, coarse primary Si grains in Al-30Si alloy can be refined dramatically from 150 μm to 37 μm after the addition of 2.0% Al-15Si-3.5P master alloy at 850°C. The P recovery of the Al-15Si-3.5P master alloy is much higher than that of a Cu-8.5P master alloy due to the pre-formed AlP particles. 关键词：中间合金 Al Si 共晶碱性磷酸酶 ZL109合金性能修改

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Al-Si-P master alloy and its modification and refinement performance on Al-Si alloys

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