(1. 山東大學(xué) 材料液態(tài)結(jié)構(gòu)及其遺傳性教育部重點(diǎn)實(shí)驗(yàn)室，
濟(jì)南 250061；
2. 山東費(fèi)縣銀光鎂業(yè)有限公司， 費(fèi)縣 273400)
摘 要: 制備了一種用于Mg-Al合金晶粒細(xì)化的Al-Ti-C中間合金。 發(fā)現(xiàn)該Al-Ti-C中間合金可以有效地細(xì)化鎂合金的晶粒，細(xì)化后的AZ61合金的抗腐蝕性能大大提高。分析認(rèn)為， Al-Ti-C中間合金中起晶粒細(xì)化作用的是Al4C3和TiC的復(fù)合相。
關(guān)鍵字: 鎂； Mg-Al合金； 晶粒細(xì)化； Al-Ti-C中間合金
BIAN Xiu-fang1, ZHANG Jun-yan1
（1. Key Laboratory of Liquid Structure and Heredity of Materials,
Ministry of Education, Shandong University, Ji＇nan 250061, China;
2. Shandong Feixian Yingguang Magnesium Co Ltd,
Feixian 273400, China）
Abstract:A special Al-Ti-C master alloy was prepared to refine the grains of Mg-Al alloys. The results show that the Al-Ti-C master alloy has an effective grain refinement for Mg-Al alloy. The corrosion resistance of AZ61 increases greatly, after refined by Al-Ti-C master alloy. It is the duplex of Al4C3 and TiC that serves as the nuclei of α(Mg) during solidification.
Key words: Mg; Mg-Al alloy; grain refinement; Al-Ti-C master
