铝硅合金晶粒细化剂Al-Ti-C-P的研制  

Research and Development of Al-Ti-C-P Grain Refiner for Al-Si Alloys

作　　者：许春香[1] 梁丽萍[1] 卢斌峰[1] 薛永军[1] 张金山[1] 梁伟[1] 

机构地区：[1]太原理工大学材料科学与工程学院,山西太原030024

出　　处：《铸造技术》2007年第3期363-366,共4页Foundry Technology

基　　金：山西省自然科学基金资助项目(20011047);山西省专利推广资助项目(051025)

摘　　要：采用自蔓延+熔铸法制备了Al-Ti-C-P晶粒细化剂,探讨了其对共晶铝硅合金的变质效果。通过扫描电镜(SEM)、光学显微镜(OM)、能谱分析(EDS)和X射线衍射仪(XRD)等手段,研究了Al-Ti-C-P晶粒细化剂的显微组织。结果表明:Al-Ti-C-P晶粒细化剂的主要相组成为TiAl3、TiC、AlP,对共晶铝硅合金具有优良的变质效果。晶粒细化剂中的TiAl3和TiC颗粒促进了AlP对共晶铝硅合金的变质效果。Al-Ti-C-P grain refiner was prepared by combining SHS technique and melting-casting method, Modification effect of Al-Ti-C-P on Al-Si alloy was also investigated, The microstructure of grain refiner was studied by OM, XRD, SEM and EDS. The experimental results show that Al-Ti-C- P grain refiner has excellent effect on eutectic Al-Si alloy and the main phases of Al-Ti-C-P grain refiner are TiAl3, TiC and AlP, It is also found that the TiC and TiAl3 particles in the melt can improve the modification effect of AlP to Al-Si alloy.

关 键 词：Al—Ti—C-P 晶粒细化剂 ALP 变质处理 

分 类 号：TG27[金属学及工艺—铸造]