铸造技术2017，Vol.38Issue(7)：1562-1566,5.DOI:10.16410/j.issn1000-8365.2017.07.009
TC4/Al30Si固液扩散溶解层的研究
Research on Liquid-solid Diffusion Dissolution Layer in TC4/Al30Si Composites
摘要
Abstract
TC4/Al30Si bimetallic composites were prepared in a molybdenum wire resistance furnace.The microstructure and constituents of transition layer were characterized by optical microscope,scanning electron microscope and energy dispersive spectrometer,and the microhardnesses were tested.The results show that the TC4/Al30Si bimetallic composites with good diffusion dissolution layer can be achieved at 650 ℃ for 60 min.The diffusion layer presents uniform microstructure,flat interface,moderate thickness and non-oxide inclusions,without welding defects such as holes.Ti and Al diffusion is full in the TC4/Al30Si interface,Si enrichs in dissolved layer and forms Ti7Al5Si12 phase layer,which hidered the diffusion of Ti and Al.Based on the reinforcement of Ti7Al5Si12,the microhardness of dissolved layer is higher than the parent metal and the peak hardness is up to 611.2 HV.关键词
钛合金/铝合金/固液/扩散溶解层Key words
titanium alloy/aluminum alloy/liquid-solid/diffusion dissolution layer分类
通用工业技术引用本文复制引用
刘彦峰,闵星超,康文江,刘佳,王献辉..TC4/Al30Si固液扩散溶解层的研究[J].铸造技术,2017,38(7):1562-1566,5.基金项目
陕西省科技统筹创新工程计划资助项目(地方重大专项)(2012KTDZ02-02-01) （地方重大专项）
陕西省教育厅专项科研计划资助项目(14JK1220) （14JK1220）
商洛学院服务地方经济专项资助项目(12SKY-FWDF006) （12SKY-FWDF006）
