钛合金精密铸件表面α层去除工艺研究  

Removal Process of α-layer on Surface of Titanium Alloy Investment Castings

作　　者：沈选金 罗国军 唐丽英 贺同正 Shen Xuanjin;Luo Guojun;Tang Liying;He Tongzheng(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Panzhi-hua Iron&Steel Research Institute Co.,Ltd.,Panzhihua 617000)

机构地区：[1]攀钢集团攀枝花钢铁研究院有限公司钒钛资源综合利用国家重点实验室,攀枝花617000

出　　处：《特种铸造及有色合金》2024年第5期713-717,共5页Special Casting & Nonferrous Alloys

摘　　要：在生产钛合金精密铸件过程中,熔融状态下的钛合金极易与面层型壳发生界面反应,在铸件表面产生具有高硬度、低韧性的表面α层,从而对钛合金铸件的表面品质和力学性能造成负面影响。研究了精密铸造ZTC4钛合金铸件表面α层的去除工艺,以期提高ZTC4钛合金铸件的表面质量和力学性能,从而提高产品品质。During the producing process of titanium alloy investment castings,the molten titanium alloy is easy to react with the shell,resulting inα-layer with high hardness and low toughness on the surface of castings,which has a nega⁃tive impact on the surface quality and mechanical properties of titanium alloy castings.The removal process ofα-layer on the surface of ZTC4 titanium alloy castings was investigated in order to improve the surface quality and mechanical properties of ZTC4 titanium alloy castings,thus improving the quality of products.

关 键 词：钛合金 表面α层 力学性能 

分 类 号：TG249.5[机械工程—精密仪器及机械] TG146.23[金属学及工艺—铸造]