TC4 ELI钛合金高品质球形粉末的制备  

Preparation of high quality spherical powder of TC4 ELI titanium alloy

作　　者：陈光润 马兰 杨绍利 肖建 汪强兵 Chen Guangrun;Ma Lan;Yang Shaoli;Xiao Jian;Wang Qiangbing(Vanadium and Titanium College,Panzhihua University,Panzhihua 617000,Sichuan,China;Sichuan Key Laboratory for Comprehensive Utilization of Vanadium and Titanium Resources,Panzhihua 617000,Sichuan,China;Guangzhou Sailong Additive Manufacturing Co.,Ltd.,Guangzhou 518000,Guangdong,China)

机构地区：[1]攀枝花学院钒钛学院,四川攀枝花617000 [2]钒钛资源综合利用四川省重点实验室,四川攀枝花617000 [3]广州赛隆增材制造有限责任公司,广东广州518000

出　　处：《钢铁钒钛》2024年第4期23-28,共6页Iron Steel Vanadium Titanium

基　　金：四川省重点研发项目(编号:2020YFG0215)。

摘　　要：以Ti6Al4V ELI(TC4 ELI)钛合金棒料为原料,采用等离子旋转电极雾化法制备TC4 ELI球形粉末,研究了电流和电极转速对粉末粒度分布及粉末特性的影响,利用扫描电镜(SEM)对粉体形貌进行了观察。结果表明:电流保持600 A不变时,随着电极转速提高,53~106μm TC4 ELI粉末收得率增大;当电极转速为44 000 r/min时,随着电流的增大,粒径<106μm的粉末收得率略有增加,所得粉末松装密度在2.59~2.72 g/cm^(3)范围内,振实密度为3.0 g/cm^(3),氧含量(质量分数)在560×10^(-6)~750×10^(-6),流动性(50g计)为30.6~35.7s;粉末成球率高、球形度好,边缘光滑无杂质,球形度>90%。Using titanium alloy rod TC4 ELI as raw material,spherical TC4 ELI powder was prepared by plasma rotating electrode method (PREP).The effects of current and electrode speed on the particle size distribution and powder properties were investigated.The morphology of the powder was observed using a scanning electron microscope (SEM).The research results show that when the current remained constant at 600 A,the yield of 53~106μm TC4 ELI powder increases with the increase of electrode speed.At an electrode speed of 44000 r/min,the yield of powder with a particle size of less than 106μm increases slightly with increasing current.The obtained powder has a loose packing density in the range of 2.59~2.72 g/cm~3,a compacted density of 3.0 g/cm~3,an oxygen content in the range of560×10^(-6)~750×10^(-6) and a fluidity(calculated as 50 g) of 30.6~35.7 s.The powder has high sphericity rate,good sphericity,smooth edges without impurities and a sphericity greater than 90%.

关 键 词：TI6AL4V 球形粉末 等离子旋转电极雾化法 收得率 

分 类 号：TF823[冶金工程—有色金属冶金]