自蔓延高温合成氢化−脱氢制备钛粉工艺优化  

Optimization on hydrogenation-dehydrogenation preparation of titanium powders by SHS

作　　者：周可心 杨占鑫 王俊博 母敏萱 陈健 齐国超[2] ZHOU Kexin;YANG Zhanxin;WANG Junbo;MU Minxuan;CHEN Jian;QI Guochao(Baoti Huashen Titanium Industry Co.,Ltd.,Jinzhou 121001,China;School of Material Science and Engineering,Liaoning University of Technology,Jinzhou 121001,China;Baoji Titanium Industry Co.,Ltd,Baoji 721014,China)

机构地区：[1]宝钛华神钛业有限公司,锦州121001 [2]辽宁工业大学材料科学与工程学院,锦州121001 [3]宝鸡钛业股份有限公司,宝鸡721014

出　　处：《粉末冶金技术》2025年第1期109-115,共7页Powder Metallurgy Technology

基　　金：辽宁省科揭榜挂帅资助项目(2023JH1/10400055);锦州市春芽计划资助项目(JZ2023A013)。

摘　　要：为优化自蔓延高温合成法氢化脱氢制备钛粉工艺过程,改变传统钢球球磨为闭环气流研磨,改变传统抽空脱氢工艺为减压点燃工艺,研究了优化工艺下自蔓延高温合成法氢化和脱氢前后样品微观结构、物相组成、化学成分和粒度分布。结果表明,自蔓延高温合成氢化制得的氢化钛氢含量较高(4.662%,质量分数),闭环气流研磨氢化后样品粒度均匀,粒度分布范围为40~250μm。与传统抽空脱氢工艺相比,减压点燃脱氢工艺有助于控制钛粉样品中N、O、C含量。To optimize the hydrogenation-dehydrogenation process for preparing titanium powders by self-propagating high-temperature synthesis(SHS)method,the traditional steel ball milling process was replaced by the new closed-loop air current grinding process,and the traditional evacuation process for dehydrogenation process was replaced by the decompression-ignition process.The microstructure,phase component,chemical composition,and particle size distribution of the samples prepared by the optimization process were studied.In the results,the hydrogen mass fraction in the titanium hydride samples is high(4.662%)after SHS hydrogenation,and the particle size distribution of the TiH2 particles is uniform with the range of 40~250μm after the closed-loop air flow grinding process.The new dehydrogenation process is beneficial to control the N,O,and C content in the titanium powder samples.

关 键 词：自蔓延高温合成法 氢化−脱氢工艺 氢化钛 钛粉 

分 类 号：TF123[冶金工程—粉末冶金]