氢化钛高温分解制高纯WTi合金  

Preparation of High Purity WTi Alloy by Decomposition of TiH at High Temperature

作　　者：杨益航 李剑波 刘文迪 张厚安 Yang Yihang;Li Jianbo;Liu Wendi;Zhang Houan(Fujian Key Laboratory of Functional Materials and Applications,School of Materials Science and Engineering,Xiamen University of Technology,Xiamen 361024,China;Department of R&D,Xiamen Honglu Tungsten Molybdenum Industry Co.,Ltd,Xiamen 361021,China)

机构地区：[1]厦门理工学院材料科学与工程学院福建省功能材料及应用重点实验室,福建厦门361024 [2]厦门虹鹭钨钼工业有限公司钨钼制品事业部,福建厦门361021

出　　处：《稀有金属材料与工程》2021年第6期2258-2262,共5页Rare Metal Materials and Engineering

基　　金：国家重点研发计划项目(2017YFB0305603);福建省中青年教师教育科研项目(JAT200405)。

摘　　要：本研究分析了TiH_(2)高温分解释氢的特性,将其应用于高纯WTi合金靶材的热压成型制备中。讨论了热压过程工艺对烧结样品纯度及原料配比对烧结坯微观组织的影响,采用金相显微镜、扫描电子显微镜(SEM)、碳硫分析、氧氮氢分析仪、辉光放电质谱法(GDMS)等观察WTi10样品的微观形貌及检测杂质含量。结果表明,随着Ti H_(2)在Ti成分中占比的提高,烧结出的WTi合金的气体杂质含量减少,烧结WTi10合金的微观组织更趋均匀,W元素无扩散至Ti基体内形成纤维状富钨相倾向逐渐减弱。研制出纯度99.9993%的超高纯WTi10靶材制品。The decomposition of TiH_(2) at high temperature was studied, and it was applied in the manufacture of high purity WTi alloy. The effect of hot pressing sintering process on the purity of WTi10 specimen was investigated. The effects of the different raw material ratios on the microstructure of WTi10 were also investigated. The microstructure and impurities of the WTi10 specimens were analyzed by OM, SEM,CS analyzer, ONH analyzer and glow discharge mass spectrometry(GDMS). The results indicate that with the increase of the ratio of TiH_(2) to Ti, the gas elements impurity content of the WTi alloy is reduced, the microstructure of WTi alloy tends to be more uniform, and the tendency of the diffusion of W to Ti matrix is weakened. The purity of WTi10 products is up to 99.9993%.

关 键 词：氢化钛 高温分解 高纯 WTi合金 

分 类 号：TF841.1[冶金工程—有色金属冶金]