大规格TB8钛合金化学成分均匀性研究  

Study on Chemical Composition Uniformity of Large TB8 Titanium Alloy

作　　者：曹瑞 王永强 岳旭 张晋 侯晶晶 马耀远 Cao Rui;Wang Yongqiang;Yue Xu;Zhang Jin;Hou Jingjing;Ma Yaoyuan(Xinjiang Xiangrun New Material Technology Co.,Ltd.,Hami Xinjiang 839000;Xinjiang Key Laboratory of Titanium-based New Materials,Hami Xinjiang 839000)

机构地区：[1]新疆湘润新材料科技有限公司,新疆哈密839000 [2]新疆钛基新材料重点实验室,新疆哈密839000

出　　处：《山西冶金》2022年第3期6-8,共3页Shanxi Metallurgy

基　　金：自治区创新环境(人才、基地)建设专项(XJQY2009)。

摘　　要：TB8钛合金是一种含钼量高的高强β钛合金,其合金含量高,因其在生产过程中产生高密度夹杂、成分偏析、电极块难以成型的风险较大,铸锭的单重和规格相对较小。鉴于此,通过选用合适的中间合金、提高电极块的压制压力、增加电极焊接强度及优化真空自耗熔炼工艺参数,经过三次VAR熔炼,生产出了Ф650 mm的TB8钛合金铸锭。利用化学分析方法对铸锭横向和纵向所取的试样进行合金元素分析,检验结果表明,应用此方法生产的TB8钛合金铸锭化学成分均匀性良好。TB8 titanium alloy is a high strength titanium alloy with high molybdenum content β-type titanium alloy has a high alloy content. Due to the high-density inclusions, component segregation and the high risk that the electrode block is difficult to form in the production process, the single weight and specification of the ingot are relatively small. In this study, by selecting appropriate master alloy,increasing the pressing pressure of electrode block, increasing the welding strength of electrode and optimizing the vacuum consumable smelting process parameters, it is produced through three times of VAR remelting Ф650 mm TB8 titanium alloy ingot. The alloy elements of the samples taken from the transverse and longitudinal direction of the ingot were analyzed by chemical analysis method. The test results show that the chemical composition uniformity of TB8 titanium alloy ingot produced by this method is good.

关 键 词：TB8 VAR熔炼 均匀性 高强钛合金 

分 类 号：TG146.23[一般工业技术—材料科学与工程]