New VAR （Vacuum Arc Remelting） Process for TB8 Ti Alloy with High Molybdenum Content

Zhang Lijun1; Bai Yu1; Zhou Zhongbo1; Liu Di1; Wang Xingyun1; Xue Xiangyi1; Chang Hui1

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New VAR （Vacuum Arc Remelting） Process for TB8 Ti Alloy with High Molybdenum Content
Vol. 31, Issue 7, Pages: 595-598(2011)
Published： 2011 ，
DOI：

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[1]张利军,白钰,周中波,刘娣,王幸运,薛祥义,常辉.高钼含量TB8钛合金新型VAR熔炼工艺[J].特种铸造及有色合金,2011,31(07):595-598.

Zhang Lijun1, Bai Yu1, Zhou Zhongbo1, et al. New VAR （Vacuum Arc Remelting） Process for TB8 Ti Alloy with High Molybdenum Content. [J]. Special Casting & Nonferrous Alloys 31(7):595-598(2011)
[1]张利军,白钰,周中波,刘娣,王幸运,薛祥义,常辉.高钼含量TB8钛合金新型VAR熔炼工艺[J].特种铸造及有色合金,2011,31(07):595-598. DOI：

Zhang Lijun1, Bai Yu1, Zhou Zhongbo1, et al. New VAR （Vacuum Arc Remelting） Process for TB8 Ti Alloy with High Molybdenum Content. [J]. Special Casting & Nonferrous Alloys 31(7):595-598(2011) DOI：

摘要

研究了高钼含量TB8钛合金新型VAR熔炼工艺

采用工业纯钼粉直接加入的工艺方法熔炼生产TB8钛合金铸锭

通过选用合适的原材料和合理的VAR工艺参数

成功的生产出TB8钛合金铸锭。经过不同部位成分分析、低倍金相观察、X射线试验

证明其成分均匀且不存在高熔点、高密度钼组元等夹杂、偏析缺陷。该新型工艺的原料成本、质量成本、生产成本都大幅低于传统工艺。

Abstract

New VAR process for preparing TB8 Ti alloy with high molybdenum content was presented. Firstly

commercial pure Mo powder was directly added into the alloy to prepare TB8 alloy ingot

and then based on using proper raw material and optimized VAR parameters

TB8 alloy ingot with high Mo content was prepared successfully. The alloy ingot was examined at different locations by composition testing and microstructure observation as well as XRD analysis. The results show that the alloy ingot exhibits homogeneous composition distribution

and the absence of inclusion and segregation of Mo element can be observed. The new VAR process is greatly superior to conventional process in raw material cost

quality cost and product cost.