Stabilisation Treatment of Titanium Alloy VT9

Defence Science Journal

P.N. Singh²  V. Singh²  B.K. Singh²  C. Ramachandra¹ 

[1] Hindustan Aeronautics Ltd., Bangalore.;Institute of Technology, Banaras Hindu University, Varanasi

关键词: Ageing treatment;    Tensile properties;    Tensile strength values;    Tensile strength;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

Systematic investigations of tensile properties of alpha + beeta type high temperature Ti alloy VT9 (Ti-6 Al-3.3 Mo-1.65 Zr-0.3 Si wt. per cent) developed on ageing at 803, 823 and 853 K for 2, 6 and 121 hr, respectively following the solution treatment in alpha + beeta phase field at 1233 K for 1 hr and air cooling, show that the highest tensile strength values are obtained on ageing at 823 K for 6 or 12 hr. In view of the shorter duration of ageing, the ageing treatment at 823 K for 6 hr is considered appropriate stabilisation treatment for this alloy. The tensile strength values of the alloy VT9 from the newly-established stabilisation treatment are considerably higher than those resulting from the earlier reported stabilisation treatment (at 803 K for 6 hr), in particular at room temperature.

【 授权许可】

Unknown