A new type metastable β titanium alloy Ti-B20 with high strength

Peng Ge, Yongqing Zhao, Lian Zhou

科研成果: 期刊稿件文章同行评审

13 引用 (Scopus)

摘要

According to the principle of 'critical moly equivalence and multicomponent strengthening', a new type metastable beta titanium alloy with high strength was designed, and the tensile properties at room temperature and microstructure on hot rolled bar (φ 12 mm - 20 mm) of this alloy under different heat treatment conditions were studied. Compared with traditional metastable β titanium alloys, it's ageing response is fast, the distribution of dispersion phase is uniform, the hardening effect is high and no precipitate-free regions have been found during high temperature ageing treatment. Solution treatment below beta transus followed by ageing is suitable for keeping high plasticity. In this case, excellent strength/plasticity properties can be achieved (UTS: 1200 MPa - 1500 MPa; EL: 8% - 18%) by 500°C -600°C aging treatment. However, much higher strengthening effect can be obtained by direct ageing on hot rolled bar.

源语言英语
页(从-至)790-794
页数5
期刊Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
34
5
出版状态已出版 - 5月 2005
已对外发布

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