TY - JOUR
T1 - A new type metastable β titanium alloy Ti-B20 with high strength
AU - Ge, Peng
AU - Zhao, Yongqing
AU - Zhou, Lian
PY - 2005/5
Y1 - 2005/5
N2 - 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.
AB - 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.
KW - Aging treatment
KW - Critical moly equivalence
KW - High strength
KW - Metastable β Titanium alloy
UR - http://www.scopus.com/inward/record.url?scp=20444366975&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:20444366975
SN - 1002-185X
VL - 34
SP - 790
EP - 794
JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
IS - 5
ER -