TY - JOUR
T1 - Effect of heat treatment on microstructure and mechanical properties of a new type metastable beta titanium alloy
AU - Ge, Peng
AU - Zhao, Yongqing
AU - Zhou, Lian
PY - 2004/9
Y1 - 2004/9
N2 - The microstructure and tensile/impact properties of a new type metastable beta titanium alloy (insert composition here, Ti-B20) under different heat treatment conditions were studied. The results show that the variation of heat treatment conditions has a significant influence on the strengthening behavior of this alloy. Solution heat treatment temperature governs the ductility of alloy after aging; on the other hand, the aging temperature is important for controlling strength. The lower the aging temperature, the finer the precipitate, and the greater the strength of alloy. However, large grain size and continuous grain boundaries combine to produce stress concentrations, thus lowering the plasticity and impact value of alloy after β solution and aging treatment. A good combination of strength-ductility and impact toughness can be achieved by solution treated below the β transus temperature following by aging at appropriate temperatures in the range of 550°C to 600°C.
AB - The microstructure and tensile/impact properties of a new type metastable beta titanium alloy (insert composition here, Ti-B20) under different heat treatment conditions were studied. The results show that the variation of heat treatment conditions has a significant influence on the strengthening behavior of this alloy. Solution heat treatment temperature governs the ductility of alloy after aging; on the other hand, the aging temperature is important for controlling strength. The lower the aging temperature, the finer the precipitate, and the greater the strength of alloy. However, large grain size and continuous grain boundaries combine to produce stress concentrations, thus lowering the plasticity and impact value of alloy after β solution and aging treatment. A good combination of strength-ductility and impact toughness can be achieved by solution treated below the β transus temperature following by aging at appropriate temperatures in the range of 550°C to 600°C.
KW - Heat treatment
KW - Metastable β titanium alloy
KW - Microstructure
KW - Tensile and impact properties
UR - http://www.scopus.com/inward/record.url?scp=8844226115&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:8844226115
SN - 1002-185X
VL - 33
SP - 968
EP - 971
JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
IS - 9
ER -