08-09-2010 дата публикации
Номер: CN0101503771B
Автор:
LUO XINGZHENG,
LI XINGWU,
LOU RUIXIANG,
YANG ZHI,
SHA AIXUE,
JI BO,
ZHU FENG,
WANG QINGRU,
XINGZHENG LUO,
XINGWU LI,
RUIXIANG LOU,
ZHI YANG,
AIXUE SHA,
BO JI,
FENG ZHU,
QINGRU WANG
Принадлежит:
The invention relates to titanium alloy with high strength and high through hardening, namely Ti-5.5Al-4Mo-6V-2Nb-1Fe alloy. The alloy belongs to transitional alpha-beta titanium alloy, wherein the nominal aluminum equivalent is 5.5 and the molybdenum equivalent is approximately 11. The Ti-5.5Al-4Mo-6V-2Nb-1Fe alloy is characterized by comprising the following chemical compositions in percentage by mass: 5.0 to 6.2 percent of aluminum, 3.5 to 4.5 percent of molybdenum, 5.5 to 6.5 percent of vanadium, 1.5 to 2.5 percent of niobium, 0.5 to 1.5 percent of iron, less than or equal to 0.05 percentof carbon, less than or equal to 0.13 percent of oxygen, less than or equal to 0.05 percent of nitrogen, less than or equal to 0.015 percent of hydrogen, and the balance of titanium. The alloy has superior comprehensive properties of high strength, high through hardening, high toughness and high weldability. After complex duplex annealing of alloy forgings, the tensile strength index reaches 1,150 MPa ...
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