Metal treatment – Compositions – Heat treating
Patent
1990-03-16
1992-03-03
Dean, W.
Metal treatment
Compositions
Heat treating
148133, C22F 118
Patent
active
050929402
ABSTRACT:
In the production of titanium and (.alpha.+.beta.)-type titanium alloy materials, a material hydrogenated in an amount of 0.02 to 2% by weight of hydrogen is worked at a temperature of 450.degree. to 900.degree. C. at a reduction of more than 60%, and the material is dehydrogenated and annealed in vacuum. The working of the titanium material is carried out at 450.degree. to 800.degree. C., and the working of the (.alpha.+.beta.)-type titanium alloy material is carried out at 550.degree. to 900.degree. C. Furthermore, in the production of titanium, .alpha.-type titanium alloy, and (.alpha.+.beta.)-type titanium alloy materials, a material hydrogenated in an amount of 0.02 to 2% by weight of hydrogen is subjected to a heat treatment wherein the material is heated at a temperature not lower than the .beta. transformation temperature and then cooled, the material is worked at a temperature of 450.degree. to 950.degree. C. at a reduction not lower than 20%, the material is dehydrogenated and annealed in the vacuum, the working of the titanium material is carried out at 450.degree. to 800.degree. C., the working of the .alpha.-type titanium alloy material is carried out at 600.degree. to 950.degree. C., and the working of the (.alpha.+.beta.)-type titanium alloy material is carried out at 550.degree. to 900.degree. C.
REFERENCES:
patent: 2892742 (1959-06-01), Zwicker et al.
patent: 4415375 (1983-11-01), Lederich et al.
patent: 4680063 (1987-07-01), Vogt et al.
W. R. Kerr et al. "Hydrogen as an alloying element in titanium" pp. 2477-2486, Titanium '80.
N. C. Birla et al. "Anisotropy control through the use of hydrogen in Ti-6Al-4V alloy" Transactions of the Indian Institute of Metals, vol. 37, No. 5, Oct. 1984, pp. 631-635.
European Search Report, EP 90105106.
Hayashi Masayuki
Ishii Mitsuo
Kimura Kinichi
Takamura Jin
Yoshimura Hirofumi
Dean W.
Koehler Robert R.
Nippon Steel Corporation
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