Metal treatment – Stock – Titanium – zirconium – or hafnium base
Patent
1997-03-14
2000-08-29
Ip, Sikyin
Metal treatment
Stock
Titanium, zirconium, or hafnium base
148407, 192107M, F16D 6514, C22C 1400, C22F 116
Patent
active
061103039
ABSTRACT:
A brake rotor in which deformation against thermal stress is reduced, thereby preventing a surface layer from being cracked or peeled upon operation of the brake rotor at a high temperature. A titanium alloy is heat-treated at a .beta. phase transformation temperature and is quenched, so that grains of the alloy are equiaxed up to sizes ranging from 300 .mu.m to 4 mm, whereby deformation against thermal stress is significantly improved.
REFERENCES:
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patent: 5068003 (1991-11-01), Takahashi et al.
patent: 5526914 (1996-06-01), Dwivedi et al.
Brown, C. W.; Smith, G. C., The effect of rest periods on the fatigue strength of Ti-6A1-4V, Fatigue Eng. Mater. Struct. (1984), 7(2), 155-64 (abstract only).
Patent Abstract of Japan M-1395, "Disk Rotor" , vol. 17, No. 186, Apr. 12, 1993 (JP4-337127A).
Eylon, D. et al., "High-Temperature Titanium Alloys--A Review", Journal of Metals, pp. 55-62, Nov. 1984.
Peters, M., "Neuere Entwicklungen auf dem Gebiet det Titan-Legierungen", Metall, vol. 37, No. 6, pp. 584-588, Jun. 1983.
Hagiwara Yoshitoshi
Takahashi Kyo
Yoshida Masahiro
Honda Giken Kogyo Kabushiki Kaisha
Ip Sikyin
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