Metal treatment – Compositions – Fluxing
Patent
1994-03-30
1995-06-27
Roy, Upendra
Metal treatment
Compositions
Fluxing
148537, 4272481, 427250, C22C 1400, C21D 900
Patent
active
054276314
ABSTRACT:
Objects of titanium or titanium alloys having the surface converted to a hard and wear-resistant nitride layer with good adhesion, which is distributed uniformly and also provides internal capillaries. The objects are produced by being treated in a vacuum furnace with an atmosphere of pure nitrogen gas at a temperature of 650.degree.-1000.degree. C. and at a pressure below atmospheric pressure. The thickness of the nitride layer can be controlled by controlling the treatment time and temperature.
REFERENCES:
patent: 3643658 (1972-02-01), Steinemenan
patent: 4511411 (1985-04-01), Brunner et al.
patent: 4693760 (1987-09-01), Sioshansi
patent: 4790851 (1988-12-01), Suire et al.
patent: 5152774 (1992-10-01), Schroeder
patent: 5152794 (1992-10-01), Davidson
patent: 5192323 (1993-03-01), Shetty et al.
Dion et al Biomaterials vol. 14(3) (Feb. 1993) 169.
Johansson et al Jour. Mat. Sc.: Mat. in Medicine, 4 (1993) 132.
Raveh et al Thin Solid Films 186 (1990) 241.
Grill et al Surf. & Coat. Tech. 43/4 (1990) 745.
Peterson et al Jour. Biomed. Mat. Res. 22 (1988) 887.
Metin et al Met. Trans. 20A (1989) 1819.
Konuma et al Jour. Less-Comm. Metals 52 (1977) 145.
Dion et al Biomaterials, 14(9) (Jul. 1993) 712.
Johansson Erik
Westberg Helena
Roy Upendra
Ytbolaget I Uppsala Aktiebolag
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