Shaft of laser nitride-hardened surface on titanium

Details Shaft of laser nitride-hardened surface on titanium Shaft of laser nitride-hardened surface on titanium

1993-04-01

1994-07-19

Roy, Upendra

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

148206, 148525, 148527, 428627, C22C 1400

Patent

active

053305876

ABSTRACT:
A process for producing a crack-free, laser nitride-hardened layer on a titanium substrate, the process including preheating the substrate, melting a small area of substrate with a laser, and shrouding the melted area with a gas mixture having a maximum critical amount of nitrogen not greater than 85%. A crack-free pump shaft so hardened to Rockwell 52 C is produced.

REFERENCES:
patent: 1936294 (1933-11-01), Egan
patent: 1938566 (1933-12-01), Birkigt
patent: 3111434 (1963-11-01), Takao et al.
patent: 3585088 (1971-06-01), Schwuttke et al.
patent: 3677832 (1972-07-01), Van Thyne et al.
patent: 3841724 (1974-10-01), Calabrese
patent: 4059461 (1977-11-01), Fan et al.
patent: 4277320 (1981-07-01), Beguwala et al.
patent: 4298629 (1981-11-01), Nozaki et al.
patent: 4364969 (1982-12-01), Dearnalgy et al.
patent: 4434189 (1984-02-01), Saplatynsky
patent: 4474861 (1984-10-01), Ecer
patent: 4693760 (1987-09-01), Sioshansi
patent: 4753854 (1988-06-01), Gavrilov et al.
patent: 4895765 (1990-01-01), Sue et al.
patent: 4942059 (1990-07-01), Wilson
patent: 5035957 (1991-07-01), Bartlett et al.
patent: 5180448 (1993-01-01), Hyde et al.
patent: 5185211 (1993-02-01), Sue et al.
D'Anna et al Jour. Appl. Phys. 69 (Feb. 1991) 1687.
Fedirko et al Fiz. Khim. Mekh. Mater. 5 (1990) pp. 76-79 (Ukrainian).

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