Wear-resistant titanium or titanium-alloy member and a method fo

Details Wear-resistant titanium or titanium-alloy member and a method fo Wear-resistant titanium or titanium-alloy member and a method fo

1988-09-06

1990-02-20

Kastler, S.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148903, 148421, C22C 1400

Patent

active

049023594

ABSTRACT:
A wear-resistant titanium or titanium-alloy member adapted for use as a poppet valve, rocker arm, etc., of an internal combustion engine, which requires lightness in weight and good wear resistance, and a method for manufacturing the member. The surface of the titanium or titanium-alloy member is given a Vickers hardness number of 390 to 1,200, preferably 400 to 800, and a hardened layer depth of 0.1 to 2.0 mm, preferably 0.3 to 1.5 mm, by being melt-hardened while being supplied with hardening elements.

REFERENCES:
patent: 3963525 (1976-06-01), Bomberger, Jr. et al.
patent: 4104505 (1978-08-01), Rayment et al.
patent: 4157923 (1979-06-01), Yen et al.
patent: 4695329 (1987-09-01), Hayashi et al.

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