Case-hardened titanium aluminide bearing

Details Case-hardened titanium aluminide bearing Case-hardened titanium aluminide bearing

1992-06-16

1996-05-21

Turner, A. A.

Stock material or miscellaneous articles

Composite

Of metal

384 23, 384 95, 384125, 384261, 384492, 384615, 384912, 428457, 428698, 428701, 428704, B32B 1504, F16C 3300

Patent

active

055188206

ABSTRACT:
A bearing includes a bearing component, such as a bearing race, having a bearing contact surface. A region at the bearing contact surface is made of titanium aluminide, preferably an alpha-2 or gamma titanium aluminide. A case-hardened layer present at the surface of the titanium aluminide region increases the hardness and wear resistance of the titanium aluminide at elevated temperature. The case-hardened layer is preferably formed by diffusing carbon into the surface of the titanium aluminide from a gaseous medium, at elevated temperature land at ambient or reduced pressure.

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patent: 5145530 (1992-09-01), Cassady
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patent: 5161898 (1992-11-01), Drake

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