ONE-STEP NOBLE METAL-ALUMINIDE COATINGS

Title:

ONE-STEP NOBLE METAL-ALUMINIDE COATINGS

Document Type and Number:

WIPO Patent Application WO2001005579

Kind Code:

A3

Abstract:

A one-step method of forming diffused noble metal-aluminide coatings with or without minor incorporations of Si, Cr, Mn, Hf, La, and Y, is disclosed. With the inventive method, two or more powdered metals or metal alloys are applied and diffused into the metal substrate together, using a sequential multi-stage heating process. This method contrasts with the prior art technology where metals were applied and diffused into the substrate separately. Figure 8 is a schematic view (partly broken away and in section) of a typical turbine blade carrying a coating of the subject diffused platimum-aluminide coating. Turbine blade (10) includes a nickel- or cobalt-alloy body portion (12) provided with a diffused aluminide coating (14). It is usually undesirable to provide the subject coating over the fastening portion (16) of the blade (10).

More Like This:

WO/2014/163676	COMPLIANT COMPOSITE COMPONENT AND METHOD OF MANUFACTURE
JP2006131997	METHOD FOR REPAIRING WORKPIECE
JP5550699	The member for gas turbines

Inventors:

CREECH GEORGE E (US)
NAIK SUBHASH K (US)
KORINKO PAUL S (US)

Application Number:

PCT/US2000/019321

Publication Date:

May 10, 2001

Filing Date:

July 17, 2000

Export Citation:

Click for automatic bibliography generation Help

Assignee:

ALLISON ENGINE CO INC (US)
CREECH GEORGE E (US)
NAIK SUBHASH K (US)
KORINKO PAUL S (US)

International Classes:

F01D5/28; B22D19/00; B22D19/08; B22D19/16; B22F7/04; C22C5/04; C22C21/00; C23C10/52; C23C10/58; C23C24/10; C23C26/00; C23C26/02; F02C7/00; (IPC1-7): B32B15/01; B32B15/02

Foreign References:

US5057196A	1991-10-15
US5958204A	1999-09-28

Other References: