Global Patent Index - EP 1038983 A1

EP 1038983 A1 2000-09-27 - Single crystal nickel-base alloy

Title (en)

Single crystal nickel-base alloy

Title (de)

Monokristalline Legierung auf Nickelbasis

Title (fr)

Alliage monocristallin à base de nickel

Publication

EP 1038983 A1 (EN)

Application

EP 00106211 A

Priority

US 27685899 A

Abstract (en)

A single crystal casting is cast from a nickel base superalloy including Cr, Co, Mo, W, Ta, Al, Ti, Re and Hf as alloying elements with C increased effective to substantially reduce formation of a solidification-driven, as-cast eutectic/secondary phase scale metallurgically bonded to the casting when the alloy is cast as a single crystal and to reduce recrystallized grains when the casting is solution heat treated. <IMAGE>

IPC 1-7 (main, further and additional classification)

C22C 19/05; C30B 11/00; C30B 29/52

IPC 8 full level (invention and additional information)

B22D 21/00 (2006.01); B22D 27/04 (2006.01); C22C 19/03 (2006.01); C22C 19/05 (2006.01); C22F 1/00 (2006.01); C22F 1/10 (2006.01)

CPC (invention and additional information)

C22C 19/057 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1038983 A1 20000927; JP 2000312964 A 20001114; US 2002007877 A1 20020124; US 2004007296 A1 20040115

INPADOC legal status


2008-04-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20071002

2001-06-13 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB

2001-05-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010313

2000-09-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB

2000-09-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI