Global Patent Index - EP 0805223 B1

EP 0805223 B1 20010711 - Heat treatment process for nickel base superalloy material

Title (en)

Heat treatment process for nickel base superalloy material

Title (de)

Wärmebehandlungsverfahren für Werk stoffkörper aus Nickel-Basis-Superlegierungen

Title (fr)

Procédé de traitement thermique pour matériau en superalliage à base de nickel

Publication

EP 0805223 B1 20010711 (DE)

Application

EP 97810201 A 19970407

Priority

DE 19617093 A 19960429

Abstract (en)

[origin: CA2202331A1] In a heat treatment process for material bodies made of nickel base superalloys, in particular for monocrystals made of nickel base superalloys, the heat treatment of the material body comprises the following steps: annealing at 850.degree.C to 1100.degree.C, heating to 1200.degree.C, heating to a temperature of 1200.degree.C < T ~ 1300.degree.C at a heat-up rate of less than or equal to 1.degree.C/min, and a multistage homogenization and dissolution process at a temperature of 1300.degree.C ~ T ~ 1315.degree.C.

IPC 1-7

C30B 33/00; C22F 1/10

IPC 8 full level

C22F 1/00 (2006.01); C22C 19/05 (2006.01); C22F 1/10 (2006.01); C30B 33/00 (2006.01)

CPC (source: EP US)

C22C 19/057 (2013.01 - EP US); C22F 1/10 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE ES FR GB SE

DOCDB simple family (publication)

DE 19617093 A1 19971030; DE 19617093 C2 20031224; CA 2202331 A1 19971029; CA 2202331 C 20070109; DE 59703990 D1 20010816; EP 0805223 A1 19971105; EP 0805223 B1 20010711; ES 2161427 T3 20011201; JP 3950513 B2 20070801; JP H1046303 A 19980217; US 5882446 A 19990316

DOCDB simple family (application)

DE 19617093 A 19960429; CA 2202331 A 19970410; DE 59703990 T 19970407; EP 97810201 A 19970407; ES 97810201 T 19970407; JP 12471197 A 19970430; US 84364297 A 19970410