Global Patent Index - EP 0222002 A4

EP 0222002 A4 19880928 - ALLOY TOUGHENING METHOD.

Title (en)

ALLOY TOUGHENING METHOD.

Title (de)

LEGIERUNGSVERSTÄRKUNGSVERFAHREN.

Title (fr)

PROCEDE DE RENFORCEMENT D'ALLIAGES.

Publication

EP 0222002 A4 19880928 (EN)

Application

EP 86903818 A 19860515

Priority

  • US 73556785 A 19850517
  • US 86054686 A 19860507

Abstract (en)

[origin: WO8606748A1] A method of treating a metallurgical object containing metastable featureless regions adversely affecting toughness, comprising heating the object for transforming the regions at least sufficiently out of their metastable state to improve toughness. A method of treating metal particles containing metastable featureless regions which adversely affect toughness when the particles are bonded together to form a metallurgical object, comprising heating the particles for transforming the regions at least sufficiently out of their metastable state to improve toughness in metallurgical objects formed by bonding the particles together.

IPC 1-7

C21D 1/34; C22C 21/00

IPC 8 full level

B22F 1/142 (2022.01); B22F 3/24 (2006.01); C21D 1/00 (2006.01); C22C 1/04 (2006.01)

CPC (source: EP US)

B22F 1/142 (2022.01 - EP US); B22F 3/24 (2013.01 - EP); C21D 1/00 (2013.01 - EP US); C22C 1/0416 (2013.01 - EP)

Citation (search report)

  • [Y] GB 2088409 A 19820609 - UNITED TECHNOLOGIES CORP
  • [AD] US 4379719 A 19830412 - HILDEMAN GREGORY J, et al
  • [A] EP 0136508 A2 19850410 - ALLIED CORP [US]
  • [YD] PROCEEDINGS OF THE 43RD ANNUAL MEETING ON THE ELECTRON MICROSCOPY SOCIETY OF AMERICA, 1985, pages 32,33, G.W. BAILEY Ed., San Francisco Press, Inc., San Francisco, CA, US; M.G. CHU et al.: "Microstructural evolution during solidification of Al-Fe-Ce powders"
  • [AD] MATERIALS RESEARCH SOCIETY SYMPOSIUM RPOCEEDINGS, vol. 28, 1984, pages 21-27, Elsevier Science Publishing Co., Inc., Amsterdam, NL; V. LAXMANAN: "Some fundamental considerations during rapid solidification processing"
  • See references of WO 8606748A1

Designated contracting state (EPC)

FR GB

DOCDB simple family (publication)

WO 8606748 A1 19861120; EP 0222002 A1 19870520; EP 0222002 A4 19880928; EP 0222002 B1 19920916

DOCDB simple family (application)

US 8601050 W 19860515; EP 86903818 A 19860515