EP 3543368 A1 20190925 - HIGH-ENTROPY ALLOYS FOR COVERING COMPONENTS
Title (en)
HIGH-ENTROPY ALLOYS FOR COVERING COMPONENTS
Title (de)
HOCH-ENTROPIE-LEGIERUNGEN FÜR VERKLEIDUNGSKOMPONENTEN
Title (fr)
ALLIAGES A HAUTE ENTROPIE POUR COMPOSANTS D'HABILLAGE
Publication
Application
Priority
EP 18162716 A 20180320
Abstract (en)
[origin: JP2019163535A] To provide a high entropy alloy having a composition suitable for an exterior component.SOLUTION: A high entropy alloy contains 4 to 9 major alloy forming elements, in which 3 major alloy forming elements of Cr, Fe and V have atom fraction of 20 to 40% respectively, one or two major alloy forming element selected from Al and Si have atom fraction of 5% or more respectively, total atom fraction of these 2 major alloy forming elements is 25% or less, 0, 1, 2, 3 or 4 major alloy forming element selected from Mn, Mo, Ti and Ni have atom fraction of 5% or more respectively, total atom fraction of these 4 major alloy forming elements is 35% or less, total atom fraction of all of the 4 to 9 major alloy forming elements is 80% or more, and the balance formed by impurities and/or one or a plurality of minor alloy forming elements with atom fraction of less than 5% respectively.SELECTED DRAWING: Figure 1
Abstract (fr)
L'invention concerne un alliage à haute entropie avec une composition contenant entre 4 et 9 éléments principaux choisis parmi la liste constituée du Cr, Fe, V, Al, Si, Mn, Mo, Ti et Ni avec:- 3 éléments principaux qui sont le Cr, Fe et le V ayant chacun une concentration atomique comprise entre 20 et 40%,- 1 ou 2 éléments principaux choisis parmi l'Al et le Si ayant chacun une concentration atomique supérieure ou égale à 5% avec une concentration totale pour ces 2 éléments principaux inférieure ou égale à 25%,- 0, 1, 2, 3 ou 4 éléments principaux choisis parmi le Mn, Mo, Ti et le Ni ayant chacun une concentration atomique supérieure ou égale à 5% avec une concentration atomique totale pour ces 4 éléments principaux inférieure ou égale à 35%,la concentration atomique totale pour les 4 à 9 éléments principaux étant supérieure ou égale à 80%,le solde étant composé d'impuretés éventuelles et/ou d'un ou plusieurs éléments mineurs ayant chacun une concentration atomique inférieure à 5%.
IPC 8 full level
C22C 38/18 (2006.01); C22C 38/24 (2006.01); C22C 45/00 (2006.01); C22C 45/08 (2006.01)
CPC (source: CN EP KR US)
C22C 30/00 (2013.01 - CN US); C22C 30/02 (2013.01 - CN); C22C 30/04 (2013.01 - CN); C22C 30/06 (2013.01 - CN); C22C 38/18 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/44 (2013.01 - KR); C22C 38/46 (2013.01 - KR); C22C 38/50 (2013.01 - KR); C22C 38/58 (2013.01 - KR); C22C 45/006 (2013.01 - EP US); C22C 45/008 (2013.01 - EP US); C22C 45/08 (2013.01 - EP US); C22F 1/02 (2013.01 - CN); G04B 37/00 (2013.01 - CN)
Citation (search report)
- [A] CN 102776430 A 20121114 - UNIV TAIYUAN TECHNOLOGY
- [A] MATHILDE LAURENT-BROCQ ET AL: "Journées Annuelles SF2M 2017", ALLIAGES MÉTALLIQUES À HAUTE ENTROPIE, January 2017 (2017-01-01), Thiais, france, XP055505576
- [A] YE Y F ET AL: "High-entropy alloy: challenges and prospects", MATERIALS TODAY, ELSEVIER, AMSTERDAM, NL, vol. 19, no. 6, 20 December 2015 (2015-12-20), pages 349 - 362, XP029663389, ISSN: 1369-7021, DOI: 10.1016/J.MATTOD.2015.11.026
- [A] LU Z P ET AL: "An assessment on the future development of high-entropy alloys: Summary from a recent workshop", INTERMETALLICS, ELSEVIER SCIENCE PUBLISHERS B.V, GB, vol. 66, 3 July 2015 (2015-07-03), pages 67 - 76, XP029255191, ISSN: 0966-9795, DOI: 10.1016/J.INTERMET.2015.06.021
- [A] XIAOZHI LIM: "Metal Mixology, Stronger, Tougher, Stretchier", NATURE, vol. 533, 19 May 2016 (2016-05-19), GB, pages 306 - 307, XP055507305, ISSN: 0028-0836
- [A] S. RANGANATHAN: "Alloyed pleasures: Multimetallic cocktails", CURRENT SCIENCE, vol. 85, no. 5, 25 November 2003 (2003-11-25), pages 1404 - 1406, XP055505587
- [A] ASHLEY G: "Patentability of alloys at the European Patent Office", INTELLECTUAL PROP, BIRMINGHAM, GB, vol. 2, no. 3, May 1997 (1997-05-01), pages 3 - 6, XP007922941, ISSN: 1361-5793
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3543368 A1 20190925; EP 3543368 B1 20200805; CN 110306094 A 20191008; JP 2019163535 A 20190926; JP 6802866 B2 20201223; KR 102180486 B1 20201119; KR 20190110432 A 20190930; US 2019292633 A1 20190926
DOCDB simple family (application)
EP 18162716 A 20180320; CN 201910207000 A 20190319; JP 2019019528 A 20190206; KR 20190017908 A 20190215; US 201916271925 A 20190211