EP 3533897 A1 20190904 - IMPROVEMENTS RELATING TO THE METAL ALLOY COMPONENTS AND THEIR MANUFACTURE
Title (en)
IMPROVEMENTS RELATING TO THE METAL ALLOY COMPONENTS AND THEIR MANUFACTURE
Title (de)
VERBESSERUNGEN IM ZUSAMMENHANG MIT METALLLEGIERUNGSKOMPONENTEN UND DEREN HERSTELLUNG
Title (fr)
AMÉLIORATIONS RELATIVES À DES COMPOSANTS D'ALLIAGE MÉTALLIQUE ET LEUR FABRICATION
Publication
Application
Priority
EP 18159319 A 20180228
Abstract (en)
A component comprising at least two different iron-based compositions in different regions of the component, including a first iron-based composition comprising 11.0-15.0 wt% chromium; 1.0-4.0 wt% nickel; 5.0-8.0 wt% cobalt; and iron. The first iron-based composition may also comprise 2.0-6.0 wt% copper, 4.0-7.0 wt% molybdenum and one or more of niobium, manganese, silicon, and phosphorous. The component may be a compressor aerofoil for a gas turbine. A metal injection moulding method for forming a component and an apparatus for carrying out said method are also provided. The composition of the component and/or the method and apparatus may provide a reduction in delta ferrite formation in the component and an improvement in mechanical properties of the component, particularly in relation to compressor aerofoils.
IPC 8 full level
C22C 38/02 (2006.01); B22F 3/22 (2006.01); B22F 5/04 (2006.01); B23P 15/04 (2006.01); C22C 38/04 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/52 (2006.01); F01D 5/00 (2006.01); F01D 5/28 (2006.01)
CPC (source: EP US)
B22F 3/225 (2013.01 - EP); B22F 5/04 (2013.01 - EP); B22F 7/06 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/40 (2013.01 - EP); C22C 38/42 (2013.01 - EP); C22C 38/44 (2013.01 - EP); C22C 38/48 (2013.01 - EP); C22C 38/52 (2013.01 - EP US); F01D 5/28 (2013.01 - EP); B22F 2998/10 (2013.01 - EP); F05D 2230/21 (2013.01 - EP); F05D 2230/22 (2013.01 - EP); F05D 2300/11 (2013.01 - EP); F05D 2300/132 (2013.01 - EP)
Citation (search report)
- [XAI] JP 2000192196 A 20000711 - SUMITOMO METAL IND
- [XAI] US 2016273587 A1 20160922 - BESWICK JOHN [NL], et al
- [A] EP 3061841 A1 20160831 - GEN ELECTRIC [US]
- [A] EP 2516107 A1 20121031 - SNECMA [FR]
- [A] US 2007202000 A1 20070830 - ANDREES GERHARD [DE], et al
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)
DOCDB simple family (application)
EP 18159319 A 20180228; EP 2019053857 W 20190215