Monokristalline Superlegierung auf Nickelbasis,insbesondere für Turbinenschaufeln von Raketentriebwerken, und Herstellungsverfahren
摘要
The nickel-based monocrystalline superalloy adapted especially for the manufacture of turbine blades of cryotechnical rocket-engine turbopumps, exhibits the following weight composition in %: Fe: 22 to 28 % Cr: 7 to 9 % Ti: 3 to 5 % Al: 3 to 5 % Nb: 0.5 to 2 % Mo: 2 to 4 % Si: 0 to 0.5 % Ni: remainder to 100 %. The other elements being optionally present only in the form of impurities. The alloy exhibits in particular a good behaviour towards heat shocks and a low sensitivity to embrittlement by gaseous hydrogen.
申请公布号
DE69315475(D1)
申请公布日期
1998.01.15
申请号
DE1993615475
申请日期
1993.05.11
申请人
SOCIETE EUROPEENNE DE PROPULSION, SURESNES, FR
发明人
CORNU, DANIEL A., F-27200 VERNON, FR;DE MONICAULT, JEAN-MICHEL, F-27720 CROISY S/EURE, FR;CARON, PIERRE, F-91940 LES ULIS, FR;KHAN, TASADDUQ, F-78350 JOUY-EN-JOSAS, FR