US2013243642A1PendingUtilityA1

Metallic bondcoat or alloy with a high gamma/gamma' transition temperature and a component

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Assignee: KULKARNI ANAND APriority: Nov 24, 2010Filed: Nov 7, 2011Published: Sep 19, 2013
Est. expiryNov 24, 2030(~4.4 yrs left)· nominal 20-yr term from priority
Inventors:Anand A. KulkarniJonathan E. Shipper, Jr.Werner Stamm
C22C 30/00C22C 19/057C22C 19/056C22C 19/055C22C 19/07C23C 4/073Y02T50/60
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Claims

Abstract

A metallic coating or alloy is provided, which is nickel based, and includes at least γ and γ′ phases. The metallic coating or the alloy further includes tantalum (Ta) in the range of between 4 wt % to 7.5 wt %. The metallic coating or the alloy also includes cobalt (Co) in the range between 11 wt %-14.5 wt %.

Claims

exact text as granted — not AI-modified
1 - 15 . (canceled) 
     
     
         16 . A metallic coating or alloy,
 wherein the metallic coating or alloy is nickel based,   wherein the metallic coating or alloy comprises at least γ and γ′ phases,   wherein the metallic coating or the alloy further comprises tantalum (Ta) in the range of between 4 wt % to 7.5 wt %,   wherein the metallic coating or the alloy further comprises cobalt (Co) in the range between 11 wt %-14.5 wt %.   
     
     
         17 . The metallic coating or alloy according to  claim 16 , wherein the amount of tantalum (Ta) is in the range between 5 wt % and 6.8 wt %. 
     
     
         18 . The metallic coating or alloy according to  claim 17 , wherein the amount of tantalum (Ta) is 6 wt %. 
     
     
         19 . The metallic coating or alloy according to  claim 16 , wherein the amount of cobalt (Co) is in the range between 12 wt %-14 wt %. 
     
     
         20 . The metallic coating or alloy according to  claim 19 , wherein the amount of cobalt (Co) is 13 wt %. 
     
     
         21 . The metallic coating or alloy according to  claim 16 , wherein the metallic coating or alloy contains no Yttrium (Y) and/or no platinum (Pt) and/or no melting depressant. 
     
     
         22 . The metallic coating or alloy according to  claim 16 , further comprising chromium (Cr), wherein the amount of chromium (Cr) is between 14 t %-16 wt %. 
     
     
         23 . The metallic coating or alloy according to  claim 16 , further comprising aluminum, wherein the amount of aluminum (Al) is between 9 wt %-13 wt %. 
     
     
         24 . The metallic coating or alloy according to  claim 16 , further comprising yttrium, wherein the amount of yttrium (Y) is between 0,1 wt %-0,7 wt %. 
     
     
         25 . The metallic coating or alloy according to  claim 16 , wherein the metallic coating or the alloy contains no rhenium (Re). 
     
     
         26 . The metallic coating or alloy according to  claim 16 , wherein the metallic coating or the alloy contains 0.1 wt % to 2 wt % rhenium (Re). 
     
     
         27 . The metallic coating or alloy according to  claim 16 , wherein the metallic coating or the alloy is a MCrAlY alloy with M=nickel (Ni) and/or M=cobalt (Co). 
     
     
         28 . The metallic coating or alloy according to  claim 16 , wherein the metallic coating or alloy has higher γ′/γ transition compared to an NiCoCrAlY alloy or coating with rhenium (Re) and without tantalum (Ta). 
     
     
         29 . The metallic coating or alloy according to  claim 16 , which contains no silicon (Si), and/or no hafnium (Hf) and/or no zirconium (Zr) and/or no tungsten (W). 
     
     
         30 . The metallic coating or alloy according to  claim 16 , further comprising a β-phase. 
     
     
         31 . The metallic coating or alloy according to  claim 16 , wherein the metallic coating or alloy comprises aluminum (Al) and chromium (Cr) in addition to nickel (Ni), cobalt (Co) and tantalum (Ta). 
     
     
         32 . The metallic coating or alloy according to  claim 27 , further comprising yttrium (Y). 
     
     
         33 . The metallic coating or alloy according to  claim 16 , wherein the metallic coating or alloy contains no iron (Fe). 
     
     
         34 . A component, comprising:
 a metallic coating according to  claim 16 .

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