New use of a nickel-based alloy

Abstract

The present disclosure relates to the use of a component manufactured of an aluminium alloyed nickel-based material in a molten salt environment, especially a carbonate salt environments.

1 . Use of a component containing a dispersion strengthened nickel-based alloy comprising the following in weight % (wt %):
 C 0.05-0.2;   Si max 1.5;   Mn max 0.5;   Cr 15-20;   Al 3-6;   Fe 15-25   Co max 10;   N 0.03-0.15;   O max 0.5;   one or more elements selected from the group consisting of Ta, Zr, Hf, Ti and Nb 0.25-2.5;   one or more elements selected from the group consisting of REM max 0.5;   balance Ni and normally occurring impurities in a molten carbonate salt mixture environment.   
     
     
         2 . The use according to  claim 1 , wherein the nickel-based alloy comprises 16-21.5 wt-wt % Fe. 
     
     
         3 . The use according to  claim 1 , wherein the nickel-based alloy comprises 17-20 wt-wt % Cr. 
     
     
         4 . The use according to  claim 1 , wherein the nickel-based alloy comprises max 0.3 wt-wt % Si. 
     
     
         5 . The use according to  claim 1 , wherein the nickel-based alloy comprises one or more elements selected from the group consisting of REM in a total content of 0.05-0.25 wt-wt %. 
     
     
         6 . The use according to  claim 1 , wherein the nickel-based alloy comprises one or more elements selected from the group consisting of Ta, Zr, Hf, Ti and Nb in a total content of 0.3-1.5 wt %. 
     
     
         7 . The use according to  claim 1 , wherein the nickel-based alloy comprises 52-62 wt-wt % Ni. 
     
     
         8 . The use according to  claim 1 , wherein the nickel-based alloy is manufactured from conventional metallurgical processes or from powder technology. 
     
     
         9 . The use according to  claim 1 , wherein the carbonate salt mixture is a LiNaK or a Li 2 CO 3 -Na 2 CO 3 -K 2 CO 3  salt mixture. 
     
     
         10 . The use according to  claim 1 , wherein the atmosphere of the environment consists of pure CO 2 . 
     
     
         11 . The use according to  claim 1 , wherein the component is selected from a tube, a strip, a plate, a wire or a coating. 
     
     
         12 . The use according to  claim 1 , wherein the component has any shape depending on where and how it will be used.