Component with a reinforcing plating

Abstract

A component, in particular a rotor blade of a gas turbine, having a blade tip plating, the plating including a cover layer that is formed of abrasive particles embedded in a metallic matrix material, and the cover layer being applied onto a surface of the component with the intermediate situation of a metallic bonding layer, wherein the metallic bonding layer is fashioned as a bonding layer applied to the component by high-speed flame spraying, and that the metallic matrix material of the cover layer is galvanically deposited.

1 . A component, in particular a rotor blade of a gas turbine, comprising: a blade tip plating, said plating including a cover layer that is formed of abrasive particles embedded in a metallic matrix material, and the cover layer being applied onto a surface of the component with the intermediate situation of a metallic bonding layer,
 wherein   the metallic bonding layer is fashioned as a bonding layer applied to the component by high-speed flame spraying, and that the metallic matrix material of the cover layer is galvanically deposited.   
   
   
       2 . The component as recited in  claim 1 ,
 wherein   the metallic matrix material of the cover layer is made of a MCrAlY material,or includes a MCrAlY material.   
   
   
       3 . The component as recited in  claim 2 ,
 wherein   the metallic matrix material of the cover layer is made of a MCrAlY material and has the following composition:   14-22% by weight chromium (Cr),   6-14% by weight cobalt (Co),   4-9% by weight aluminum (Al),   5-8% by weight tantalum (Ta),   1-3% by weight rhenium (Re),   0.5-1% by weight hafnium (Hf),   0.5-1.5% by weight silicon (Si),   0.3-1% by weight yttrium (Y),   the remainder being in nickel.   
   
   
       4 . The component as recited in  claim 3 ,
 wherein   the MCrAlY material has the following composition:   18% by weight chromium (Cr),   10% by weight cobalt (Co),   6.5% by weight aluminum (Al),   6% by weight tantalum (Ta),   2% by weight rhenium (Re),   0.5% by weight hafnium (Hf),   1% by weight silicon (Si),   0.3% by weight yttrium (Y),   the remainder being nickel.   
   
   
       5 . The component as recited in  claim 1 ,
 wherein   the metallic bonding layer is made of a MCrAlY material and has the following composition:   14-22% by weight chromium (Cr),   6-14% by weight cobalt (Co),   4-9% by weight aluminum (Al),   5-8% by weight tantalum (Ta),   1-3% by weight rhenium (Re),   0.5-1% by weight hafnium (Hf),   0.5-1.5% by weight silicon (Si),   0.3-1% by weight yttrium (Y),   the remainder being nickel.   
   
   
       6 . The component as recited in  claim 5 ,
 wherein   the MCrAlY material has the following composition:   18% by weight chromium,   10% by weight cobalt (Co),   6.5% by weight aluminum (Al),   6% by weight tantalum (Ta),   2% by weight rhenium (Re),   0.5% by weight hafnium (Hf),   1% by weight silicon (Si),   0.3% by weight yttrium (Y),   the remainder being nickel.   
   
   
       7 . The component as recited in  claim 1 ,
 wherein   the abrasive particles of the cover are made of cubic boron nitride.