Patent ID: 9156086
Filing Date: 2015-10-13
Classification: B22C,B22D,C22C,F01D,F05D,Y10T

Abstract:
1. A vane segment comprising; an airfoil comprising an airfoil structural material; and a shroud segment comprising a shroud heat resistant material and a cast shroud structural material underlying and providing structural support for the shroud heat resistant material, wherein the shroud heat resistant material is discrete from the airfoil structural material, wherein the shroud heat resistant material is set apart from the shroud structural material by not more than a layer of oxides therebetween, wherein the shroud structural material is discrete from, cast around, and secured to an end of the airfoil structural material and acts as a monolithic interlock between the airfoil structural material and the shroud heat resistant material, and wherein a joint between the shroud structural material and the airfoil structural material is free of metallurgical bonds.