Patent ID: 6056507
Filing Date: 2000-05-02
Classification: B23K,C25D,F01D,Y10T

Abstract:
An article including a body having a hollow interior and an open end comprising a wall of a Ni base superalloy which includes at least about 5 weight % total of at least one element selected from the group consisting of Al and Ti, the wall having an inner wall surface which defines at least a portion of the open end, and an end plate bridging at least a portion of the open end, the end plate including a plate rim shaped to match with at least a portion of the inner wall surface and brazed with the inner wall surface with a Ni base brazing alloy at a brazed joint between the plate rim and the inner wall surface, the improvement wherein:the brazed joint includes less than about 20 volume % oxides; and,the plate rim at the brazed joint is substantially Ni along with elements diffused from the brazing alloy and the end plate.