Patent · US Active

Brazing composition and brazing method for superalloys

US7946471B2 · kind B2 · utility

0Cited by

5References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Brigitte Heinecke · Wetter (Ruhr), DE
Volker Vosberg · Wetter (Ruhr), DE

Key dates

Filing date	Feb 6, 2007
Grant date	May 24, 2011
Priority date	—
Expiry date	Feb 6, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K35/304
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A brazing composition for the brazing of superalloys including a base material with at least one initial phase is provided. The initial phase has a solidus temperature that is below the solidus temperature of the base material and, above a certain temperature, forms with the base material and/or with at least one further initial phase at least one resultant phase, the solidus temperature of which is higher that the solidus temperature of the initial phases. Heat treatment takes place in two stages, wherein the temperature of the second heat treatment is preferably 800-1200° C. The brazing composition may likewise be of the type MCrAlX, and the power particles of the initial phase may be in the form of nanoparticles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.