Patent · US Active

Heat treatment method for monocrystalline or directionally solidified structural components

US7892370B2 · kind B2 · utility

7Cited by

5References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Ott · Wetter (Ruhr), DE
Uwe Paul · Ratingen, DE

Key dates

Filing date	Apr 28, 2005
Grant date	Feb 22, 2011
Priority date	—
Expiry date	Mar 25, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2221/00
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a heat treatment method for monocrystalline or directionally solidified structural components. Said method comprises a heat treatment which results in dissolving at least one crystalline phase of the material of the structural component, referred to in the following as component material. The inventive method is characterized by carrying out the heat treatment by heating the structural component to a dissolution temperature required for dissolving the crystalline phase only in at least one first component area in which the stresses within the component material do not exceed a predetermined value. In at least one second component area in which the stresses within the component material exceed the predetermined value the material is only heated to a temperature below the dissolution temperature.

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