Turbine blade and a method for its production

US6402476B1 · kind B1 · utility

Assignee

• ALSTOM Holdings · FR

Inventors

• Hans-Peter Bossmann · Lauchringen, DE
• Otto Bernhardi · Bad Schönborn, DE
• Hans Joachim Schmutzler · Maikammer, DE
• Harald Reiss · Heidelberg, DE
• Raiko Milanovic
• Ludwig Weiler · Heidelberg, DE
• Christoph Sommer · Plankstadt, DE
• Marianne Sommer · Walldorf, DE

Key dates

• Filing date: Jul 24, 2000
• Grant date: Jun 11, 2002
• Expiry date: Jul 24, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01D5/286
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A turbine blade and a method for its production. In order to protect the turbine blade from being damaged by particles carried in the gas, surfaces of the turbine blade are melted down to a predetermined depth in order to form a defined amorphous region on a crystalline structure of a base material. The surfaces are then cooled down at a predetermined temperature reduction rate per unit time.