TURBINE BLADE WITH INCREASE TIP LIFETIME AND A METHOD FOR MANUFACTURING SAID TURBINE BLADE

In summary the invention relates to a turbine blade (10) with an airfoil comprising next to each other a main body (26) in a tip region (28), said tip region (28) ends in one or more free endings squealer tips (34), wherein the tip region (28) comprises a transition zone (30) with varying material c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Heselhaus, Andreas
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	In summary the invention relates to a turbine blade (10) with an airfoil comprising next to each other a main body (26) in a tip region (28), said tip region (28) ends in one or more free endings squealer tips (34), wherein the tip region (28) comprises a transition zone (30) with varying material composition and a end zone (32) having a constant material composition, wherein the transition zone is located between the end zone and the main body (26), the material composition in the transition zone (30) vary in a direction to the end zone (32) by continuously changing its local oxidation resistant properties. With such a turbine blade it is possible to have a longer operation time with reduced tip clearances leading to longer lasting high efficient operation of a turbine.