APPLICATION OF FE3AL INTERMETALLIC PHASE FILLER METAL IN VALVE SEATING FACE HARD FACING

Author:

SZCZUCKA-LASOTA Bożena,WĘGRZYN Tomasz,CYBULKO Piotr

Abstract

The exhaust valve seat face is a surface that degrades slowly as a result of mechanical and thermal stresses. There is extensive research on new materials for valves and for the improvement of valve production technology. This paper discusses the method of obtaining a filler metal made of Fe3Al intermetallic phase and the method of TIG hard-facing on a valve seating face made of H9S2 steel, evaluating the effects of essential hard-facing parameters. The resulting hard-facing build up was assessed in terms of quality using industrial radiography testing (RT).

Publisher

Silesian University of Technology

Subject

Mechanical Engineering,Transportation,Aerospace Engineering,Automotive Engineering,Civil and Structural Engineering

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