Tensile and fatigue testing of Inconel 617 alloy after heat treatment and electrochemical tests

Abstract

Inconel 617 alloy is widely used in industry due to its superior high temperature properties. After long periods of operation, the alloy microstructure changes. One of the methods to regain the alloy microstructure is heat treatment at elevated temperatures. In the present study, electrochemical and mechanical responses of Inconel 617 alloy over 30,000 hours of operation as a transition‐piece in agas turbine engine are examined. The heat treatment process at two different temperature levels is applied when refurbishing the alloy microstructure. The electrochemical tests are conducted to investigate the corrosion response of the alloy before and after the heat treatment process. Fatigue and tensile tests are carried out for the workpieces subjected to the electrochemical tests. SEM is introduced to examine the fractured surfaces.

Citation

Kewther, M.A., Yilbas, B.S. and Hashmi, M.S.J. (2001), "Tensile and fatigue testing of Inconel 617 alloy after heat treatment and electrochemical tests", Industrial Lubrication and Tribology, Vol. 53 No. 3, pp. 112-118. https://doi.org/10.1108/00368790110390201