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A study of growth kinetics and distribution of χ precipitates in an induction-aged nickel-base superalloy

S. SOLEIMANI1, A. ABDOLLAH-ZADEH1,* , A. SAMADI1, H. ASSADI1

Affiliation

  1. Department of Materials Engineering, Tarbiat Modares University, P.O. Box: 14115-143, Tehran, Iran

Abstract

This paper focuses on age hardening behavior of a Ni-based superalloy, during induction and conventional resistance aging. Particular emphasis is placed on the characterization of γ' precipitates, using light laser scattering (LLS), scanning electron microscopy (SEM) and image analysis. The results indicate that the growth of χ' precipitates in the induction-aged samples is considerably faster than that in the conventionally treated ones. This could imply the existence of an additional effect by induction on the growth kinetics of χ' precipitates in this alloy..

Keywords

Ni-based superalloy, Induction aging, Precipitation, Size distribution.

Submitted at: Nov. 14, 2006
Accepted at: June 15, 2007

Citation

S. SOLEIMANI, A. ABDOLLAH-ZADEH, A. SAMADI, H. ASSADI, A study of growth kinetics and distribution of χ precipitates in an induction-aged nickel-base superalloy, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 6, pp. 1789-1792 (2007)