Paper Title:
The Study of Microstructure and Properties of Al Diffusion Coating on Inconel 713LC
  Abstract

Protective layers are used to improve high temperature performance of structural materials. However, the effect of coatings on mechanical and fatigue properties is not sufficiently known because it is a combination of many factors as high-temperature exposure time, thermal cycle and coating deposition technique. Interactions between the coating and the substrate under high-temperature conditions influence the life time of coated blades. This paper is focused on the study of microstructure and properties of aluminide protective layers deposited on cast polycrystalline nickel base superalloy Inconel713LC. The light microscopy with image analyses and scanning electron microscopy with energy dispersion spectroscopy were used. The surface treated specimens exposed at 800 °C in air and cylindrical specimens with protective layer cyclically loaded under strain control at 800 °C in air were studied. Experimental data on thickness, uniformity and chemical analysis of individual phases are obtained for as-coated specimens, for specimens exposed to 800 °C for 500 hours in air and for specimens fatigued to fracture at 800 °C in air.

  Info
Periodical
Edited by
Pavel Šandera
Pages
282-285
DOI
10.4028/www.scientific.net/KEM.465.282
Citation
S. Hutařová, M. Juliš, K. Obrtlík, M. Kianicová, T. Podrábský, O. Dvořáček, "The Study of Microstructure and Properties of Al Diffusion Coating on Inconel 713LC", Key Engineering Materials, Vol. 465, pp. 282-285, 2011
Online since
January 2011
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$32.00
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