Metallurgy, Vol. 56 No. 3-4, 2017.
Original scientific paper
The effect of long-term impact of elevated temperature on changes in the microstructure of inconel 740H alloy
M. Sroka
; Silesian University of Technology, Gliwice, Poland
A. Zieliński
; Institute for Ferrous Metallurgy, Gliwice, Poland
A. Hernas
; Silesian University of Technology, Gliwice, Poland
Z. Kania
; Institute for Ferrous Metallurgy, Gliwice, Poland
R. Rozmus
; Institute for Ferrous Metallurgy, Gliwice, Poland
T. Tański
; Silesian University of Technology, Gliwice, Poland
A. Śliwa
; Silesian University of Technology, Gliwice, Poland
Abstract
This paper presents the results of investigations on microstructure changes after the long-term impact of temperature. The microstructure investigations were carried out by light microscopy and scanning electron microscopy. The qualitative and quantitative identification of the existing precipitates was carried out using X-ray phase composition analysis. The effect of elevated temperature on precipitation processes of test material were described. The obtained results of investigations form part of the material characteristics of new-generation alloys, which can be indirectly associated with the stability of functional properties under the simultaneous effect of high temperature and stress.
Keywords
inconel 740H; microstructure; hardness; carbides; ageing
Hrčak ID:
180976
URI
Publication date:
1.7.2017.
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