Analysis of the precipitation process of the intermetallic phases in a high-temperature Fe–Ni austenitic alloy

The influence of prolonged ageing on the precipitation process of the intermetallic phases and carbides in a high-temperature austenitic Fe–Ni alloy has been studied. The samples were subjected to a solution heat treatment at 980°C for 1h and water quenched, and then aged at 715°C for 0.5–500h. The...

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Bibliographic Details
Published in:Materials chemistry and physics 2003-08, Vol.81 (2-3), p.490-492
Main Authors: Ducki, K.J., Hetmańczyk, M., Kuc, D.
Format: Article
Language:English
Subjects:
A-286 alloy
Ageing
Condensed matter: structure, mechanical and thermal properties
Electron, ion, and scanning probe microscopy
Exact sciences and technology
Heat treatment
Phase transition
Physics
Precipitation
Structure of solids and liquids
crystallography
TEM
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Summary:The influence of prolonged ageing on the precipitation process of the intermetallic phases and carbides in a high-temperature austenitic Fe–Ni alloy has been studied. The samples were subjected to a solution heat treatment at 980°C for 1h and water quenched, and then aged at 715°C for 0.5–500h. The samples were analysed using transmission electron microscopy (TEM) and X-ray diffraction. Direct measurements on the electron micrographs allowed to calculate the structural parameters of the γ′ phase: mean diameter, volume fraction, and mean distance between the particles.
ISSN:0254-0584
1879-3312
DOI:10.1016/S0254-0584(03)00050-6