학술논문
Influence of the High-Temperature Creep on the Phase Composition and Morphology of the γ' Phase of a Nickel Alloy.
Document Type
Article
Author
Source
Subject
*CREEP (Materials)
*NICKEL-chromium-aluminum alloys
*HEAT resistant materials
*MORPHOLOGY
*PARTICLE size determination
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Language
ISSN
1064-8887
Abstract
of electron microscopic study of Ni-Cr-Al based superalloy are presented. The superalloy prepared by the method of directed crystallization is investigated in the initial state and after creep for 10 h at Т = 1100°С and σ = 100 MPa. It is established that the alloy in both states is formed by γ and γ' phases based on the FCC crystal lattice; the γ' phase has ordered arrangement of atoms (the L1 superstructure) and is the main phase in all states. The phase composition and morphology are studied. The change in the phase composition and particle sizes of phases as a result of creep is analyzed. The influence of the high-temperature creep on the superalloy structure is established. [ABSTRACT FROM AUTHOR]