Atomic ordering in the phases of a nickel-chromium-based superalloy |
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| Authors: | V. I. Goman’kov G. I. Nosova V. V. Rtishchev S. E. Manaenkov L. E. Fykin |
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| Affiliation: | (1) Bardin Central Research Institute for the Iron and Steel Industry, Vtoraya Baumanskaya ul. 9/23, Moscow, 105005, Russia;(2) LMZ OAO Silovye Mashiny (St. Petersburg Branch), St. Petersburg, Russia;(3) Karpov Institute of Physical Chemistry (Obninsk Branch), Obninsk, Kaluzhskaya oblast, 249020, Russia |
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| Abstract: | The distribution of alloying atoms over the sites of the ordered crystal lattices of the γ′ phase and the Ni2Cr superstructure that form during aging of the EK78 superalloy is determined by neutron diffraction, and their long-range order parameters are measured. The size, shape, and orientation of the forming γ′-phase precipitates and the ordered matrix are determined by electron microscopy. The mechanism by which the ordered phases in the EK78 alloy form during complex heat treatment is described. |
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| Keywords: | KeywordHeading" >PACS number 64.60.Cn |
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