Open AccessSTRUCTURE AND PHASE COMPOSITION OF COATING ON EP718 ALLOY AFTER HOT-DIP ALUMINIZING
Author(s) -
А. И. Богданов,
В. Г. Шморгун,
V. P. Kulevich,
R. D. Evchits,
N. V. Terpugov
Publication year - 2021
Publication title -
izvestiâ volgogradskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1990-5297
DOI - 10.35211/1990-5297-2021-10-257-7-11
Subject(s) - aluminide , alloy , materials science , coating , metallurgy , aluminium , layer (electronics) , chemical composition , monoclinic crystal system , phase (matter) , chromium , intermetallic , composite material , crystallography , crystal structure , chemistry , organic chemistry
The results of studies of the structure, chemical and phase composition of the aluminide coating formed on the surface of EP718 alloy after its hot-dip aluminizing are presented. It is shown that the inner layer of the coating consists of a continuous layer of a solid solution based on chromium aluminide CrAl with a monoclinic lattice, in which some of the Cr atoms are replaced by atoms of elements from the EP718 alloy, and the outer layer, which has a pronounced heterogeneous structure, is an aluminum matrix with inclusions of CrAl aluminide. with a lower aluminum content.