Open AccessFORMATION OF THE INTERACTION ZONE AT THE INTERLAYER BOUNDARY OF THE EXPLOSION-BOILED COMPOSITE VT1-0 + MH45 IN CONTACT MELTING
Author(s) -
В. Г. Шморгун,
А. Г. Серов,
О. В. Слаутин,
С. А. Кузнецов,
A. V. Malykh
Publication year - 2020
Publication title -
izvestiâ volgogradskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1990-5297
DOI - 10.35211/1990-5297-2020-4-239-7-13
Subject(s) - materials science , intermetallic , composite number , metallurgy , alloy , ternary operation , diffusion , titanium , phase (matter) , titanium alloy , nickel titanium , composite material , copper , phase boundary , shape memory alloy , thermodynamics , chemistry , physics , organic chemistry , computer science , programming language
It is shown that the replacement of the MH19 alloy with the MH45 alloy in the explosion-welded layered titanium-copper-nickel composite leads to a decrease in the temperature at which the liquid (metal melted by contact melting) is in equilibrium with the solid phases from 930 ° C (L↔TiCuNi + NiTi + CuTi) up to 860 ° C (L↔ TiCu+NiTi+TiNi); to a change in the mechanism of contact melting from diffusion to diffusion; to increase the proportion of titanium in the interaction zone from ~ 50 at.% to ~ 66 at.%. The development of the contact melting process at the interlayer boundary of the VT1-0 + MH45 layered composite after the solid solution is transformed into a liquid phase film leads to the formation of an interaction zone with the phase composition TiCuNi, TiNi (Cu), TiCu (Ni), TiNi (Cu) TiCu (Ni) . On the side of the MH45 alloy, a continuous layer of the ternary intermetallic TiCuNi adjoins it, and on the titanium side, αTi + TiNi (Cu).