Open AccessStudying Thermal Stability of Cast and Microcrystalline Alloys Al-(2.5, 4)%Mg-Sc-Zr
Author(s) -
I. S. Shadrina,
А. В. Нохрин,
В. И. Копылов,
В. Н. Чувильдеев,
A. A. Bobrov,
C.V. Likhnitskii
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1014/1/012051
Subject(s) - materials science , alloy , microcrystalline , scandium , zirconium , aluminium , recrystallization (geology) , metallurgy , thermal stability , homogeneous , crystallization , melting temperature , crystallography , chemical engineering , composite material , thermodynamics , chemistry , paleontology , physics , engineering , biology
The article presents the results of experimental studies of the structure and mechanical properties of cast and microcrystalline (MC) aluminum alloys Al-(2.5, 4)%Mg-Sc-Zr with a total content of Sc+Zr = 0.32%. The Sc content was varied from 0.10% to 0.22% at an interval of 0.02%, with the Zr concentration in the alloy being changed proportionally. In their initial state, cast alloys are characterized by a homogeneous coarse-grained macrostructure. The structure of the alloy structure presents single submicron particles Al 3 (Sc,Zr) that are formed during crystallization of the alloys. It has been demonstrated that the recrystallization onset temperature in MC alloys depends on the scandium-to-zirconium ratio.