Open AccessInfluence of samarium and europium on Al+1.9%Mn alloy phase composition and microstructure
Author(s) -
Т. М. Умарова,
O Normahmedov
Publication year - 2020
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/866/1/012045
Subject(s) - samarium , europium , alloy , materials science , eutectic system , microstructure , manganese , phase (matter) , metallurgy , chemistry , inorganic chemistry , luminescence , optoelectronics , organic chemistry
The experimental results were proposed on the base of the research of the X-ray phase and microstructural analysis of eutectic structured aluminum-manganese alloy, modified by samarium and europium (up to 0.10 wt. %). The optimal concentration of europium was determined by the metallographic microscopy in order to obtain a fine dispersed structure. The results of microstructural analysis indicate the effectiveness of modifying the aluminum-manganese alloy of the eutectic composition with samarium and europium, especially Eu, in the existence of which the primary precipitates become compact, leading to a spherical shape, which allows us to consider the synthesized Al-1.9% Mn-0.05% Eu alloy in the future as a more promising (compared with the Al + 1.9% Mn alloy doped by samarium) structural material with improved physicochemical properties.