Structure and phase composition of the superalloy on the basis of Ni-Al-Cr alloyed by Re and La

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Nikonenko, E.L.^1,2 ; Popova, N.A.^1,3 ; Koneva, N.A.^1 ; Kozlov, E.V.^1

Tomsk State University of Architecture and Building, Solyanaya Sq. 2, Tomsk

634003, Russia^1

National Research Tomsk Polytechnic University, Lenin Ave. 30, Tomsk

634050, Russia^2

Institute of Strength Physics and Materials Science SB RAS, 8/2 Akademicheskii Ave., Tomsk

634021, Russia^3

关键词: Ni-Al-Cr;    Quantitative study;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012036/pdf
DOI  :  10.1088/1757-899X/112/1/012036

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Qualitative and quantitative studies of the structure, phase composition, morphology of phase of the high-rhenium alloys additionally doped with La were carried out by TEM and SEM methods. The alloy was obtained by directional solidification method. It was shown that introduction of Re and La to an alloy leads to formation of new phases: β and χ , which bring serious irregularities in the structure of quasicuboids of γ'-phase.