Ni-Al-Co 系统中高温铝热合成产物的多态性

IF 0.9 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Inorganic Materials Pub Date : 2024-03-10 DOI:10.1134/S0020168523100023

M. L. Busurina, V. A. Gorshkov, A. E. Sychev, O. D. Boyarchenko, I. D. Kovalev

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引用次数: 0

摘要

摘要--首次通过铝热反应制备了成分为 45 wt % Ni + 41 wt % Co + 14 wt % Al 的镍-铝-钴合金。合成合金的相组成包括钴在镍铝化物中的立方（Ni,Co）3Al 固溶体（γ'-相）和四方（Ni,Co）3Al 相。(Ni,Co)3Al四方结构的形成是由于立方(Ni,Co)3Al相晶粒中的过饱和初始结构发生了马氏体转变。合成合金的晶内显微硬度为 6500 兆帕。该合金具有软磁特性，在 10 kOe 磁场中的最高磁化率为 27 emu/g。

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Polymorphism of High-Temperature Aluminothermic Synthesis Products in the Ni–Al–Co System

Ni–Al–Co alloy with the composition 45 wt % Ni + 41 wt % Co + 14 wt % Al has been prepared for the first time by aluminothermic reaction. The phase composition of the synthesized alloy comprises a cubic (Ni,Co)₃Al solid solution of cobalt in nickel aluminide (γ'-phase) and a tetragonal (Ni,Co)₃Al phase. The formation of the tetragonal structure of (Ni,Co)₃Al is due to a martensitic transformation of a supersaturated initial structure in grains of the cubic (Ni,Co)₃Al phase. The intragranular microhardness of the synthesized alloy is 6500 MPa. The alloy has soft magnetic properties, with the highest magnetization of 27 emu/g in a magnetic field of 10 kOe.

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来源期刊

Inorganic Materials 工程技术-材料科学：综合

CiteScore

1.40

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.