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Physics of Metals and Metallography

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01-02-2019 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

Specific Features of the Atomic Structure of the Ti₅₀Ni₂₅Cu₂₅ Alloy Amorphized during Rapid Quenching from a Melt

Authors: V. G. Pushin, A. V. Pushin, N. N. Kuranova

Published in: Physics of Metals and Metallography | Issue 2/2019

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Abstract

This paper presents results of the structural study of the Ti₅₀Ni₂₅Cu₂₅ alloy formed under rapid quenching from a melt. The studies were performed using neutron and X-ray diffraction and transmission and scanning electron microscopy. It has been revealed that this alloy has an amorphous nanocrystalline structure, which contains В2, L2₁, and L1₂ ensembles of nanocrystals with sizes to several nanometers in an amorphous matrix alongside with microspherolites, which have sustained the thermoelastic В2–В19 martensitic transition. It has also been shown for the first time that topological and compositional short-range atomic order is formed in the amorphous matrix of the Ti₅₀N₂₅Cu₂₅ alloy in the form of localized nanodomains by the same three types of superstructures (В2, L2₁, L1₂).

previous article Effect of Annealing on the Structure and Properties of the Aging Al–Li–Cu–Mg–Zr–Sc–Zn Alloy Subjected to Megaplastic Strain

next article Structure and Properties of Ni47Mn42In11 Alloy after Severe Plastic Deformation

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Title: Specific Features of the Atomic Structure of the Ti50Ni25Cu25 Alloy Amorphized during Rapid Quenching from a Melt
Authors: V. G. Pushin
A. V. Pushin
N. N. Kuranova
Publication date: 01-02-2019
Publisher: Pleiades Publishing
Published in: Physics of Metals and Metallography / Issue 2/2019
Print ISSN: 0031-918X
Electronic ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X19020157

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