Heat Effects Occurring in the Supercooled Liquid State and Upon Crystallization of Metallic Glasses as a Result of Thermally Activated Evolution of Their Defect Systems

Andrei Makarov; Gennadii Afonin; Yurii Mitrofanov; Nikolai Kobelev; Vitaly Khonik

doi:10.3390/met10030417

Metals (Mar 2020)

Heat Effects Occurring in the Supercooled Liquid State and Upon Crystallization of Metallic Glasses as a Result of Thermally Activated Evolution of Their Defect Systems

Andrei Makarov,
Gennadii Afonin,
Yurii Mitrofanov,
Nikolai Kobelev,
Vitaly Khonik

Affiliations

Andrei Makarov: Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh 394043, Russia
Gennadii Afonin: Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh 394043, Russia
Yurii Mitrofanov: Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh 394043, Russia
Nikolai Kobelev: Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow 142432, Russia
Vitaly Khonik: Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh 394043, Russia

DOI: https://doi.org/10.3390/met10030417
Journal volume & issue: Vol. 10, no. 3
p. 417

Abstract

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We show that the kinetics of endothermal and exothermal effects occurring in the supercooled liquid state and upon crystallization of metallic glasses can be well reproduced using temperature dependences of their shear moduli. It is argued that the interrelation between the heat effects and shear modulus relaxation reflects thermally activated evolution of interstitial-type defect system inherited from the maternal melt.

Published in Metals

ISSN: 2075-4701 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.mdpi.com/journal/metals

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