On the origin of heat effects and shear modulus changes upon structural relaxation and crystallization of metallic glasses

被引：17

作者：

Afonin, G. V. ^{[1
]}

Mitrofanov, Yu. P. ^{[1
]}

Makarov, A. S. ^{[1
]}

Kobelev, N. P. ^{[2
]}

Khonik, V. A. ^{[1
]}

机构：

[1] State Pedag Univ, Dept Gen Phys, Lenin St 86, Voronezh 394043, Russia

[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2017年 / 475卷

关键词：

Metallic glasses; Structural relaxation; Crystallization; Shear modulus; Heat effects; SUPERCOOLED LIQUIDS; FORMING LIQUID; FLOW; BEHAVIOR; VOLUME; HETEROGENEITY; ANHARMONICITY; DEFORMATION; ELASTICITY; TRANSITION;

D O I：

10.1016/j.jnoncrysol.2017.08.029

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is well known that structural relaxation below the glass transition and crystallization of metallic glasses are accompanied by the heat release and increase of the shear modulus. In the present work, these effects are studied in detail for sixteen Zr-, Pd- and La-based metallic glasses and analyzed within the framework of the Interstitialcy theory. The obtained results imply that the increase of the shear modulus and heat effects occurring upon structural relaxation and crystallization are conditioned by the same mechanism - a change of the elastic energy related to the system of interstitialcy defects frozen-in upon glass production. In particular, the heat of crystallization constitutes a direct manifestation of the dissipation of the elastic energy related to this defect system, which disappears upon crystallization.

引用

页码：48 / 52

页数：5

共 46 条

[1] Universal relationship between crystallization-induced changes of the shear modulus and heat release in metallic glasses [J].

Afonin, G. V. ;

Mitrofanov, Yu. P. ;

Makarov, A. S. ;

Kobelev, N. P. ;

Wang, W. H. ;

Khonik, V. A. .

ACTA MATERIALIA, 2016, 115 :204-209

[2] Structural relaxation and related viscous flow of Zr-Cu-Al-based bulk glasses produced from the melts with different glass-forming ability [J].

Afonin, G. V. ;

Khonik, S. V. ;

Konchakov, R. A. ;

Mitrofanov, Yu. P. ;

Kobelev, N. P. ;

Podurets, K. M. ;

Tsyplakov, A. N. ;

Kaverin, L. D. ;

Khonik, V. A. .

INTERMETALLICS, 2011, 19 (09) :1298-1305

[3] REVERSIBLE AND IRREVERSIBLE-PROCESSES OF STRUCTURAL RELAXATION AND DYNAMIC YOUNG MODULUS BEHAVIOR IN THE FE40NI38MO4B18 AMORPHOUS ALLOY [J].

ALLIA, P ;

BONETTI, E ;

EVANGELISTA, E ;

TURRONI, L ;

VINAI, F .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1985, 88 (02) :521-527

[4] SOME PHYSICAL PROPERTIES OF 2 AMORPHOUS METALLIC ALLOYS [J].

BERRY, BS ;

PRITCHET, WC .

JOURNAL OF APPLIED PHYSICS, 1973, 44 (07) :3122-3126

[5] STRUCTURE RELAXATION SPECTRUM OF METALLIC GLASSES [J].

CHEN, HS ;

COLEMAN, E .

APPLIED PHYSICS LETTERS, 1976, 28 (05) :245-247

[6] GLASSY METALS [J].

CHEN, HS .

REPORTS ON PROGRESS IN PHYSICS, 1980, 43 (04) :353-+

[7] Supercooled liquids and the glass transition [J].

Debenedetti, PG ;

Stillinger, FH .

NATURE, 2001, 410 (6825) :259-267

[8] Dynamics of viscoplastic deformation in amorphous solids [J].

Falk, ML ;

Langer, JS .

PHYSICAL REVIEW E, 1998, 57 (06) :7192-7205

[9] Premelting generation of interstitial defects in polycrystalline indium [J].

Goncharova, E. V. ;

Makarov, A. S. ;

Konchakov, R. A. ;

Kobelev, N. P. ;

Khonik, V. A. .

JETP LETTERS, 2017, 106 (01) :35-39

[10] Identification of interstitial-like defects in a computer model of glassy aluminum [J].

Goncharova, E. V. ;

Konchakov, R. A. ;

Makarov, A. S. ;

Kobelev, N. P. ;

Khonik, V. A. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2017, 29 (30)

← 1 2 3 4 5 →