Viscosity of Al-Ni-Co-Nd(Sm) glass-forming melts at high temperatures

被引：0

作者：

Rusanova, A., I ^{[1
]}

Rusanov, B. A. ^{[2
]}

Beltyukov, A. L. ^{[3
]}

Sidorov, V. E. ^{[2
,3
,4
]}

Son, L. D. ^{[1
,2
,3
,4
]}

机构：

[1] Inst Met UB RAS, Ekaterinburg, Russia

[2] Ural State Pedag Univ, Ekaterinburg, Russia

[3] Udmurt Fed Res Ctr UB RAS, Izhevsk, Russia

[4] Ural Fed Univ, Ekaterinburg, Russia

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2024年 / 36卷 / 42期

基金：

俄罗斯科学基金会;

关键词：

glass-forming alloys; melts; viscosity; relaxation processes; AMORPHOUS-ALLOYS; ABILITY; CRYSTALLIZATION; RELAXATION; LA; GD;

D O I：

10.1088/1361-648X/ad649e

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Obtaining amorphous alloys with good mechanical and anticorrosion properties is an important problem of modern condensed matter physics. Since the preparation of amorphous alloys involves casting them from liquid state, information on the properties of the melts is needed. Viscosity is one of the most informative structure-sensitive property of melts. In this paper viscosity of some glass-forming Al-Ni-Co-Nd(Sm) melts with different ratio of transition metals was studied using damped oscillation method in a wide temperature range up to 1550 K. Activation energies of the viscous flow were calculated from the experimental data. The hysteresis of viscosity temperature dependences during heating and subsequent cooling was found. It can be associated with a melt transition to a more homogeneous state. The repeated heating and cooling of the melts without crystallization lead to Arrhenius type of viscosity temperature dependences.

引用

页数：6

共 41 条

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