Determining thermophysical properties of undercooled liquid Ti-Al alloy by electromagnetic levitation

被引：22

作者：

Zhou, K. ^{[1
]}

Wang, H. P. ^{[1
]}

Wei, B. ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Dept Appl Phys, Xian 710072, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 521卷

基金：

中国国家自然科学基金;

关键词：

SURFACE-TENSION;

D O I：

10.1016/j.cplett.2011.09.061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Owing to the high liquidus temperature and reactivity, it is usually difficult to undercool liquid Ti-Al alloys and measure their thermophysical properties. Here, the surface tension of liquid Ti80Al20 alloy is determined in the temperature range of 1706-2273 K by using oscillating drop method under electromagnetic levitation condition, and a maximum undercooling of 257 K (0.13 T-L) is achieved. The measured surface tension of Ti80Al20 alloy exhibits a linear dependence on temperature. Furthermore, based on the measured surface tension, the viscosity is also derived. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：52 / 54

页数：3

共 16 条

[1] OSCILLATIONS OF MAGNETICALLY LEVITATED ASPHERICAL DROPLETS [J].

CUMMINGS, DL ;

BLACKBURN, DA .

JOURNAL OF FLUID MECHANICS, 1991, 224 :395-416

[2] The surface tension of liquid aluminium-based alloys [J].

Egry, I. ;

Brillo, J. ;

Holland-Moritz, D. ;

Plevachuk, Yu. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 495 (1-2) :14-18

[3] ON THE RELATION BETWEEN SURFACE-TENSION AND VISCOSITY FOR LIQUID-METALS [J].

EGRY, I .

SCRIPTA METALLURGICA ET MATERIALIA, 1993, 28 (10) :1273-1276

[4]

EGRY I, 2007, INT J THERMOPHYS, V28, P1033

[5] Thermophysical properties of undercooled liquid cobalt [J].

Han, XJ ;

Wang, N ;

Wei, B .

PHILOSOPHICAL MAGAZINE LETTERS, 2002, 82 (08) :451-459

[6]

Iida T., 1993, PHYS PROPERTIES LIQU

[7] Thermophysical Properties of Undercooled Alloys: An Overview of the Molecular Simulation Approaches [J].

Lv, Yong J. ;

Chen, Min .

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2011, 12 (01) :278-316

[8] How does tetrahedral structure grow in liquid silicon upon supercooling? [J].

Morishita, Tetsuya .

PHYSICAL REVIEW LETTERS, 2006, 97 (16)

[9] Viscosity of liquid undercooled tungsten [J].

Paradis, PF ;

Ishikawa, T ;

Yoda, S .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (10)

[10]

Rayleigh L., 1879, P R SOC LOND, V29, P71, DOI [10.1098/rspl.1879.0015, DOI 10.1098/RSPL.1879.0015]

← 1 2 →