Liquid-liquid phase separation and solidification behavior of Al-Bi-Sn monotectic alloy

被引：23

作者：

Wang, Lin ^{[1
]}

Li, Shanshan ^{[1
]}

Bo, Lin ^{[1
]}

Wu, Di ^{[1
]}

Zhao, Degang ^{[1
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 254卷

关键词：

Al-Bi-Sn monotectic alloy; Solidified structure; Resistivity; Liquid-liquid phase separation; Core-shell structure; IMMISCIBLE ALLOY; MISCIBILITY GAP; MICROSTRUCTURE;

D O I：

10.1016/j.molliq.2018.01.118

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：

In this study, the liquid-liquid phase separation of four kinds of Al-Bi-Sn immiscible melts and the formation mechanism of core-shell structure were studied using electrical resistivity and thermodynamics method. The thermodynamic characteristics and micromorphology were analyzed by DSC, XRD, SEM and EDS. The resistivity results showed that the non-linear change of rho-T curve above the monotectic reaction temperature reveals the occurrence of liquid-liquid phase separation. Solidification microstructure and the core-shell structure of Al-BiSn immiscible alloy can be controlled by adjusting the composition of alloy. The core/shell structure of Al-rich phase/Sn-Bi-rich phase can be obtained in the Al60Bi24Sn16 alloy cast in the copper mold. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：333 / 339

页数：7

共 20 条

[1]

Ahlborn H., 1979, 17 AER SCI M, V79

[2] EXPERIMENTAL-STUDY OF LIQUID-LIQUID INTERFACIAL-TENSION OF GA-PB SYSTEM BETWEEN MONOTECTIC AND CRITICAL-TEMPERATURES [J].

CHATAIN, D ;

MARTINGARIN, L ;

EUSTATHOPOULOS, N .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1982, 79 (7-8) :569-577

[3] One-Step Fabrication of Al/Sn-Bi Core-Shell Spheres via Phase Separation [J].

Dai, R. ;

Zhang, S. G. ;

Li, J. G. .

JOURNAL OF ELECTRONIC MATERIALS, 2011, 40 (12) :2458-2464

[4] Formation of core-type microstructure in Al-Bi monotectic alloys [J].

Dai, Rongrong ;

Zhang, Shuguang ;

Guo, Xiang ;

Li, Jianguo .

MATERIALS LETTERS, 2011, 65 (02) :322-325

[5] Phase transformations in ternary monotectic aluminum alloys [J].

Gröbner, J ;

Schmid-Fetzer, R .

JOM, 2005, 57 (09) :19-23

[6] Monotectic four-phase reaction in Al-Bi-Zn alloys [J].

Gröbner, J ;

Mirkovic, D ;

Schmid-Fetzer, R .

ACTA MATERIALIA, 2005, 53 (11) :3271-3280

[7] Effect of melt superheating treatment on solidification structures of Al75Bi9Sn16 immiscible alloy [J].

Jia, Peng ;

Zhang, Jinyang ;

Geng, Haoran ;

Yang, Zhongxi ;

Teng, Xinying ;

Zhao, Degang ;

Wang, Yan ;

Zuo, Min ;

Sun, Ningqiang .

JOURNAL OF MOLECULAR LIQUIDS, 2017, 232 :457-461

[8] Characteristics of liquid-liquid immiscibility in Al-Bi-Cu, Al-Bi-Si, and Al-Bi-Sn monotectic alloys: Differential scanning calorimetry, interfacial tension, and density difference measurements [J].

Kaban, Ivan G. ;

Hoyer, Walter .

PHYSICAL REVIEW B, 2008, 77 (12)

[9] Macroscopic liquid phase separation of Fe-Sn immiscible alloy investigated by both experiment and simulation [J].

Luo, B. C. ;

Liu, X. R. ;

Wei, B. .

JOURNAL OF APPLIED PHYSICS, 2009, 106 (05)

[10] The temperature dependence of resistivity and solidifying process of Al63Cu27Sn10 alloy [J].

Ma, Yuyao ;

Jia, Peng ;

Geng, Haoran ;

Yang, Zhongxi ;

Zuo, Min .

JOURNAL OF MOLECULAR LIQUIDS, 2017, 227 :291-294

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