Microstructural characteristics of lap joint between magnesium alloy and mild steel with and without the addition of Sn element

被引：73

作者：

Liu, Liming ^{[1
]}

Qi, Xiaodong ^{[1
]}

Wu, Zhonghui ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 01期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Mg alloy; Wettability; Sn addition; Steel; MG; SI;

D O I：

10.1016/j.matlet.2009.10.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lap joint of AZ31B Mg alloy to Q235 steel by hybrid laser-TIG welding was studied. Microstructures of Sn-free and Sn-added joint were investigated, and the intermediate phase of Sn-added joints was also inspected. In contrast with the Sn-free joints, intermetallic compound Mg2Sn with dendritic structure distributed in the grain boundaries of Mg alloy was identified; Gaps at the interfaces were vanished as the wettability of Mg alloy with the addition of Sn on steel was improved. Big particles in fusion zone became even smaller or disappeared in the Sn-added joints. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：89 / 92

页数：4

共 15 条

[1] Processing of silicon carbide-boron carbide-aluminium composites [J].

Arslan, Gursoy ;

Kalemtas, Ayse .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (03) :473-480

[2]

Candan E., 2002, Turkish Journal of Engineering and Environmental Sciences, V26, P1

[3] A review of laser welding techniques for magnesium alloys [J].

Cao, X ;

Jahazi, M ;

Immarigeon, JP ;

Wallace, W .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2006, 171 (02) :188-204

[4] Effect of tool geometry on microstructure and mechanical properties of friction stir lap welded magnesium alloy and steel [J].

Chen, Y. C. ;

Nakata, K. .

MATERIALS & DESIGN, 2009, 30 (09) :3913-3919

[5] Synthesis of Mg2X (X = Si, Ge, or Sn) intermetallics by mechanical alloying [J].

Clark, CR ;

Wright, C ;

Suryanarayana, C ;

Baburaj, EG ;

Froes, FH .

MATERIALS LETTERS, 1997, 33 (1-2) :71-75

[6] Wettability and spreading kinetics of Al and Mg on TiC [J].

Contreras, A ;

León, CA ;

Drew, RAL ;

Bedolla, E .

SCRIPTA MATERIALIA, 2003, 48 (12) :1625-1630

[7]

EUSTATHOPOULOS N, 1999, PREGAMON MAT SERIES, V3

[8] The wettability of SiC particles by molten aluminium alloy [J].

Hashim, J ;

Looney, L ;

Hashmi, MSJ .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2001, 119 (1-3) :324-328

[9] Thermodynamic modeling of the Mg-Si-Sn system [J].

Jung, In-Ho ;

Kang, Dae-Hoon ;

Park, Woo-Jin ;

Kim, Nack J. ;

Ahn, Sangho .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2007, 31 (02) :192-200

[10] Study on the weld joint of Mg alloy and steel by laser-GTA hybrid welding [J].

Liu, L. M. ;

Zhao, X. .

MATERIALS CHARACTERIZATION, 2008, 59 (09) :1279-1284

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