Effects of zinc coating on magnesium alloy-steel joints produced by cold metal transfer method

被引：19

作者：

Cao, R. ^{[1
]}

Zhu, H. X. ^{[1
]}

Wang, Q. ^{[2
]}

Dong, C. ^{[2
]}

Lin, Q. ^{[1
]}

Chen, J. H. ^{[1
]}

机构：

[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China

[2] Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2016年 / 32卷 / 18期

关键词：

Magnesium; Steel; Brazed welded; Zinc; Aluminium; Cold metal transfer; COATED STEEL; MECHANICAL-PROPERTIES; MG ALLOY; WELDED-JOINTS; MILD-STEEL; SPOT WELDS; Q235; STEEL; MICROSTRUCTURE; INTERLAYER; ALUMINUM;

D O I：

10.1080/02670836.2016.1148107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnesium alloys are lap-joined to galvanised and bare steel sheets by a cold metal transfer method. The weld appearance, cross-section, tensile strength and fracture behaviour of these joints are characterised by scanning electron microscopy, tensile tests and energy-dispersive spectroscopy. The joints were found to have good weld appearance and satisfactory tensile strength. The spreadability and wettability of the Mg alloy-galvanised steel joint are superior to those of the Mg alloy-bare steel joint, but the tensile strength is lower. In particular, the presence of Zn on the galvanised steel sheet improves wettability but decreases tensile strength. Aluminium has a high affinity for Fe, and the thinner layer of Fe-Al improves the mechanical properties of the Mg alloy-bare steel joint.

引用

页码：1805 / 1817

页数：13

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