Microstructures and properties of Mg alloy/DP600 steel dissimilar refill friction stir spot welds

被引：70

作者：

Chen, Y. ^{[1
]}

Chen, J. ^{[2
]}

Amirkhiz, B. Shalchi ^{[2
]}

Worswick, M. J. ^{[1
]}

Gerlich, A. P. ^{[1
]}

机构：

[1] Univ Waterloo, Dept Mech & Mechatron Engn, Waterloo, ON N2L 3G1, Canada

[2] Nat Resources Canada, CanmetMAT, Hamilton, ON, Canada

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2015年 / 20卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Refill spot welding; Friction stir; Spot welding; Magnesium; Steel; ALUMINUM;

D O I：

10.1179/1362171815Y.0000000033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Joining of ZEK100 Mg alloy and Zn coated DP600 steel sheets is studied using refill friction stir spot welding (RFSSW). The RFSSW process involves a tool with independently moving sleeve and pin components, which rotate at a constant speed and penetrate into only the top sheet. Welds could be achieved, which exceeded 4.7 kN shear strength, using the following process parameters: 1800 rev min 21 tool speed, 3.0 s welding time and 1.5 mm of penetration into the upper ZEK100 sheet. Scanningelectron (SEM) andtransmission electronmicroscopy (TEM) are used to characterise the Mg/steel interface. It is revealed that a continuous layer of FeAl2 particles accommodate bonding of the sheets, which appears to have originated from the galvanised coating on the DP600.

引用

页码：494 / 501

页数：8

共 23 条

[1] On the feasibility of friction spot joining in magnesium/fiber-reinforced polymer composite hybrid structures [J].

Amancio-Filho, S. T. ;

Bueno, C. ;

dos Santos, J. F. ;

Huber, N. ;

Hage, E., Jr. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (10-11) :3841-3848

[2] Preliminary Investigation of the Microstructure and Mechanical Behaviour of 2024 Aluminium Alloy Friction Spot Welds [J].

Amancio-Filho, Sergio T. ;

Camillo, Ana P. C. ;

Bergmann, Luciano ;

dos Santos, Jorge F. ;

Kury, Sebastiao E. ;

Machado, Nelson G. A. .

MATERIALS TRANSACTIONS, 2011, 52 (05) :985-991

[3]

[Anonymous], 2003, 10 GALVINFO ILZRO

[4]

[Anonymous], AWSD89M

[5]

Blosmo D., 2011, FRICTION STIR WELDIN

[6] Redetermination of iron dialuminide, FeAl2 [J].

Chumak, Ihor ;

Richter, Klaus W. ;

Ehrenberg, Helmut .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 2010, 66 :87-88

[7] Control of the growth of zinc-iron phases in the hot-dip galvanizing process [J].

Culcasi, JD ;

Seré, PR ;

Elsner, CI ;

Di Sarli, AR .

SURFACE & COATINGS TECHNOLOGY, 1999, 122 (01) :21-23

[8]

Gendo T., 2007, SAE TECH SER, V1, P1703

[9]

Hancock R, 2004, WELD J, V83, P83

[10] Effect of Ni addition in zinc bath on formation of inhibition layer during galvannealing of hot-dip galvanized sheet steels [J].

Lee, HJ ;

Kim, JS .

JOURNAL OF MATERIALS SCIENCE LETTERS, 2001, 20 (10) :955-957

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