The welding of Mg/Al dissimilar materials with different filler metal was investigated, and the quantities and kinds of intermetallic compounds were discussed. In addition, the matching degrees between base metal and intermetallic compounds were defined and calculated, and the effect of different quantities of each intermetallic compound on the property of welded seam was investigated. The results indicated that the welded seam was composed of Al3Mg2 and Al12Mg17 by Mg/Al directly gas tungsten arc butt welding, and only one intermetallic compound of MgZn2 formed in the welding seam using Zn and Zn–xAl filler metal. The tensile strengths of the joints increased with the increase of the matching degrees between the intermetallic compounds and the base metal when the welded seam contained different intermetallic compound. Meanwhile, the tensile strengths of the joints are decreased with the increase of intermetallic compound content when the welded seams contained the seam intermetallic compound.
LeeSJ, NakamuraH, KawahitoY, Effect of welding speed on microstructural and mechanical properties of laser lap weld joints in dissimilar Al and Cu sheets. Sci Technol Weld Join. 2014; 19(2):111–118.
2.
LeeWB, BangKS, JungSB. Effects of intermetallic compound on the electrical and mechanical properties of friction welded Cu/Al bimetallic joints during annealing. J Alloy Compd. 2005; 390:212–219.
3.
IbrahimI, UematsuY, KakiuchiT, Fatigue behaviour of dissimilar Al alloy/galvanised steel friction stir spot welds fabricated by scroll grooved tool without probe. Sci Technol Weld Join2015; 20:670–678.
4.
LiuW, MaJJ, AtabakiMM, Joining of advanced high-strength steel to AA 6061 alloy by using Fe/Al structural transition joint. Mater Des. 2015; 68:146–157.
5.
MohammadiJ, BehnamianY, MostafaeiA, Friction stir welding joint of dissimilar materials between AZ31B magnesium and 6061 aluminum alloys: microstructure studies and mechanical characterizations. Mater Charact. 2015; 101:189–207.
6.
ZhaoY, LuZP, YanK, Microstructural characterizations and mechanical properties in underwater friction stir welding of aluminum and magnesium dissimilar alloys. Mater Des. 2015; 65:675–681.
7.
ZhangJ, LuoGQ, WangYY, Effect of Al thin film and Ni foil interlayer on diffusion bonded Mg–Al dissimilar joints. J Alloy Compd. 2013; 556:139–142.
8.
EmamiSM, DivandariM, ArabiH, Effect of melt-to-solid insert volume ratio on Mg/Al dissimilar metals bonding. J Mater Eng Perform. 2013; 22:123–130.
9.
SimonciniM, ForcelleseA. Effect of the welding parameters and tool configuration on micro- and macro-mechanical properties of similar and dissimilar FSWed joints in AA5754 and AZ31 thin sheets. Mater Des. 2012; 41:50–60.
10.
LiuP, LiYJ, GengHR, Microstructure characteristics in TIG welded joint of Mg/Al dissimilar materials. Mater Lett. 2007; 61:1288–1291.
11.
LiuF, RenDX, LiuLM. Effect of Al foils interlayer on microstructures and mechanical properties of Mg–Al butt joints welded by gas tungsten arc welding filling with Zn filler metal. Mater Des. 2013; 46:419–425.
12.
ShangJ, WangKH, ZhouQ, Microstructure characteristics and mechanical properties of cold metal transfer welding Mg/Al dissimilar metals. Mater Des. 2012; 34:559–565.
13.
WangJ, FengJC, WangYX. Microstructure of Al–Mg dissimilar weld made by cold metal transfer MIG welding. Mater Sci Technol. 2008; 24:827–831.
14.
BorrisutthekulR, MiyashitaY, MutohY. Dissimilar material laser welding between magnesium alloy AZ31B and aluminum alloy A5052-O. Sci Technol Adv Mater. 2005; 6:199–204.
15.
SchermF, BezoldJ, GlatzelU. Laser welding of Mg alloy MgAl3Zn1 (AZ31) to Al alloy AlMg3 (AA5754) using ZnAl filler material. Sci Technol Weld Join. 2012; 17(5):364–367.
16.
LiuLM, WangHY, ZhangZD. The analysis of laser weld bonding of Al alloy to Mg alloy. Scr Mater. 2007; 56:473–476.
17.
BalasubramanianV, Joseph FernandusM, SenthilkumarT. Development of processing windows for diffusion bonding of aluminium/magnesium dissimilar materials. Weld World. 2013; 57:523–539.
18.
LiangZY, ChenK, WangXN, Effect of tool offset and tool rotational speed on enhancing mechanical property of Al/Mg dissimilar FSW joints. Metall Mat Trans A. 2013; 44:3721–3731.
19.
WangYY, LuoGQ, ZhangJ, Microstructure and mechanical properties of diffusion-bonded Mg–Al joints using silver film as interlayer. Mater Sci Eng A. 2013; 559:868–874.
20.
GaoM, MeiSW, LiXY, Characterization and formation mechanism of laser-welded Mg and Al alloys using Ti interlayer. Scr Mater. 2012; 67:193–196.
21.
KattnerUR, BoettingerWJ. Thermodynamic calculation of the ternary Ti–Al–Nb system. Mater Sci Eng A. 1992; 152:9–17.
22.
LiangH, ChenSL, ChangYA. A thermodynamic description of the Al–Mg–Zn system. Metall Mater Trans A. 1997; 28:1725–1734.
23.
ZhongY, YangM, LiuZK. Contribution of first-principles energetics to Al–Mg thermodynamic modeling. Calphad. 2005; 29:303–311.
24.
WuMM, WenL, TangBY, First-principles study of elastic and electronic properties of MgZn2 and ScZn2 phases in Mg–Sc–Zn alloy. J Alloy Compd. 2010; 506:412–417.
25.
DietrichD, NickelD, KrauseM, Formation of intermetallic phases in diffusion-welded joints of aluminium and magnesium alloys. J Mater Sci. 2011; 46:357–364.
26.
RobsonJ, PanteliA, PrangnellPB. Modelling intermetallic phase formation in dissimilar metal ultrasonic welding of aluminium and magnesium alloys. Sci Technol Weld Join. 2012; 17(6):447–453.
27.
PierreV, AlanP, OkamotoH. Handbook of ternary alloy phase diagrams. Materials Park (OH): ASM International; 1995.
28.
LiuL, LiuF, ZhuM. Study on Mg/Al weld seam based on Zn–Mg–Al ternary alloy. Materials (Basel). 2014; 7:1173–1187.
