Aluminium alloy and magnesium alloy were successfully joined by using laser welding/brazing technology via a nickel interlayer. Microstructure and mechanical properties of the dissimilar Al/Mg joints with and without a nickel interlayer were comparatively investigated. No joints were achieved without a nickel interlayer; after welding, specimens were separated without applying any force. By inserting a nickel interlayer, sound metallurgical bonding were obtained at the interfaces. Hence, the joint strength reached 410 N with the failure at Mg/Ni interface. The influence of Ni interlayer on the weld defect, microstructure and joint strength was studied, and the joint formation mechanism was also discussed.
ChowdhurySH, ChenDL, BholeSD, Lap shear strength and fatigue behavior of friction stir spot welded dissimilar magnesium-to-aluminium joints with adhesive. Mater Sci Eng A. 2013; 562(1):53–60. doi: 10.1016/j.msea.2012.11.039
2.
SatoYS, ParkSHC, MichiuchiM, Constitutional liquation during dissimilar friction stir welding of Al and Mg alloys. Scripta Mater. 2004; 50(9):1233–1236. doi: 10.1016/j.scriptamat.2004.02.002
3.
ChoiDH, AhnBW, LeeCY, Formation of intermetallic compounds in Al and Mg alloy interface during friction stir spot welding. Intermetallics. 2011; 19(2):125–130. doi: 10.1016/j.intermet.2010.08.030
4.
LiuL, RenD, LiuF.A review of dissimilar welding techniques for magnesium alloys to aluminum alloys. Materials. 2014; 7(5):3735–3757. doi: 10.3390/ma7053735
5.
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. doi: 10.1179/136217112X13333824902080
6.
PennerP, LiuL, GerlichA, Dissimilar resistance spot welding of aluminum to magnesium with Zn-coated steel interlayers. Weld J. 2014; 93(6):225S–231S.
7.
FirouzdorV, KouS.Al-to-Mg friction stir welding: effect of material position, travel speed, and rotation speed. Mater Trans A. 2010; 41(11):2914–2935. doi: 10.1007/s11661-010-0340-1
PatelVK, BholeSD, ChenDL.Microstructure and mechanical properties of dissimilar welded Mg–Al joints by ultrasonic spot welding technique. Sci Technol Weld Join. 2013; 17(3):202–206. doi: 10.1179/1362171811Y.0000000094
10.
YangJ, LiY, ZhangH, Dissimilar laser welding/brazing of 5754 aluminum alloy to DP 980 steel: mechanical properties and interfacial microstructure. Metall Mater Trans A. 2015; 46(11):5149–5157. doi: 10.1007/s11661-015-3079-x
11.
ChenS, ZhaiZ, HuangJ, Interface microstructure and fracture behavior of single/dual-beam laser welded steel-Al dissimilar joint produced with copper interlayer. Int J Min Met Mater. 2016; 82(1):631–643.
12.
TanC, SongX, MengS, Laser welding-brazing of Mg to stainless steel: joining characteristics, interfacial microstructure, and mechanical properties. Int J Adv Manuf Tech. 2016; 86(1):1–11.
13.
SunM, NiknejadST, ZhangG, Microstructure and mechanical properties of resistance spot welded AZ31/AA5754 using a nickel interlayer. Mater Des. 2015; 87:905–913. doi: 10.1016/j.matdes.2015.08.097
14.
ChangWS, RajeshSR, ChunCK, Microstructure and mechanical properties of hybrid laser-friction stir welding between AA6061-T6 Al alloy and AZ31 Mg alloy. J Mater Sci Technol. 2011; 27(3):199–204. doi: 10.1016/S1005-0302(11)60049-2
15.
WangH, LiuL, LiuF.The characterization investigation of laser-arc-adhesive hybrid welding of Mg to Al joint using Ni interlayer. Mater Des. 2013; 50(17):463–466. doi: 10.1016/j.matdes.2013.02.085
16.
ASM Handbook Vol. 2, Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, Materials Park, OH: ASM Int'l, 1993.
LiL, TanC, ChenY, Influence of Zn coating on interfacial reactions and mechanical properties during laser welding-brazing of Mg to steel. Metall Mater Trans A. 2012; 43(12):4740–4754. doi: 10.1007/s11661-012-1266-6
WangCH, ChenHH, LiPY, Kinetic analysis of Ni5Zn21, growth at the interface between Sn-Zn solders and Ni. Intermetallics. 2012; 22(3):166–175. doi: 10.1016/j.intermet.2011.11.008
21.
PennerP, LiuL, GerlichA, Feasibility study of resistance spot welding of dissimilar Al/Mg combinations with Ni based interlayers. Sci Technol Weld Join. 2013; 18(7):541–550. doi: 10.1179/1362171813Y.0000000129
