An ultrasonic-assisted semi-solid brazing method was used to control Mg/Al intermetallic compounds (IMCs). Zn–20.95Al, which has a large semi-solid temperature range of 60°C, was chosen as filler metal. Oxide films on the Al/Mg surfaces were removed despite the semi-solid state of the filler metal at 430°C. Al–Mg–Zn IMCs were observed inside the joint at 667 W and 5 s. The IMCs was reduced as ultrasonication time was prolonged. At high power of 1000 W, short ultrasonication time was needed to guarantee that no IMCs remained inside the joint. Otherwise, new IMCs formed because of serious cavitation erosion on substrates. Ultrasonication time of 20 s was unable to completely eliminate IMCs and solid phases at 423°C.
IslamMR, IshakM, ShahLH, Dissimilar welding of A7075-T651 and AZ31B alloys by gas metal arc plug welding method. Int J Adv Manuf Technol. 2017; 88:2773–2783. doi: 10.1007/s00170-016-8993-6
2.
ZhaoY, DingZ, ChenY.Crystallographic orientations of intermetallic compounds of amulti-pass friction stir processed Al/Mg composite materials. Mater Charact. 2017; 128:156–164. doi: 10.1016/j.matchar.2017.02.005
3.
ZhaoHY, LiuJH, LiZL, Non-interfacial growth of Cu3Sn in Cu/Sn/Cu joints during ultrasonic assisted transient liquid phase soldering process. Mater Lett. 2017; 186:283–288. doi: 10.1016/j.matlet.2016.10.017
4.
FirouzdorV, KouS.Formation of liquid and intermetallics in Al-to-Mg friction stir welding. Metall Mater Trans A. 2010; 41A:3238–3251. doi: 10.1007/s11661-010-0366-4
5.
SuhuddinUFH, FischerV, dos SantosJF.The thermal cycle during the dissimilar friction spot welding of aluminum and magnesium alloy. Scr Mater. 2013; 68:87–90. doi: 10.1016/j.scriptamat.2012.09.008
6.
KostkaA, CoelhoRS, dos SantosJ, Microstructure of friction stir welding of aluminium alloy to magnesium alloy. Scr Mater. 2009; 60:953–956. doi: 10.1016/j.scriptamat.2009.02.020
7.
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. doi: 10.1016/j.matchar.2015.01.008
8.
ChenX, YanJ, RenS, Microstructure and mechanical properties of Ti–6Al–4 V/Al1060 joints by ultrasonic-assisted brazing in air. Mater Lett. 2013; 95:197–200. doi: 10.1016/j.matlet.2012.12.105
9.
LiZ, XuZ, ZhuD, Control of Mg2Sn formation through ultrasonic-assisted transient liquid phase bonding of Mg to Al. J Mater Process Technol. 2018; 255:524–529. doi: 10.1016/j.jmatprotec.2018.01.003
10.
ZhaoWW, YanJC, YangW, Capillary filling process during ultrasonically soldering of aluminium matrix composites. Sci Technol Weld Join. 2008; 13(1):66–69. doi: 10.1179/174329308X271742
11.
XuZ, LiZ, LiJ, Control Al/Mg intermetallic compound formation during ultrasonic-assisted soldering Mg to Al. Ultrason Sonochem. 2018; 46:79–88. doi: 10.1016/j.ultsonch.2018.04.010
12.
LaiZ, PanC, DuH, Ultrasonic-assisted fluxless reactive bonding of Mg/Al dissimilar alloy using Zn–Al solder in air. Sci Technol Weld Join. 2018; 23(1):19–27. doi: 10.1080/13621718.2017.1314121
13.
DaiX, ZhangH, ZhangH, Joining of magnesium and aluminum via arc-assisted ultrasonic seam welding with Sn/Zn composite interlayer. Mater Lett. 2016; 178:235–238. doi: 10.1016/j.matlet.2016.04.064
ZhangJ, LuoG, WangY, An investigation on diffusion bonding of aluminum and magnesium using a Ni interlayer. Mater Lett. 2012; 83:189–191. doi: 10.1016/j.matlet.2012.06.014
16.
ZhaoLM, ZhangZD.Effect of Zn alloy interlayer on interface microstructure and strength of diffusion-bonded Mg–Al joints. Scr Mater. 2008; 58:283–286. doi: 10.1016/j.scriptamat.2007.10.006
17.
LiuL, TanJ, LiuX.Reactive brazing of Al alloy to Mg alloy using zinc-based brazing alloy. Mater Lett. 2007; 61:2373–2377. doi: 10.1016/j.matlet.2006.09.016
18.
WangZ, WangH, LiuL.Study on low temperature brazing of magnesium alloy to aluminum alloy using Sn–xZn solders. Mater Des. 2012; 39:14–19. doi: 10.1016/j.matdes.2012.02.021
19.
RaoHM, GhaffariB, YuanW, Effect of process parameters on microstructure and mechanical behaviors of friction stir linear welded aluminum to magnesium. Mater Sci Eng A. 2016; 651:27–36. doi: 10.1016/j.msea.2015.10.082
20.
ChenB, WangY, XiaoC, The formation mechanism of intermetallic compounds in Al/Mg friction-stir weld joint. Mater Sci Technol. 2018; 34(6):703–711. doi: 10.1080/02670836.2017.1410926
