An investigation on joining of Al6061-T6 to AZ31B by microwave hybrid heating using active braze alloy as an interlayer. (August 2017)

• Record Type: Journal Article
• Authors: Tamang, S.; Aravindan, S.
• Is Part Of: Journal of manufacturing processes. Volume 28:Part 1(2017)
• Page Start: 94
• Page End: 100
• Publication Date: 2017-08
• Subjects: Active -- Braze -- AZ31B -- Al6061-T6 -- Microwave -- Hybrid; Production management -- Data processing -- Periodicals; Manufacturing processes -- Periodicals; Procestechnologie; Productietechniek; Production -- Gestion -- Informatique -- Périodiques; Fabrication -- Périodiques; Manufacturing processes; Production management -- Data processing; Periodicals; 670.5
• DOI: 10.1016/j.jmapro.2017.05.027
• Languages: English
• ISSNs: 1526-6125

Abstract

Abstract: Active braze alloy is used as an interlayer material to join AZ31B to Al6061-T6 by microwave hybrid heating. The phase compositions of the reaction layer and the microstructure aspects are investigated using Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray spectroscopy (EDX) and X-ray diffraction (XRD). Intermetallic compounds of Aluminum, Magnesium, Silver and Oxygen i.e. Mg55 Al40 Ag5, Al60 Mg38 Ag2, MgAl2 O4 and TiO were found to be formed in the reaction layer. Hardness of intermetallic towards the aluminum parent material is high i.e. 4.31 GPa. This is due to the formation of intermetallic that are brittle and hard in nature. The tensile shear strength of the joint was evaluated. The formation of intermetallic compounds i.e. Al60 Mg38 Ag2, MgAl2 O4 and TiO are responsible for the poor strength.