ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
We tried to join steel to Al-Mg alloy using a resistance spot welding method. The effectof Mg in Al-Mg alloy on the strength and the interfacial microstructure of the joint was investigated.Additionally, the effect of insert metal of commercially pure aluminum, which was put into thebonding interface, on the joint strength was examined. The obtained results were as follows. Thecross-tensile strength of a joint between SS400 steel and commercially pure aluminum (SS400/Al)was high and fracture occurred in the aluminum base metal. However, the strength of a jointbetween SS400 and Al-Mg alloy was remarkably low and less than 30% of that of the SS400/Aljoint. An intermetallic compound layer developed so thickly at the bonded interface of theSS400/Al-Mg alloy joint that the joint strength decreased. The intermetallic compound layerdeveloped more thickly as Mg content in the Al-Mg alloy increased. Using insert metal ofcommercially pure aluminum containing little Mg successfully improved the strength of theSS400/Al-Mg alloy joint and the strength was equivalent to that of the base metal
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.15-17.381.pdf
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