Fig. 15 — A — STEM HAADF image and corresponding composition EDS map; B — corresponding EDS elemental maps of the grain boundary region in Aural2T7 to AA5754O spot weld zone showing two different morphologies of AlMgSi phase shown in C and D along with corresponding electron diffraction patterns showing Al0.45Mg1.55Si phase. The morphology shown in C has a core of MgSiSr. minum Alloy Products. 2014. Annual Book of ASTM Standards. ASTM, West Conshohocken, Pa, Vol. 02.02. 12. Kang, J., McDermid, J. R., and Bruhis, M. 2013. Determination of the constitutive behavior of AA6022-T4 aluminum alloy spot welds at large strains. Materials Science and Engineering A A567: 95–100. 13. Kang, J., Mc- Dermid, J. R., and Bruhis, M. 2012. Measuring the mechanical properties of aluminum sheets and their resistance spot welds at large strains using digital image correlation coupled with a modified shear test. 2012 SAE World Congress, paper number 2012-01-0181. 14. ASTM B557-14, Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products. 2014 Annual Book of ASTM Standards. ASTM, West Conshohocken, Pa., Vol. 02.02. 15. GOM mbH. 2008. Aramis-Deformation Measurement Using the Grating Method, User’s Manual. V6.02, Braunschweig, Germany. 16. Kaufman, J. G. 2000. Introduction to Aluminum Alloys and Tempers, ASM International, Materials Park, Ohio. 17. Zhang, H., and Senkara, J. 2011. Resistance Welding: Fundamentals and Applications, Second Edition, CRC Press. 18. North American Die Casting Association: High Integrity Die Castings. 2008. Arlington Heights, Ill.: North American Die Casting Association. WELDING RESEARCH 256-s WELDING JOURNAL / JULY 2016, VOL. 95 Fig. 16 — A — STEM bright field and corresponding EDS combination map; B — corresponding elemental maps of Aural2T7 to AA6022T4 spot weld; C — the needleshaped phase in the grain boundary area is Al5FeSi shown in higher magnification. A A B B C C D
Welding Journal | July 2016
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