caa a22 4500 463233565 CHVBK 20180405153249.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0368-1 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0368-1 Superplastic behavior of coarse-grained Al-Mg-Zn alloys [Elektronische Daten] [Marco García-Bernal, David Hernandez-Silva, Victor Sauce-Rangel] In the present study, the superplastic behavior of five Al-Mg-Zn alloys in coarse grain size condition has been studied. The alloys were melted, cast into ingots and hot rolled. The grain size of the rolled samples was 69, 45, 40, 30 and 35μm. Tensile test specimens were machined from the hot rolled plate in the rolling direction. Strain-rate-change (SCR) tests at temperatures between 300 and 450°C and strain rates between 1×10−4 and 1×10−1s−1 were carried out to determine the strain rate sensitivity of the flow stress. Finally, elongation-to-failure tests were conducted at those temperatures and strain rates, where the alloys showed high strain rate sensitivity. A maximal elongation of 400% was obtained for the 3.89wt.% Zn alloy. The results are explained in terms of solute drag creep as the principal deformation mechanism. Springer Science+Business Media, LLC, 2007 García-Bernal Marco Department of Metallurgical Engineering, Instituto Politécnico Nacional-ESIQIE, Apdo. Postal 118-392, 07738, Mexico, D.F., Mexico aut Hernandez-Silva David Department of Metallurgical Engineering, Instituto Politécnico Nacional-ESIQIE, Apdo. Postal 118-392, 07738, Mexico, D.F., Mexico aut Sauce-Rangel Victor Department of Metallurgical Engineering, Instituto Politécnico Nacional-ESIQIE, Apdo. Postal 118-392, 07738, Mexico, D.F., Mexico aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 3958-3963 0022-2461 42:11<3958 2007 42 10853 https://doi.org/10.1007/s10853-006-0368-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0368-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- García-Bernal Marco Department of Metallurgical Engineering, Instituto Politécnico Nacional-ESIQIE, Apdo. Postal 118-392, 07738, Mexico, D.F., Mexico aut NATIONALLICENCE 700 1- Hernandez-Silva David Department of Metallurgical Engineering, Instituto Politécnico Nacional-ESIQIE, Apdo. Postal 118-392, 07738, Mexico, D.F., Mexico aut NATIONALLICENCE 700 1- Sauce-Rangel Victor Department of Metallurgical Engineering, Instituto Politécnico Nacional-ESIQIE, Apdo. Postal 118-392, 07738, Mexico, D.F., Mexico aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 3958-3963 0022-2461 42:11<3958 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer