Affiliation: | (1) Department of Materials Science and Engineering, Carnegie Mellon Univeristy, Pittsburgh, PA 15213, USA;(2) Present address: Tenaris Center for Industrial Research, Campana, B2804MHA, Argentina;(3) CEIT and TECNUM, University of Nevarra, E-20018 Conostia-San Sebastian, Basque County, Spain;(4) Present address: Rensselaer Polytechnique Insitute, Troy, NY 12180, USA |