caa a22 4500 46323426X CHVBK 20180405153251.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10853-006-1162-9 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1162-9 Creep behavior of AZ31 magnesium alloy in low temperature range between 423K and 473K [Elektronische Daten] [Ho-Kyung Kim, Woo-Jin Kim] The deformation behavior of coarse-grained AZ31 magnesium alloy was examined in creep at low temperatures below 0.5T m and low strain rates below 5×10−4s−1. The creep test was conducted in the temperature range between 423 and 473K (0.46-0.51T m) under various constant stresses covering the strain rate range 5×10−8s−1-5×10−4s−1. All of the creep curves exhibited two types depending on stress level. At low stress (σ/G<4×103), the creep curve was typical of class I behavior. However, at high stresses (σ/G>4×103), the creep curve was typical of class II. At the low stress level, deformation could be well described by solute drag creep whereas at the high stress level, deformation could be well described by dislocation climb creep associated with pipe diffusion or lattice diffusion. The transition of deformation mechanism from solute drag creep to dislocation climb creep, on the other hand, could be explained in terms of solute-atmosphere-breakaway concept. Springer Science+Business Media, LLC, 2007 Kim Ho-Kyung Department of Automotive Engineering, Seoul National University of Technology, 172 Kongnung-dong, Nowon-gu, 139-743, Seoul, Korea aut Kim Woo-Jin Department of Materials Science and Engineering, Hongik University, 72-1 Sangsu-dong, Mapo-gu, 121-791, Seoul, Korea aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/15(2007-08-01), 6171-6176 0022-2461 42:15<6171 2007 42 10853 https://doi.org/10.1007/s10853-006-1162-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1162-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Ho-Kyung Department of Automotive Engineering, Seoul National University of Technology, 172 Kongnung-dong, Nowon-gu, 139-743, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Woo-Jin Department of Materials Science and Engineering, Hongik University, 72-1 Sangsu-dong, Mapo-gu, 121-791, Seoul, Korea aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/15(2007-08-01), 6171-6176 0022-2461 42:15<6171 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer