caa a22 4500 46322180X CHVBK 20180405153214.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10853-006-1185-2 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1185-2 Modeling of precipitation hardening in Mg-based alloys [Elektronische Daten] [Alexander Katsman, Shalom Cohen, Menachem Bamberger] This work deals with the development of Mg-based alloys with enhanced properties at elevated temperatures. This is achieved by precipitation of binary phases such as MgZn2 and Mg2Sn during the aging of these alloys. The aim of the present work is to develop and calibrate a model for precipitation hardening in Mg-based alloys, as different types of precipitates form simultaneously. The modified Langer-Schwartz approach, while taking into account nucleation, growth and coarsening of the new phase precipitations, was used for the analysis of precipitates' evolution and precipitation hardening during aging of Mg-based alloys. Two strengthening mechanisms associated with particle-dislocation interaction (shearing and bypassing) were considered to be operating simultaneously due to particle size-distribution. Parameters of the model, R N i and k σ i , were found by fitting of calculated densities and average sizes of precipitates with ones estimated from experiments. The effective diffusion coefficients of phase formation processes, which determine the strengthening kinetics, were estimated from the hardness maximum positions on the aging curves. Springer Science+Business Media, LLC, 2007 Katsman Alexander Department of Materials Engineering, Technion - Israel Institute of Technology, Technion City, 32000, Haifa, Israel aut Cohen Shalom Department of Materials Engineering, Technion - Israel Institute of Technology, Technion City, 32000, Haifa, Israel aut Bamberger Menachem Department of Materials Engineering, Technion - Israel Institute of Technology, Technion City, 32000, Haifa, Israel aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/16(2007-08-01), 6996-7003 0022-2461 42:16<6996 2007 42 10853 https://doi.org/10.1007/s10853-006-1185-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1185-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Katsman Alexander Department of Materials Engineering, Technion - Israel Institute of Technology, Technion City, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Cohen Shalom Department of Materials Engineering, Technion - Israel Institute of Technology, Technion City, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Bamberger Menachem Department of Materials Engineering, Technion - Israel Institute of Technology, Technion City, 32000, Haifa, Israel aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/16(2007-08-01), 6996-7003 0022-2461 42:16<6996 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer