caa a22 4500 463224590 CHVBK 20180405153223.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10853-006-1212-3 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1212-3 Quantitative analysis for kinetics of reactive diffusion in the Fe-Cr system [Elektronische Daten] [M. Kajihara, T. Yamashina] In the binary Fe-Cr system, the γ phase with the face-centered cubic structure becomes a stable intermediate phase sandwiched between the Fe-rich α1 and Cr-rich α2 phases with the body-centered cubic structure in the temperature range between T=1,119 and 1,185K. Within this temperature range, the reactive diffusion between the α1 and α2 phases was experimentally observed by Nishizawa and Chiba (Nishizawa and Chiba (1970) J Jap Inst Met 34:629). In their experiment, Fe/Cr diffusion couples were annealed at T=1,123-1,163K for up to 600h. Although the γ phase should be formed due to annealing, it was not recognized in any annealed diffusion couples. The mathematical model reported in a previous study (2004 Acta Mater 52:1193) was used to analyze their experimental results theoretically. In order to provide the boundary conditions for the analysis, the phase diagram in the Fe-Cr system was computed by a CALPHAD technique. The analysis indicates that the γ phase is actually produced at the interface but its thickness is less than 1μm even after annealing at T=1,163K for 600h. Thus, the γ phase is practically invisible under their experimental conditions. The analysis provides the experimental conditions for the γ phase to grow to observable thicknesses. Springer Science+Business Media, LLC, 2006 Kajihara M. Department of Materials Science and Engineering, Tokyo Institute of Technology, 226-8502, Midori-ku, Yokohama, Japan aut Yamashina T. Graduate School, Tokyo Institute of Technology, 226-8502, Midori-ku, Yokohama, Japan aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2432-2442 0022-2461 42:7<2432 2007 42 10853 https://doi.org/10.1007/s10853-006-1212-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1212-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kajihara M. Department of Materials Science and Engineering, Tokyo Institute of Technology, 226-8502, Midori-ku, Yokohama, Japan aut NATIONALLICENCE 700 1- Yamashina T. Graduate School, Tokyo Institute of Technology, 226-8502, Midori-ku, Yokohama, Japan aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2432-2442 0022-2461 42:7<2432 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer