caa a22 4500 467927014 CHVBK 20180406152932.0 cr unu---uuuuu 170328e20060401xx s 000 0 eng 10.1134/S0020168506040042 doi (NATIONALLICENCE)springer-10.1134/S0020168506040042 Phase separation and ordering in the Fe-Co system [Elektronische Daten] [Yu. Ustinovshikov, B. Pushkarev, I. Sapegina] The Fe50Co50, Fe65Co35, and Fe35Co65 alloys heat-treated between 500 and 1300°C were characterized by x-ray diffraction and transmission electron microscopy. The surface layer of the alloys was found to phase-separate in the range 900-1300°C, leading to the formation of alternating α and γ zones on the order of 0.5 μm in thickness. Phase separation in the bulk of the alloys led to precipitation of an fcc phase, with a volume fraction no greater than 0.1. In the ordering region, the volume fraction of the B2 phase was also no greater than 0.1. The phase-separation region was shown to be divided from the ordering region by a solid-solution phase. Below 550°C, the alloys undergo a phase transformation accompanied by a slight increase in lattice parameter. Comparison with a similar transformation of the Fe60Cr30Co10 alloy suggests that, under certain conditions, this transformation may lead to a significant rise in coercivity. The results are represented in a modified Fe-Co phase diagram. Pleiades Publishing, Inc., 2006 Ustinovshikov Yu Physicotechnical Institute, Udmurt Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kirova 132, 426000, Izhevsk, Russia aut Pushkarev B. Physicotechnical Institute, Udmurt Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kirova 132, 426000, Izhevsk, Russia aut Sapegina I. Physicotechnical Institute, Udmurt Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kirova 132, 426000, Izhevsk, Russia aut Inorganic Materials Nauka/Interperiodica 42/4(2006-04-01), 354-359 0020-1685 42:4<354 2006 42 10789 https://doi.org/10.1134/S0020168506040042 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506040042 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ustinovshikov Yu Physicotechnical Institute, Udmurt Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kirova 132, 426000, Izhevsk, Russia aut NATIONALLICENCE 700 1- Pushkarev B. Physicotechnical Institute, Udmurt Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kirova 132, 426000, Izhevsk, Russia aut NATIONALLICENCE 700 1- Sapegina I. Physicotechnical Institute, Udmurt Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kirova 132, 426000, Izhevsk, Russia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/4(2006-04-01), 354-359 0020-1685 42:4<354 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer