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Characterization of rapidly solidified powder of high-speed steel
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SYSNO ASEP 0339990 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Characterization of rapidly solidified powder of high-speed steel Tvůrce(i) Miglierini, M. (SK)
Lančok, Adriana (UACH-T) ORCID, RID, SAI
Kusý, M. (SK)Zdroj.dok. Hyperfine Interactions - ISSN 0304-3843
Roč. 190, 1-3 (2009), s. 51-57Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Rapidly solidified powder ; Tool steel ; Mössbauer spectroscopy Vědní obor RIV CA - Anorganická chemie CEP GP203/07/P011 GA ČR - Grantová agentura ČR CEZ AV0Z40320502 - UACH-T (2005-2011) DOI 10.1007/s10751-009-9921-z Anotace Rapidly solidified particles of high-speed steel were classified into several granulometric fractions ranging from less than 25 mu m up to more than 160 mu m in diameter and studied by transmission and conversion electron Mossbauer spectrometry. The former was applied at 300, 77, and 5 K. Presence of magnetic and a non-magnetic crystallographic phase was observed. They were identified by X-ray diffraction as ferrite (bec-Fe) and austenite (fcc-Fe), respectively. In addition, M4C3 and M2C carbides were found. The magnetic phase diminishes in the bulk of the particles bigger than 63 mu m (transmission Mossbauer spectroscopy) and/or 80 mu m (X-ray diffraction). Its contribution is higher at the surface of the particles (conversion electron Mossbauer spectrometry). The origin of the non-magnetic phase is not changed even at 5 K. Reasonable agreement is achieved between Mossbauer and X-ray diffraction data as far as the fraction of Fe-containing phases is concerned. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2010
Počet záznamů: 1