Počet záznamů: 1
High temperature stability of Cr-carbides in an experimental Co Re-based alloy
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SYSNO ASEP 0346618 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název High temperature stability of Cr-carbides in an experimental Co Re-based alloy Tvůrce(i) Mukherji, D. (DE)
Klauke, M. (DE)
Strunz, Pavel (UJF-V) RID, ORCID, SAI
Zizak, I. (DE)
Schumacher, G. (DE)
Wiedenmann, A. (DE)
Rösler, J. (DE)Zdroj.dok. International Journal of Materials Research. - : Walter de Gruyter - ISSN 1862-5282
Roč. 101, č. 3 (2010), s. 340-348Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova Co-Re base alloy ; Cr-carbide stability ; Electron microscopy Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000276612700003 DOI 10.3139/146.110282 Anotace The stability of the microstructure at high temperatures was studied in an experimental Co Re-based alloy. The experimental alloy is mainly strengthened by Cr-carbides, particularly by those in the form of thin lamellar plates. Electron microscopic investigation on samples exposed for up to 1000 h to temperatures of 1000 and 1200 degrees C showed that Cr23C6 type carbides present in the alloy in different morphologies are unstable at these temperatures. It was also observed that the alloy hardness dropped after exposing the samples to elevated temperatures and much of this loss occurred within the first 100 h. In-situ diffraction measurements with synchrotron radiation showed that carbide dissolution started as early as 3 11 of holding at 1000 degrees C. Moreover, in-situ small angle neutron scattering results indicated that the carbides at the grain boundaries and the blocky carbides dissolve first and then the thin lamellar carbides. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2011
Počet záznamů: 1