Počet záznamů: 1
Dependence of small-angle neutron scattering contrast on the difference in thermal expansions of phases in two-phase alloys
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SYSNO ASEP 0333204 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Dependence of small-angle neutron scattering contrast on the difference in thermal expansions of phases in two-phase alloys Tvůrce(i) Strunz, Pavel (UJF-V) RID, ORCID, SAI
Gilles, R. (DE)
Mukherji, D. (DE)
Hofmann, M. (DE)
Del Genovese, D. (DE)
Roesler, J. (DE)
Hoelzel, M. (DE)
Davydov, Vadim (UJF-V)Zdroj.dok. Journal of Applied Crystallography. - : Wiley - ISSN 0021-8898
Roč. 42, č. 6 (2009), s. 981-989Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova BASE SUPERALLOY SC16 ; SANS Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000271895700001 DOI 10.1107/S0021889809035353 Anotace Theoretical expressions describing small-angle neutron scattering (SANS) contrast dependence on temperature in the region where no phase-composition changes occur were derived for two-phase Ni superalloys. The theory is based on the difference in thermal expansion of the two primary phases, gamma and gamma'. The simulations show that the scattering contrast temperature evolution is significant enough to be considered in in situ SANS experiments with superalloys at elevated temperatures. The simulations performed show that the magnitude of the scattering contrast at room temperature is firmly connected with the particular shape of the scattering contrast temperature dependence. This fact can be used for determination of the scattering contrast without a knowledge of the compositions of the individual phases. The theoretical expressions derived for scattering contrast were proven experimentally on an Ni-Fe-base alloy, DT706.. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2010
Počet záznamů: 1