Temperature dependence of the lattice parameter and Debye-Waller factor of a high-chromium pressure-vessel steel

Autor:	V. V. Sumin, V. M. Chernov, S. G. Sheverev, V. G. Simkin, M. V. Leont’eva-Smirnova
Rok vydání:	2009
Předmět:	Diffraction Materials science Alloy chemistry.chemical_element Thermodynamics Crystal structure engineering.material Condensed Matter Physics Spectral line Neutron temperature Chromium Crystallography Lattice constant chemistry Materials Chemistry engineering Debye–Waller factor
Zdroj:	The Physics of Metals and Metallography. 108:600-605
ISSN:	1555-6190 0031-918X
DOI:	10.1134/s0031918x09120114
Popis:	The method of thermal neutron diffraction has been used to study samples of the EK-181 steel at temperatures of 15 to 973 K in an IBR-2 reactor (Joint Institute for Nuclear Research (JINR)). Temperature dependences of the lattice parameter, internal textural stresses (of the third kind), and the Debye-Waller factor of this steel have been calculated from diffraction spectra by the Rietveld method. It has been found that at low temperatures the temperature dependence of the lattice parameter in the EK-181 steel (RUSFER EK-181) differs from the corresponding dependence in pure iron and binary iron-chromium alloys containing 12 and 16% Cr. Also, a broadening of the (200) reflection has been observed in the diffraction spectra of the EK-181 steel and the Fe-12Cr alloy, while it is not detected in the spectra of Fe-16Cr and pure iron.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5975b3df70e7bf2270b437865292bc24 https://doi.org/10.1134/s0031918x09120114 Zobrazit plný text záznamu Full text from SpringerLink