The effect of copper and manganese on magnetic minor hysteresis loops in neutron irradiated Fe model alloys

Autor:	Satoshi Takahashi, Katsuyuki Ara, Takuya Yamamoto, Satoru Kobayashi, Yasuhiro Kamada, G.R. Odette, Hiroaki Kikuchi, D. Klingensmith
Rok vydání:	2009
Předmět:	Nuclear and High Energy Physics Materials science Analytical chemistry chemistry.chemical_element Manganese Fluence Copper Hysteresis Nuclear Energy and Engineering chemistry General Materials Science Neutron Irradiation Neutron irradiation Scaling Nuclear chemistry
Zdroj:	Journal of Nuclear Materials. 384:109-114
ISSN:	0022-3115
Popis:	Changes of magnetic minor hysteresis loops in pure Fe, Fe–1 wt% Mn, Fe–0.9 wt% Cu, and Fe–0.9 wt% Cu–1 wt% Mn model alloys after neutron irradiation have been studied. Minor-loop coefficients which are obtained from scaling relations between minor-loop parameters and in proportion to internal stress, were found to decrease in all model alloys after the irradiation to a fluence of 3.32 × 1019 n cm−2. The decrease of the coefficients is larger for alloys including Cu and is enhanced by 1 wt% Mn addition. Such decrease implying the reduction of internal stress during irradiation is in contrast with changes of yield strength after the irradiation that increase with Cu and Mn contents. A qualitative explanation was given on the basis of the preferential formation of Cu precipitates along pre-existing dislocations which reduces internal stress of the dislocations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7c060a4f6dd2891dc7b6e131ea5d8da3 https://doi.org/10.1016/j.jnucmat.2008.10.031 Zobrazit plný text záznamu Full Text from ScienceDirect