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Volume 6 Research & Reviews: Journal of Material Sciences
ISSN: 2321-6212 Magnetic Materials 2018
October 22-23, 2018
October 22-23, 2018 | Rome, Italy
3rd International Conference on
Magnetism and Magnetic Materials
The role of nano sized defects in the Fe-Cu alloy studied by magnetic nuclear scattering
K H Kim and D G Park
Korea Atomic Energy Research Institute, South Korea
Fe-Cu alloys are commonly used for a simulation of radiation damage of RPV steel because a neutron irradiation enhances
the copper precipitate which is known as the primary reason of a RPV embrittlement. An investigation of thermal aged
Fe-Cu model alloy has been a common and adequate alloy for a study of this purpose. For this purpose the selected annealing
temperature is sufficiently low (753 K) compare with the solubility limit (e.g. 1023 K for Fe-1wt% Cu). The behavior of copper
precipitations in the Fe-Cu alloy which is used as a simulation of radiation damage was investigated using a small angle neutron
scattering (SANS). The alloy was made through a melting with pure Fe and pure Cu. Initially, the alloy is 10% cold rolled, and
isothermally aged at 753 K for 20, 200 and 1800 min. The CRPs sizes, volume fractions and A-ratio of Fe-Cu alloy with aging
time are obtained from the SANS data analysis. The sizes of Cu precipitates nearly constant up to aging time of 200 min and
fast increased, but the volume fraction of Cu precipitates linearly increased with aging time. The investigation is focused on the
behavior of copper precipitates with aging time in the 10% cold rolled Fe-Cu alloy. The objective is to identify the aging time
dependence of precipitates evolution such as volume fraction and size distribution.
Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C6-030