TY - JOUR
T1 - Irradiation-induced precipitation in a SUS316 stainless steel using three-dimensional atom probe
AU - Hatakeyama, M.
AU - Yamagata, I.
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - Precipitation and segregation were investigated in a compositionally modified 316 austenitic stainless steel, neutron-irradiated at 862 K using a three-dimensional atom probe. In the solution-annealed specimen, Mo, Ti, Nb, C and P enrichment were observed in a silicide, with nominal composition Fe 3Cr2Ni2Mo2Si2. In a Ti-rich carbide, nominaling Fe5Cr8Ni10Mo 2Ti11Si2C6, enrichment of Mo, Si, O, and Nb was observed. Radiation-induced segregation (RIS) at the precipitate-matrix interface was also investigated at an atomic scale. RIS of Ni and P atoms, which are undersized in Fe, was also analyzed around the interface of the Ti-rich carbide and matrix. Results suggest that the carbide-matrix interface is a sink with an interstitial bias. In the cold-worked specimen, complex-precipitates consisting of silicide and carbide were formed.
AB - Precipitation and segregation were investigated in a compositionally modified 316 austenitic stainless steel, neutron-irradiated at 862 K using a three-dimensional atom probe. In the solution-annealed specimen, Mo, Ti, Nb, C and P enrichment were observed in a silicide, with nominal composition Fe 3Cr2Ni2Mo2Si2. In a Ti-rich carbide, nominaling Fe5Cr8Ni10Mo 2Ti11Si2C6, enrichment of Mo, Si, O, and Nb was observed. Radiation-induced segregation (RIS) at the precipitate-matrix interface was also investigated at an atomic scale. RIS of Ni and P atoms, which are undersized in Fe, was also analyzed around the interface of the Ti-rich carbide and matrix. Results suggest that the carbide-matrix interface is a sink with an interstitial bias. In the cold-worked specimen, complex-precipitates consisting of silicide and carbide were formed.
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U2 - 10.1016/j.jnucmat.2012.11.048
DO - 10.1016/j.jnucmat.2012.11.048
M3 - Article
AN - SCOPUS:84884905276
SN - 0022-3115
VL - 442
SP - S846-S850
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3 SUPPL.1
ER -