TY - JOUR
T1 - Atom probe tomography study of alloying element distributions in Zr alloys and their oxides
AU - Dong, Yan
AU - Motta, Arthur T.
AU - Marquis, Emmanuelle A.
N1 - Funding Information:
This research was supported by the DOE Office of Nuclear Energy’s Nuclear Energy University Program and the University of Michigan College of Engineering.
PY - 2013
Y1 - 2013
N2 - A detailed study of alloying element distributions in the metal and oxygen rich regions of corroded Zr alloys and of the phases formed ahead of the oxide front was conducted using atom probe tomography (APT). A consistent sequence of sub-oxide phases is observed ahead of the ZrO2 oxide front, consisting of (i) a thin layer of equiatomic ZrO (occasionally slightly over and under stoichiometric) (ii) saturated solid solution Zr(O)sat, and (iii) a slowly decreasing oxygen profile into the metal. The results also show that the distribution of the alloying elements in the metal is more inhomogeneous than previously thought and that in the oxygen-rich phases enhanced segregation is observed, compared to the metal.
AB - A detailed study of alloying element distributions in the metal and oxygen rich regions of corroded Zr alloys and of the phases formed ahead of the oxide front was conducted using atom probe tomography (APT). A consistent sequence of sub-oxide phases is observed ahead of the ZrO2 oxide front, consisting of (i) a thin layer of equiatomic ZrO (occasionally slightly over and under stoichiometric) (ii) saturated solid solution Zr(O)sat, and (iii) a slowly decreasing oxygen profile into the metal. The results also show that the distribution of the alloying elements in the metal is more inhomogeneous than previously thought and that in the oxygen-rich phases enhanced segregation is observed, compared to the metal.
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U2 - 10.1016/j.jnucmat.2013.08.055
DO - 10.1016/j.jnucmat.2013.08.055
M3 - Article
AN - SCOPUS:84885361070
SN - 0022-3115
VL - 442
SP - 270
EP - 281
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3
ER -