TY - JOUR
T1 - Effect of impurity elements on localized corrosion of zirconium in chloride containing environment
AU - Tsutsumi, Yusuke
AU - Muto, Izumi
AU - Nakano, Shigeyuki
AU - Tsukada, Junichi
AU - Manaka, Tomoyo
AU - Chen, Peng
AU - Ashida, Maki
AU - Sugawara, Yu
AU - Shimojo, Masayuki
AU - Hara, Nobuyoshi
AU - Katayama, Hideki
AU - Hanawa, Takao
N1 - Funding Information:
This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, ), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. Cooperative Research Project of Research Center for Biomedical Engineering, Tokyo Medical and Dental University JSPS KAKENHI Grant Numbers 17K06835 25709064 and 19H04464 yes � 2020 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited http://creativecommons.org/licenses/by/4.0/
Funding Information:
This work was supported by JSPS KAKENHI. Grant Numbers 17K06835, 25709064, and 19H04464. Additionally, part of this study was supported by the Research Center for Biomedical Engineering.
Publisher Copyright:
© 2020 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited.
PY - 2020/11
Y1 - 2020/11
N2 - To clarify the mechanism of localized corrosion on zirconium in chloride environments, corrosion tests of zirconium and its alloys were performed using conventional and micron-scale measurement systems with surface areas of 0.35 cm2 and less than 0.04 cm2, respectively. The pitting potential significantly dropped by more than 1 V when zirconium was alloyed with over 10 mol% of tin. Zr4Sn and Zr5Sn3 intermetallics hindered the formation of passive films on the substrate. Additionally, tin was found on the surface of a commercially pure zirconium. From the micron-scale measurement results, the inclusion with the highest concentration of tin (at least 0.44 mol%) in the tested area was selected as the preferential initiation site for pitting corrosion. Thus, tin played an important role in determining the corrosion resistance of zirconium in chloride environments.
AB - To clarify the mechanism of localized corrosion on zirconium in chloride environments, corrosion tests of zirconium and its alloys were performed using conventional and micron-scale measurement systems with surface areas of 0.35 cm2 and less than 0.04 cm2, respectively. The pitting potential significantly dropped by more than 1 V when zirconium was alloyed with over 10 mol% of tin. Zr4Sn and Zr5Sn3 intermetallics hindered the formation of passive films on the substrate. Additionally, tin was found on the surface of a commercially pure zirconium. From the micron-scale measurement results, the inclusion with the highest concentration of tin (at least 0.44 mol%) in the tested area was selected as the preferential initiation site for pitting corrosion. Thus, tin played an important role in determining the corrosion resistance of zirconium in chloride environments.
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U2 - 10.1149/1945-7111/abc5d8
DO - 10.1149/1945-7111/abc5d8
M3 - Article
AN - SCOPUS:85096537216
SN - 0013-4651
VL - 167
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 14
M1 - 141507
ER -
