TY - JOUR
T1 - Mechanistic understanding of the dissolution behavior of the precipitates in 12cr martensitic steel during potentiodynamic polarization in strong alkaline solutions
AU - Wang, Zihao
AU - Takeda, Yoichi
AU - Zhong, Xiangyu
AU - Shoji, Tetsuo
AU - Xu, Jian
AU - Watanabe, Yasuaki
AU - Yamashita, Mitsuo
AU - Izumi, Sakae
N1 - Publisher Copyright:
© 2020 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited.
PY - 2020/11
Y1 - 2020/11
N2 - Cr was reported to result in a selective dissolution of the Laves phase in 12Cr steel in strong alkaline solutions. However, the current study concludes that Cr does not cause the dissolution of the Laves phase, but plausibly is responsible for the dissolution of Cr carbide at a higher potential. Further, the shoulder of the Laves phase peak resulted from the change of magnetite to hematite on the surface, and the shoulder of the carbide peak resulted from the transpassive behavior of Cr as alloying elements in the matrix.
AB - Cr was reported to result in a selective dissolution of the Laves phase in 12Cr steel in strong alkaline solutions. However, the current study concludes that Cr does not cause the dissolution of the Laves phase, but plausibly is responsible for the dissolution of Cr carbide at a higher potential. Further, the shoulder of the Laves phase peak resulted from the change of magnetite to hematite on the surface, and the shoulder of the carbide peak resulted from the transpassive behavior of Cr as alloying elements in the matrix.
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U2 - 10.1149/1945-7111/abc30c
DO - 10.1149/1945-7111/abc30c
M3 - Article
AN - SCOPUS:85095915759
SN - 0013-4651
VL - 167
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 14
M1 - 141501
ER -
