TY - JOUR
T1 - First-Principles Investigation on Work Function of Martensitic Carbon Steels
T2 - Effect of Interstitial Carbon on Anodic Dissolution Resistance
AU - Kadowaki, Mariko
AU - Saengdeejing, Arkapol
AU - Muto, Izumi
AU - Chen, Ying
AU - Doi, Takashi
AU - Kawano, Kaori
AU - Sugawara, Yu
AU - Hara, Nobuyoshi
N1 - Publisher Copyright:
© 2021 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited.
PY - 2021/11
Y1 - 2021/11
N2 - The effect of interstitial carbon on the work function and the dissolution resistance of martensitic carbon steels was investigated. Ultraviolet photoelectron spectroscopy measurements of 0.001%C, 0.44%C, and 0.88%C specimens showed that the work function of steels increased with the amount of interstitial carbon. In addition, first-principles calculations indicated that the presence of interstitial carbon clearly increased the work function on both the (110) and (100) orientation surfaces. The immersion tests and potentiodynamic polarization measurements of the specimens were conducted in 50 mM C8H5KO4 at pH 4.0, and it was clarified that the anodic dissolution reaction was suppressed as the amount of interstitial carbon increased. The improvement in work function appeared to be related to the superior anodic dissolution resistance.
AB - The effect of interstitial carbon on the work function and the dissolution resistance of martensitic carbon steels was investigated. Ultraviolet photoelectron spectroscopy measurements of 0.001%C, 0.44%C, and 0.88%C specimens showed that the work function of steels increased with the amount of interstitial carbon. In addition, first-principles calculations indicated that the presence of interstitial carbon clearly increased the work function on both the (110) and (100) orientation surfaces. The immersion tests and potentiodynamic polarization measurements of the specimens were conducted in 50 mM C8H5KO4 at pH 4.0, and it was clarified that the anodic dissolution reaction was suppressed as the amount of interstitial carbon increased. The improvement in work function appeared to be related to the superior anodic dissolution resistance.
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U2 - 10.1149/1945-7111/ac3276
DO - 10.1149/1945-7111/ac3276
M3 - Article
AN - SCOPUS:85120816019
VL - 168
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 11
M1 - 111503
ER -