DFT study of the effects of interstitial impurities on the resistance of Cr-doped γ-Fe(111) surface dissolution corrosion

Verfasser / Beitragende:
[Cheng Han, Caili Zhang, Xinglong Liu, Shengyi Zhuang, Hui Huang, Peide Han, Xiaolei Wu]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/8(2015-08-01), 1-9
Format:
Artikel (online)
ID: 605513082
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024 7 0 |a 10.1007/s00894-015-2755-5  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00894-015-2755-5 
245 0 0 |a DFT study of the effects of interstitial impurities on the resistance of Cr-doped γ-Fe(111) surface dissolution corrosion  |h [Elektronische Daten]  |c [Cheng Han, Caili Zhang, Xinglong Liu, Shengyi Zhuang, Hui Huang, Peide Han, Xiaolei Wu] 
520 3 |a Using density-functional calculations, we studied the interaction between interstitial impurities (N, C) and γ-Fe(111) surfaces doped, or not, with Cr, as well as the effect of Cr doping on the dissolution corrosion resistance of the γ-Fe(111) surface. The elementary processes studied afforded microscopic insights into the formation of a Cr-depleted zone, a phenomenon that leads to local corrosion of the stainless steel surface. The aim of this work was to study, at the atomic scale, the effects of N and C on the segregation behavior of Cr and the synergetic effect between co-doped atoms on the resistance to dissolution corrosion of austenitic stainless steel surfaces. The results showed that interstitial impurities prefer to be trapped at near-surface sites, which can impact the segregation behavior of Cr such that it shifts from the surface to the subsurface. Electrode potential calculations and density of states analysis demonstrated that doping with Cr or inserting interstitial impurities into the solid solution can improve the surface corrosion resistance of an fcc Fe substrate, but detrimental effects on the surface corrosion resistance are induced by interactions between Cr and interstitial impurity atoms in co-doped surfaces. The formation of near-surface Cr carbides and nitrides (speculated to be Cr2N and Cr23C6 due to the results obtained for particular co-doped surfaces) was also noted. The results of our theoretical calculations explain some of the experimental results observed at the atomic scale. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Cr segregation  |2 nationallicence 
690 7 |a Interstitial impurities  |2 nationallicence 
690 7 |a Dissolution corrosion  |2 nationallicence 
690 7 |a Electrode potential  |2 nationallicence 
690 7 |a DFT  |2 nationallicence 
700 1 |a Han  |D Cheng  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
700 1 |a Zhang  |D Caili  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
700 1 |a Liu  |D Xinglong  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
700 1 |a Zhuang  |D Shengyi  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
700 1 |a Huang  |D Hui  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
700 1 |a Han  |D Peide  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
700 1 |a Wu  |D Xiaolei  |u State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, 100080, Beijing, People's Republic of China  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/8(2015-08-01), 1-9  |x 1610-2940  |q 21:8<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-015-2755-5  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-015-2755-5  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Han  |D Cheng  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Caili  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liu  |D Xinglong  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhuang  |D Shengyi  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Huang  |D Hui  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Han  |D Peide  |u College of Materials Science and Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, 030024, Taiyuan, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wu  |D Xiaolei  |u State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, 100080, Beijing, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/8(2015-08-01), 1-9  |x 1610-2940  |q 21:8<1  |1 2015  |2 21  |o 894