Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: First-principles modeling of anisotropic anodic dissolution of metals and alloys in corrosive environments
作者: Ma, Hui;  Chen, Xing-Qiu;  Li, Ronghan;  Wang, Shoulong;  Dong, Junhua;  Ice, Wei
发表日期: 2017-5-15
摘要: There have been extensive experimental observations of the anisotropic corrosion behavior of metals and alloys, and their mechanisms were assumed to be correlated with the so-called surface energy or the work function. However, to date, a specified mechanism or theory to interpret anisotropic corrosion behavior remains unclear. Here, we determine the anisotropic anodic dissolution of metals and alloys in corrosive environments by developing a formula to specify the relationship between the electrode potential (U) and the current density (I) by considering the basic parameters of our defined surface energy density (E-surf / p) and the work function (phi). Therefore, we build an ab initio model to evaluate the anisotropic anodic dissolution behavior of metals and alloys using the inputs obtained within density functional theory. This theory is further validated in the case of variations in the crystallographic planes of Mg. Moreover, some selected alloying additions such as Ga, Cd, Hg, In, As, and Cr are theoretically elucidated to effectively reduce the anodic dissolution rates of the Mg matrix to some extent, in close agreement with available experimental observations. This model is capable of predicting the anisotropic anodic dissolution behavior, providing a promising perspective for designing better corrosion -resistant alloys. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.

Recommended Citation:
Ma, Hui,Chen, Xing-Qiu,Li, Ronghan,et al. First-principles Modeling Of Anisotropic Anodic Dissolution Of Metals And Alloys In Corrosive Environments[J]. Acta Materialia,2017,130:137-146.

SCI Citaion Data:
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Ma, Hui]'s Articles
 [Chen, Xing-Qiu]'s Articles
 [Li, Ronghan]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Ma, Hui]‘s Articles
 [Chen, Xing-Qiu]‘s Articles
 [Li, Ronghan]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to  Add to Digg  Add to Reddit 
所有评论 (0)
内 容:
Email:  *
验证码:   刷新
标 题:
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.



Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace