Designing strategy for corrosion-resistant Mg alloys based on film-free and film-covered models

作     者：Pengyu Zhao Tao Ying Fuyong Cao Xiaoqin Zeng Wenjiang Ding 

作者机构：National Engineering Research Center of Light AlloysShanghai Jiao Tong UniversityShanghai 200240PR China Center for Marine Materials Corrosion and ProtectionCollege of MaterialsXiamen University361005PR China 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2023年第11卷第9期

页      面：3120-3129页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by Shanghai Science and Technology Committee (No.18511109300) Science and Technology Commission of the CMC (2019JCJQZD27300) Foundation from Shanghai Jiao Tong University (AF0500132,AF0500149) Funding from Center of Hydrogen Science of Shanghai Jiao Tong University 

主　　题：Magnesium Corrosion Modeling Electrochemistry 

摘      要：Mathematical models were proposed to clarify the effect of alloying on corrosion of magnesium alloys based on film-free and film-covered status. The models are applicable to explain the “barrier effect by cathodes and the “analogous Hall-Petch relationship between corrosion rates and grain size. The slope of corrosion rates versus alloying content is determined by the dissolution ability of film-free substrate and the hindering effects by corrosion product film. Designing strategy for corrosion-resistant Mg alloys is established.