Effect of potential difference in CoXCrNiMoCB high-entropy alloy coatings on corrosion resistance improvement

被引：7
|
作者：
Jiang, Di [1 ]
Cui, Hongzhi [1 ,2 ]
Zhao, Xiaofeng [1 ]
Chen, Hao [1 ]
Ma, Guoliang [1 ]
Song, Xiaojie [1 ]
Han, Ye [1 ]
机构：
[1] Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Peoples R China
[2] Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China
来源：
MATERIALS LETTERS | 2023年 / 330卷
基金：
中国国家自然科学基金;
关键词：
High -entropy alloy; Corrosion; Laser cladding; First -principle calculation;
D O I：
10.1016/j.matlet.2022.133299
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
CoCrNiMoCB high-entropy alloy composite coatings were made by laser cladding, then the effects of Co concentration on corrosion resistance were studied. The addition of Co can reduce the composition difference between the FCC matrix and strengthening phase, thus reducing the potential difference and the driving force for galvanic corrosion. Through first-principle calculation, it was concluded that the addition of Co can increase the electronic work function and reduce the interface bonding energy, thus, enhancing the corrosion resistance and improving the interface bonding strength.
引用
收藏
页数：4
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