Galvanically Graded Interface: A Computational Model for Mitigating Galvanic Corrosion Between Magnesium and Mild Steel

被引:3
作者
Spies, Kurt A. [1 ]
Viswanathan, Vilayanur V. [1 ]
Soulami, Ayoub [1 ]
Hovanski, Yuri [1 ]
Joshi, Vineet V. [1 ]
机构
[1] Pacific Northwest Natl Lab, Richland, WA 99354 USA
来源
MAGNESIUM TECHNOLOGY 2019 | 2019年
关键词
Multimaterial; Joining; Magnesium; Alloy; Steel; Corrosion; ALUMINUM; ALLOYS; SVET; METALS; AZ91D; ZINC;
D O I
10.1007/978-3-030-05789-3_21
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The impact of a graded metallic spacer on the galvanic corrosion between magnesium and mild steel is investigated in this work using a COMSOL model based on a validated numerical model. A graded spacer of 4 mm thickness decreases the peak galvanic corrosion by 50% over a system without a spacer, and 37% over a system with an aluminum spacer. The impact of the electrochemical properties of spacer materials is also investigated.
引用
收藏
页码:135 / 144
页数:10
相关论文
共 46 条
[1]  
Amorim T., 2008, MODELLING COATING LI
[2]  
[Anonymous], 2000, BIMETALLIC CORROSION
[3]  
Atrens A, 2011, WOODHEAD PUBL MATER, P455
[4]   Validated numerical modeling of galvanic corrosion of zinc and aluminum coatings [J].
Cross, Samuel R. ;
Gollapudi, Srikant ;
Schuh, Christopher A. .
CORROSION SCIENCE, 2014, 88 :226-233
[5]   Computational design and optimization of multilayered and functionally graded corrosion coatings [J].
Cross, Samuel R. ;
Woollam, Richard ;
Shademan, Stephen ;
Schuh, Christopher A. .
CORROSION SCIENCE, 2013, 77 :297-307
[6]   IONIC CURRENT DENSITIES IN THE NEARFIELD OF A CORRODING IRON-COPPER GALVANIC COUPLE [J].
CROWE, CR ;
KASPER, RG .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1986, 133 (05) :879-887
[7]   Effect of aluminium spacer on galvanic corrosion between magnesium and mild steel using numerical model and SVET experiments [J].
Deshpande, Kiran B. .
CORROSION SCIENCE, 2012, 62 :184-191
[8]   Validated numerical modelling of galvanic corrosion for couples: Magnesium alloy (AE44)-mild steel and AE44-aluminium alloy (AA6063) in brine solution [J].
Deshpande, Kiran B. .
CORROSION SCIENCE, 2010, 52 (10) :3514-3522
[9]   Experimental investigation of galvanic corrosion: Comparison between SVET and immersion techniques [J].
Deshpande, Kiran B. .
CORROSION SCIENCE, 2010, 52 (09) :2819-2826
[10]  
DOIG P, 1979, J ELECTROCHEM SOC, V126, P2057, DOI 10.1149/1.2128861