This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Study on Application Methods to Mitigate Galvanic Corrosion between Wheel Bearing and Aluminum Knuckle
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 15, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The substitution of aluminum for steel is an effective weight reduction solution where the application permits it; aluminum knuckles have been widely used for this reason. However, when an aluminum knuckle is assembled with the steel outer-ring of a wheel bearing without any means for galvanic corrosion prevention, the aluminum knuckle may severely corrode. Galvanic corrosion products can make it difficult to remove a wheel bearing from the aluminum knuckle during vehicle maintenance. Prevention of this problem is the focus of this paper. In this study, several concepts were examined to prevent or mitigate galvanic corrosion between a wheel bearing and its mating aluminum knuckle. One set of concepts involves using surface treated metal sleeves (using ferritic nitro-carburizing or a special coating). The sleeves were then inserted onto the outer-ring diameters of the wheel bearings prior to assembly into the steering knuckle. Another set of concepts that were investigated involves the application of thin coatings having high anti-corrosion properties. The coatings were applied directly to the bearing outer-ring knuckle piloting surfaces and bearing knuckle mounting flange. Samples were subjected to rigorous cyclic and galvanic corrosion tests. Test results for some concepts showed mitigation of galvanic corrosion between the knuckle and bearing.
CitationKim, S., Lee, S., and Park, H., "Study on Application Methods to Mitigate Galvanic Corrosion between Wheel Bearing and Aluminum Knuckle," SAE Technical Paper 2019-01-2136, 2019, https://doi.org/10.4271/2019-01-2136.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
|[Unnamed Dataset 4]|
|[Unnamed Dataset 5]|
|[Unnamed Dataset 6]|
|[Unnamed Dataset 7]|
- FROSIO , “Corrosion Protection - Inspector’s Book of Reference,” ISBN 87-989694-0-4, 2003.
- Zhang, X.G. , “Chapter 10: Galvanic Corrosion,” In: ‘Uhlig’s Corrosion Handbook. 3rd Edition. (John wiley & Sons, Inc., 2011).
- Popov, B. , “Chapter 5: Galvanic Corrosion,” In: Corrosion Engineering - Principles and Solved Problems. 1st Edition. (Elsevier, 2015).
- Van Phuong, N., Donghuyn, K., and Moon, S. , “Adhesion and Corrosion Resistance of Electrophoretic Print on “Electroless” Pint Coated AZ31 Mg Alloy,” J. Korean Inst. Surf. Eng. 51(6), 2018.
- ASTM B117 , Standard Practice for Operating Salt Spray (Fog) Apparatus (ASTM International).
- Heydarzadeh Dohi, M., Ebrahimi, M., Honarbakhsh Raouf, A., and Mahboubi, F. , “Comparative Study of the Corrosion Behavior of Plasma Nitocarburised AISI 4140 Steel before and after Post-Oxidation,” Materials and Design 31(9):4432-4437, 2010.
- Basu, A., Dutta Majumdar, J., Alphonsa, S.M. et al. , “Corrosion Resistance Improvement of High Carbon Low Alloy Steel by Plasma Nitriding,” Materials Letters 62:17-18, 2008.
- Wen, D.C. , “Microstructure and Corrosion Resistance of the Layers Formed on the Surface of Precipitation Hardenable Plastic Mold Steel by Plasma-Nitriding,” Applied Surface Science 256(3), 2009.