Gupta, A and Srivastava, C (2021) Temperature driven texture and grain boundary engineering of electrodeposited β-Sn coatings and its effect on the coating corrosion behaviour: Five-parameter grain boundary character distribution analysis study. In: Scripta Materialia, 196 .
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Abstract
Sn coatings were electrodeposited at four different temperatures (24 Ë�C, 47 Ë�C, 70 Ë�C, and 80 Ë�C) over mild steel. Electrochemical impedance spectroscopy revealed the highest and lowest corrosion resistance for Sn coating fabricated at 70 Ë�C (Sn3 coating) and 80 Ë�C, respectively. Electron backscattered diffraction technique was utilized to correlate the electrochemical properties with the coating texture. A significant increase in the low angle grain boundary fraction was noticed with an increase in the electrodeposition temperature. Five-parameter grain boundary character distribution analysis revealed that the highest fraction of (031)01 Ì 3 twin boundaries at 62.8Ë�/100 misorientation and a high fraction of exposed low energy {100} planar orientations led to the highest corrosion resistance for Sn3 coating. Whereas a low fraction of (031)01 Ì 3 twin boundaries with a high fraction of exposed high energy â��near-(110)â�� planar orientations led to the poor corrosion resistance of Sn coating fabricated at 80 Ë�C. © 2021
| Item Type: | Journal Article |
|---|---|
| Publication: | Scripta Materialia |
| Publisher: | Acta Materialia Inc |
| Additional Information: | The copyright of this article belongs to Acta Materialia Inc |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 24 Feb 2021 10:10 |
| Last Modified: | 24 Feb 2021 10:10 |
| URI: | http://eprints.iisc.ac.in/id/eprint/67994 |
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