Chromium partitioning induced evolution of texture, grain boundary constitution, and corrosion behavior of CusbndCr coatings electrodeposited at different temperatures

Lala, SRF and Singh, AP and Gireesh, KV and Srivastava, C (2024) Chromium partitioning induced evolution of texture, grain boundary constitution, and corrosion behavior of CusbndCr coatings electrodeposited at different temperatures. In: Materials Characterization, 210 .

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Abstract

The corrosion behavior of CusbndCr coating electrodeposited at three different temperatures (15 °C, 30 °C, 45 °C) was examined. Cr is partitioned in the grain boundaries and as a solute in the Cu matrix. The formation of Cr-oxide at the grain boundaries enhanced the corrosion resistance of the coatings, whereas the presence of Cr as solute significantly altered the matrix micro-texture. The 15 °C deposited coating exhibited the lowest corrosion rate due to higher Cr solute, smaller grain size, (111) surface texture, and a higher fraction of coincidence site lattices. The 45 °C deposited coating exhibited the highest corrosion rate due to lower Cr solute, higher energy (110) surface texture, and higher fraction of high energy grain boundaries. © 2024 Elsevier Inc.

Item Type:	Journal Article
Publication:	Materials Characterization
Publisher:	Elsevier Inc.
Additional Information:	The copyright for this article belongs to the Elsevier.
Keywords:	Chromium compounds; Copper compounds; Copper corrosion; Corrosion rate; Corrosion resistance; Corrosion resistant coatings; Corrosive effects; Electrodeposition; Electrodes; Textures, Copper coatings; Corrosion behaviour; Cr coatings; Deposited coatings; Grain boundary engineering; Grain-boundaries; matrix; Micro-texture; Small grain size; Surface textures, Grain boundaries
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	23 Apr 2024 09:59
Last Modified:	23 Apr 2024 09:59
URI:	https://eprints.iisc.ac.in/id/eprint/84623

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