Effect of Sn and Cu on Corrosion Resistance of LaMgAlMnCoNi Type Alloys

Abstract:

This paper reports the results of investigation carried out to evaluate the corrosion resistance of tin and copper in as-cast alloys represented by two sequential series, first: La_0.7Mg_0.3Al_0.3Mn_0.4Co_0.5-xSn_xNi_3.8 (x = 0.0, 0.1, 0.2, 0.3 and 0.5) and second: La_0.7Mg_0.3Al_0.3Mn_0.4Sn_0.5-yCu_yNi_3.8 (y = 0.0, 0.1, 0.2, 0.3 and 0.5). Electrochemical methods, specifically, polarization curves have been employed in this study. Copper substitution yielded good overall performance of the alloys.

• Periodical: Materials Science Forum (Volume 899)
• Pages: 353-357
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.899.353
• Online since: July 2017
• Authors: Julio César Serafim Casini*, Margarida Juri Saeki, Zai Ping Guo, Hua Kun Liu, R.N. Faria, H. Takiishi
• Keywords: Corrosion Resistance, LaNi₅-Type Alloys, Ni-MH Battery

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