Microstructure, tribology, and corrosion characteristics of hot-rolled AZ31 magnesium alloy
Lokesh Kumar, R.
Yashwanth Kumar, B. G.
Vaira Vignesh, R.
Kaasi Viswanath, J.
Vignesh, R. Vaira
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Lokesh Kumar, R. et al. (2023). Microstructure, Tribology, and Corrosion Characteristics of Hot-Rolled AZ31 Magnesium Alloy. In: Vignesh, R.V., Padmanaban, R., Govindaraju, M. (eds) Advances in Processing of Lightweight Metal Alloys and Composites. Materials Horizons: From Nature to Nanomaterials. Springer, Singapore. https://doi.org/10.1007/978-981-19-7146-4_17
Magnesium alloy AZ31 is one of the suitable lightweight alloys with good strength-to-weight ratio for automotive, aerospace, and aircraft applications. The as-cast AZ31 has a lesser hardness, corrosion, and wear resistance. However, work hardening techniques refine the microstructure of AZ31 alloy with a uniform dispersion of ? phase particles and hence improve the desirable properties. In this study, the as-cast AZ31 alloy is hot-rolled at different temperatures (150, 300, and 400 °C). The influence of rolling temperature on the microstructural evolution, microhardness, wear rate, and corrosion rate of specimens is analyzed. The instrumental characterization (FE-SEM, HR-TEM, and SE) is performed to deduce the kinetics of microstructural evolution, wear mechanism, and corrosion mechanism. The optimum hot rolling temperature for AZ31 alloy is inferred from the results.
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