Abstract
In the present study, microstructural modification of AZ91 Mg alloy was done by friction stir processing (FSP) and the effect of grain refinement on wear properties was investigated. FSP tool with square-tapered pin profile was used for processing. Microstructure analysis, hardness, and sliding wear tests were conducted on FSPed AZ91 Mg alloy. Microstructural observations revealed that the grain size and secondary phase (Mg17Al12) were observed as decreased after FSP. Increased hardness was observed in FSPed sample compared with unprocessed AZ91 Mg alloy. Wear tests showed a slight improvement in the wear resistance of FSPed sample compared with unprocessed AZ91 Mg alloy. Worn surface morphology showed the formation of deep grooves and oxide patches on the wear tracks of the samples. Abrasive and oxidative were observed to be the active wear mechanisms in both samples during the wear tests.
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Patle, H., Uday Venkat Kiran, K., Ratna Sunil, B., Dumpala, R. (2021). Effect of Friction Stir Processing on the Sliding Wear Characteristics of AZ91 Mg Alloy. In: Kalamkar, V., Monkova, K. (eds) Advances in Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-3639-7_79
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DOI: https://doi.org/10.1007/978-981-15-3639-7_79
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