Abstract
This study investigated the effect of aluminum (Al%) amount found in AZ series magnesium alloys on hardness, wear resistance, and machinability. The amount of zinc (1 % Zn) used in the experiment was kept fixed, and changes on hardness, wear resistance, and machinability were analyzed depending on the increase in the amount of Al%. To this end, AZ series magnesium alloys (AZ01, AZ21, AZ41, AZ61 and AZ91) (that includes aluminum at rates ranging from 0 up to 9 %) were used in the study. It was observed in AZ series magnesium alloys that intermetallic phase in microstructure (β-Mg₁₇Al₁₂) affected hardness, wear resistance, and machinability of the alloy depending on the increase in Al amount. It was established that Mg₁₇Al₁₂ intermetallic phase in the microstructure of AZ91 alloy increased the machinability of the alloy.

Key words
machinability, cutting force, wear resistance, AZ series magnesium alloys, flank built-up

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