Abstract
A marked effect of load on measured microhardness is reported for melt-spun Mg-4.7 wt% Al-0.8 wt% Zn alloy for both Vickers and Knoop tests, with and without the presence of a lubricant. Analysis of the results according to the approach used recently for pure Fe by Li et al. and for some intermetallics by Bystrzycki and Varin gives an intrinsic hardness H 0 of 42 ± 5 and 36 ± 2 kg/mm 2 for this material from Vickers and Knoop tests respectively.
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