Abstract
The microstructure and mechanical properties of Mg- xCe-0.5Zn ( x=0.5, 1.5, 2.5, molar fraction, %) alloys were examined using a nano-indentation technique. The alloys were fabricated using a vacuum induction melting method under an argon atmosphere. The microstructures of Mg- xCe-0.5Zn alloys mainly consist of α-Mg and eutectic Mg 12Ce phase. The volume fraction and size of the eutectic Mg 12Ce phase increase with increasing Ce contents. Nano-indentation test results show that the indentation hardness and elastic modulus of the eutectic Mg 12Ce phase are higher than those of the α-Mg matrix. In addition, the mean indentation hardness and elastic modulus of the Mg- xCe-0.5Zn alloys increase with the Ce addition amount increasing.
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