Abstract
Three as-cast and as-extruded Mg-5Zn-xY-0.6Zr (x=5 wt%, 8 wt%, 11 wt%) alloys were prepared, and the effects of Y content on the microstructures and mechanical properties of the alloys were investigated. The results show that the investigated Mg-Zn-Y-Zr alloys mainly consist of α-Mg, X-Mg12YZn and minor amount of W-Mg3Y2Zn3 phases. The volume fraction of X-Mg12YZn phase increases and that of W-Mg3Y2Zn3 phase decreases with the rising of Y content in the alloys. The as-extruded Mg-5Zn-11Y-0.6Zr alloy owns the optimal ultimate tensile strength and yield strength of 429 and 351 MPa, respectively. Mg-5Zn-5Y-0.6Zr alloy owns the maximum elongation of 13.6%.
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Funded by the National Key Research and Development Program of China (No. 2016YFB0301101), the Liaoning Provincial Natural Science Foundation of China (No. 2014028027) and the National Basic Research Program of China (No. 2013CB632203)
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Yin, S., Zhang, Z., Liu, X. et al. Effects of Y Content on the Microstructures and Mechanical Properties of Mg-5Zn-xY-0.6Zr Alloys. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 34, 138–144 (2019). https://doi.org/10.1007/s11595-019-2027-9
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DOI: https://doi.org/10.1007/s11595-019-2027-9