Journal
MATERIALS CHARACTERIZATION
Volume 181, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2021.111489
Keywords
Mg-Y-Ni alloys; LPSO morphology; Galvanic corrosion; Fracturing tools
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Rod-shaped LPSO was obtained by heat treatment in this study, and its effect on the degradation properties of Mg-7.2Y-2.8Ni alloys was investigated. The results showed that the formation of rod-shaped LPSO increased both the degradation rate and elongation of the alloys.
In this study, rod-shaped LPSO was obtained by heat treatment, and the effect of LPSO morphology on the degradation properties of Mg-7.2Y-2.8Ni alloys was investigated. Mg-7.2Y-2.8Ni alloys mainly consisted of alpha-Mg and LPSO, and the distribution of LPSO was changed from continuous network to disordered rod-shaped after heat treatment. The results showed that the formation of rod-shaped LPSO not only increased the average degradation rate by 27% but also increased the elongation. The tensile strength and elongation of the annealed alloys reached 280 MPa and 21.8% respectively.
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