Ultra-high strength Mg-Li based bulk metallic glasses: Preparation and performance research |
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| Authors: | Guangbo LiuPeng Gao Zhu XueZhongqiu Tong Milin Zhang |
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| Affiliation: | Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin, Heilongjiang 150001, PR China |
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| Abstract: | In this paper, new Mg-Li based bulk metallic glasses (BMGs) are prepared by conventional copper mold injection casting method. The alloys exhibit excellent mechanical properties, such as ultra-high compressive fracture strength (maximal 729 MPa), high Vickers hardness (>2 GPa) and low elastic modulus (∼35 GPa). Compared with the corresponding crystal alloys, the density of the amorphous alloy samples is reduced by about 1.5% due to their free volume. Thus, it is believed that this new BMGs with these outstanding properties will broaden Mg-Li based alloys’ application fields. |
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| Keywords: | Mg-Li based bulk metallic glasses Glass forming ability Thermal stability Mechanical properties |
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