Effect of Er on properties of Zr-based bulk metallic glasses |
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| Authors: | Chun-Yan Li Jin-Feng Yin Juan-Qiang Ding Fu-Ping Zhu Yan-Chun Zhao Sheng-Zhong Kou |
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| Affiliation: | 1. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, People’s Republic of China;2. State Key Laboratory of Advanced Processing and Reuse of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, People’s Republic of China;3. Wenzhou Engineering Institute of Pump &4. Valve, Lanzhou University of Technology, Wenzhou, People’s Republic of China |
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| Abstract: | (Zr0.6336Cu0.1452Ni0.1012Al0.12)100-xErx(x?=?0～6) bulk metallic glasses were fabricated by copper mould suction casting method, and the effect of Er on properties was studied. The compressive plastic strain (εp) and compressive strength (σmax) at room temperature increases first and then decreases with the increase of Er content. The compressive plastic strain (εp) of the specimen is 35.1% when x?=?2.6, which is about eight times than that of the specimen with x?=?0. The compressive strength (σmax) is 2513?MPa, which is much higher than that of the specimen with x?=?0. It indicates that Zr-based bulk metallic glasses could be strengthened and toughened by adding Er. The thermal stability decreases gradually and the glass-forming ability increases first and then decreases with the increase of Er content. |
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| Keywords: | Bulk metallic glasses plastic strain compressive strength thermal stability glass-forming ability |
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