| 大厚度Ni_(75)B_(17)Si_8非晶合金的制备 |
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| 引用本文： | 邢力谦,陈熙琛,杨根仓,周尧和.大厚度Ni_(75)B_(17)Si_8非晶合金的制备[J].航空学报,1992,13(5):283-287. |
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| 作者姓名： | 邢力谦 陈熙琛 杨根仓 周尧和 |
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| 作者单位： | 中国科学院物理研究所502组，中国科学院物理研究所502组，西北工业大学403教研室，西北工业大学403教研室 北京 100080，北京 100080，西安 710072，西安 710072 |
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| 摘 要： | 研究了净化Ni_(75)B_(17)Si_(8)合金液的方法以及净化对非晶形成能力的影响,通过净化工艺消除合金液内的异质质点可提高合金液的非晶形成能力;釆用净化和急冷相结合的工艺制备出了20×10×0.5(mm~3)的Ni-(75)B_(17)Si_(8)非晶合金试样。
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| 关 键 词： | 合金净化 非晶合金 非晶形成能力 |
FORMATION OF BULK Ni_(75)B_(17)Si_8 METALLIC GLASS |
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| Xing Li-qian,Chen Xi-shen.FORMATION OF BULK Ni_(75)B_(17)Si_8 METALLIC GLASS[J].Acta Aeronautica et Astronautica Sinica,1992,13(5):283-287. |
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| Authors: | Xing Li-qian Chen Xi-shen |
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| Institution: | 1. Group 508, Institute of Physics Academia Sinica, Beijing, 100080;2. Faculty 403 of Northwestern Polytechnical University, Xi' an, 710072 |
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| Abstract: | Ni.sB17Si8 alloy melt is undercooled by more then 400 K at a cooling rate of 10-20K/s by means of cyclically superheating within a suitable slag and subsequently cyclically superheating at levitation state and under vacuum. The purified melt is quenched into copper slots to form metallic glass sheets. It is found that purification increased the critical thickness of the sheets at which metallic glass could be formed. Ni75B17Si8 metallic glass sheets of a thickness of 0.5 mm are formed by quenching the purified melt which can be undercooled by more than 400 K at a cooling rate 10 - 20 K/s. |
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| Keywords: | purification of liquid alloy metallic glass glass forming ability |
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