Glass-forming ability enhanced by proper additions of oxygen in a Fe-based bulk metallic glass

被引：55
作者：
Li, H. X. [1 ,2 ]
Gao, J. E. [1 ]
Jiao, Z. B. [1 ]
Wu, Y. [1 ]
Lu, Z. P. [1 ]
机构：
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
[2] Jiangsu Polytech Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 16期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
PHASE-FORMATION; RAW-MATERIALS; HOT METAL; CRYSTALLIZATION; IMPURITY; ALLOYS;
D O I：
10.1063/1.3248186
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Effects of oxygen on glass formation in the Fe73Mo3.0C7.0Si3.3B5.0P8.7 bulk metallic glass were studied in detail. Surprisingly, it was found that a critical level of oxygen is effective in enhancing the glass-forming ability of the current Fe-based bulk metallic glass due to the facts that (i) oxygen can increase the crystallization resistance via suppressing the precipitation of the competitive primary phase and (ii) oxygen can stabilize the glass-forming liquid as manifested by the decrease in the liquidus temperature. However, excess oxygen additions will destabilize the liquid and induce the formation of more stable oxygen-containing crystalline phase, thus deteriorating the glass-forming ability. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3248186]
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页数：3
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