| 微量Al添加对铜基大块非晶合金性能的影响 |
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| 引用本文： | 杨英俊,邢大伟,孙剑飞,单树森,沈军. 微量Al添加对铜基大块非晶合金性能的影响[J]. 材料科学与工艺, 2008, 16(6): 794-797 |
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| 作者姓名： | 杨英俊 邢大伟 孙剑飞 单树森 沈军 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院;空军航空大学航空机械工程系; |
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| 基金项目： | 教育部新世纪优秀人才支持计划资助项目 |
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| 摘 要： | 为了进一步提高铜基大块非晶合金的玻璃形成能力及力学性能,采用添加微量Al元素的方法对块体非晶合金Cu52.5Ti30Zr11.5Ni6进行了成分优化.热分析与X射线衍射结果显示,随着微量Al的添加,液相线温度从非晶合金Cu52.5Ti30Zr11.5Ni6的1150 K逐步降低到Cu50.5Ti30Zr11.5Ni6Al2的1134 K,临界直径相应的从5 mm提高到6 mm.大块非晶Cu50.5Ti30Zr11.5Ni6Al2的压缩断裂强度达到2286 MPa,比经典的铜基非晶合金Cu47Ti34Zr11Ni8提高约100 MPa,表明微量Al的添加在有效提高玻璃形成能力的同时,强度也略有提高.
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| 关 键 词： | 大块非晶合金 玻璃形成能力 压缩断裂强度 |
Effects of minor Al addition on the glass-forming ability and mechanical properties of Cu-based bulk amorphous alloy |
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| YANG Ying-jun,XING Da-wei,SUN Jian-fei,SHAN Shu-sen,SHEN Jun. Effects of minor Al addition on the glass-forming ability and mechanical properties of Cu-based bulk amorphous alloy[J]. Materials Science and Technology, 2008, 16(6): 794-797 |
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| Authors: | YANG Ying-jun XING Da-wei SUN Jian-fei SHAN Shu-sen SHEN Jun |
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| Affiliation: | 1.School of Materials Science and Engineering;Harbin Institute of Technology;Harbin 150001;China;2.Aeronautical Mechanical Engineering;Aviation University of Air Force;Changchun 130022;China |
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| Abstract: | The effects of minor Al substitution for Cu on the glass-forming ability and mechanical properties have been studied for Cu52.5-xTi30Zr11.5Ni6Alx(x=0,1,1.5,2) alloys.Thermal analysis and X-Ray examination show that minor Al addition decreases the liquidus temperature from 1150 K at x=0 to 1134 K at x=2,and increases the critical size of amorphous samples from 5 mm to 6 mm in diameter correspondingly.The bulk amorphous Cu50.5Ti30Zr11.5Ni6Al2 exhibits high compressive fracture strength of 2286 MPa,which is ab... |
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| Keywords: | bulk amorphous alloy glass-forming ability compressive fracture strength |
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