| 一种新型Nd基块体非晶合金 |
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| 引用本文： | 任英磊,左景辉,邱克强,张海峰,胡壮麒.一种新型Nd基块体非晶合金[J].金属学报,2004,40(3):301-304. |
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| 作者姓名： | 任英磊 左景辉 邱克强 张海峰 胡壮麒 |
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| 作者单位： | 1. 沈阳工业大学材料科学与工程学院,沈阳,110023
2. 中国科学院金属研究所沈阳材料科学国家,联合,实验室,沈阳,110016 |
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| 基金项目： | 辽宁省教育厅资助项目202063289 |
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| 摘 要： | 在铜模铸造条件下制备了直径2．5mm的Nd61Fe30Zn9块状非晶合金．在普通DSC条件下，没有观察到这种合金的玻璃转变温度，晶化温度为730K，比Nd60Fe30Al10非晶合金的晶化温度低约70K，因此该合金的热稳定性较低．熔化行为分析表明，合金Nd61Fe30Zn9的熔化过程为单峰吸热过程，且熔化区间仅为54K，说明该合金的成分接近合金的共晶成分，但母合金的自然凝固组织不具有共晶凝固特点，表现为粗大的枝晶状组织．讨论了成分和组织对合金非晶形成能力的影响．
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| 关 键 词： | Nd-Fe-Zn块体非晶合金 形成能力 熔化行为 |
| 文章编号： | 0412-1961(2004)03-0301-04 |
| 收稿时间： | 2003-06-05 |
| 修稿时间： | 2003-08-18 |
A New Nd--Based Bulk Metallic Glass |
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| REN Yinglei,ZUO Jinghui,QIU Keqiang,ZHANG Haifeng,HU Zhuangqi.A New Nd--Based Bulk Metallic Glass[J].Acta Metallurgica Sinica,2004,40(3):301-304. |
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| Authors: | REN Yinglei ZUO Jinghui QIU Keqiang ZHANG Haifeng HU Zhuangqi |
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| Affiliation: | Faculty of Materials Science and Engineering, Shenyang University of Technology |
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| Abstract: | A new Nd61Fe30Zn9 bulk metallic glass with a diameter of 2.5 mm was obtained using copper mold casting. No glass transition temperature or supercooled liquid region was observed by using conventional DSC-7 facility. The crystallization temperature for the bulk sample is 730 K, which is about 70 K lower than that of Nd60Fe30Al10 bulk metallic glass. The melting characteristics of Nd61Fe30Zn9 alloy show that its compositional is at a eutectic point, but the alloys exhibit non-eutectic microstructure due to high tendency of undercooled ability. |
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| Keywords: | Nd-Fe-Zn bulk metallic glass glass-forming ability melting behavior |
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