| Al—La—Y—Ni非晶合金的晶化行为及其对力学性能的影响 |
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| 引用本文： | 刘超三,张永昌,师昌绪. Al—La—Y—Ni非晶合金的晶化行为及其对力学性能的影响[J]. 金属学报, 1993, 29(11): 79-84 |
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| 作者姓名： | 刘超三 张永昌 师昌绪 |
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| 作者单位： | 中国科学院金属研究所，中国科学院金属研究所，中国科学院金属研究所 沈阳110015，研究员，沈阳110015，沈阳110015 |
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| 摘 要： | 利用DSC热分析、X射线衍射及透射电镜对真空单辊旋淬法制备的四种新型Al-La—Y—Ni四元非晶合金的晶化行为及其对力学性能的影响进行了研究.结果表明:合金成分不同,其晶化行为也不同;随着合金中稀土含量的增加,其初始晶化温度(T_(xt))有提高的趋势高于T_(xt)合金的强度和韧性就急骤下降对Al_(88)La(3.5)Y_(3.5)Ni_5合金的晶化行为的研究表明,它是以初晶型结晶方式进行转变的。
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| 关 键 词： | Al-La—Y—Ni 四元非晶合金 晶化行为 力学性能 |
| 收稿时间： | 1993-11-18 |
| 修稿时间： | 1993-11-18 |
CRYSTALLIZATION BEHAVIOUR OF Al-La-Y-Ni AMORPHOUS ALLOYS AND ITS EFFECT ON MECHANICAL PROPERTIES |
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| LIU Chaosan,ZHANG Yongchang,SHI Changxu Institute of Metal Research,Academia Sinica. Shenyang. CRYSTALLIZATION BEHAVIOUR OF Al-La-Y-Ni AMORPHOUS ALLOYS AND ITS EFFECT ON MECHANICAL PROPERTIES[J]. Acta Metallurgica Sinica, 1993, 29(11): 79-84 |
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| Authors: | LIU Chaosan ZHANG Yongchang SHI Changxu Institute of Metal Research Academia Sinica. Shenyang |
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| Abstract: | The crystallization behaviour of Al-La-Y-Ni quarternary amorphous alloys,prepared by single-roller melt spinning technique under vaccum, was studied by DSC thermalanalysis, X-ray diffraction and TEM. The crystallization behaviour was found to changewith alloy composition. Initial temperature of crystallization (T_(x1) increase with increasing ofREcontents. At the temperature higher than T_(x1), the tensile strength and ductility of alloyslost rapidly. Crystallization behaviour of Al_(88)La_(3.5)Y_(3.5)Ni_(3.5) alloy shows it is transformed by |
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| Keywords: | crystallization behaviour Al-La-Y-Ni quarternary amorphous alloy mechanical properties |
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