| Crystallization behavior of Ti61.67Zr17.15Ni14.80Cu6.38 glass-forming alloy |
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| 引用本文： | 范金铎,高逸群,黎仕增. Crystallization behavior of Ti61.67Zr17.15Ni14.80Cu6.38 glass-forming alloy[J]. 中国有色金属学会会刊, 2004, 14(1): 156-160 |
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| 作者姓名： | 范金铎 高逸群 黎仕增 |
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| 作者单位： | [1]BeijingGeneralResearchInstituteforNon-ferrousMetals,Beijing100088,China [2]InstituteofPreciousMetals,Kunming650221,China [3]GuangxiInstituteofMechanical＆ElectricalTechnology,Nanning530007,China |
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| 基金项目： | Project(ZSK91 D0 0 79)supportedbytheNon FerrousMetalsIndustryAssociationofChina |
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| 摘 要： | Ti61.57Zr17.15Ni14.80Cu6.38(atom fraction, %) metallic glass has applications in brazing. Using the hammer-and-anvil technique, Ti61.67Zr17.15Ni14.80Cu6.38 metallic glass was prepared. The crystallization behavior for this metallic glass was investigated by differential scanning calorimetry(DSC), X-ray diffractometry (XRD) and transmission electron microscopy(TEM). There are three stages in DSC curves of crystallization. The reduced glass temperature Trg is 0.42. The kinetic parameters of crystallization were calculated by a set of equations of the maximum crystallization rate. The crystalline phase formed in the MSⅠ(Metastable stage D is Zr2Cu, in the MSII is α-Ti and in the MSⅢ is Ti2Ni. This kind of alloy has lower glass forming ability, and the Ti61.67Zr17.15Ni14.80Cu6.38 metallic glass has lower thermal stability.
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| 关 键 词： | 钛合金 非晶合金 晶化 动力学 TEM DSC XRD |
Crystallization behavior of Ti61.67Zr17.15Ni14.80Cu6.38 glass-forming alloy |
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| FAN Jin duo ,GAO Yi qun ,LI Shi zeng. Crystallization behavior of Ti61.67Zr17.15Ni14.80Cu6.38 glass-forming alloy[J]. Transactions of Nonferrous Metals Society of China, 2004, 14(1): 156-160 |
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| Authors: | FAN Jin duo GAO Yi qun LI Shi zeng |
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| Affiliation: | FAN Jin duo 1,GAO Yi qun 2,LI Shi zeng 3 |
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| Abstract: | Ti61.67 Zr17.15 Ni14.80 Cu6.38 (atom fraction,%) metallic glass has applications in brazing. Using the hammer-and-anvil technique, Ti61.67 Zr17.15 Ni14.80 Cu6.38 metallic glass was prepared. The crystallization behavior for this metallic glass was investigated by differential scanning calorimetry (DSC), X-ray diffractometry (XRD) and transmission electron microscopy(TEM). Th ere are three stages in DSC curves of crystallization. The reduced glass temperature Trg is 0.42. The kinetic parameters of crystallization were calculated by a set of equations of the maximum crystallization rate. The crystalline phase formed in the MSI(Metastable stage Ⅰ) is Zr2Cu, in the MSⅡ is α-Ti and in the MSⅢ is Ti2 Ni. This kind of alloy has lower glass forming ability, and the Ti61.67 Zr17. 15 Ni14. 80 Cu6.38 metallic glass has lower thermal stability. |
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| Keywords: | Ti61.67 Zr17. 15 Ni14.80 Cu6.38 metallic glass crystallization behavior glass forming ability brazing |
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