| (Fe Cr)_(83)B_(17)非晶合金结构及其晶化相变的研究 |
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| 引用本文： | 韦钦,蒋安生,杨兵初.(Fe Cr)_(83)B_(17)非晶合金结构及其晶化相变的研究[J].中南大学学报(自然科学版),1990(6). |
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| 作者姓名： | 韦钦 蒋安生 杨兵初 |
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| 作者单位： | 中南矿冶学院应用物理系，中南矿冶学院应用物理系，中南矿冶学院应用物理系 |
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| 摘 要： | 本文用DTA和X射线衍射技术,研究了(FeCr)_(83)B_(17)非晶合金晶化相变全过程。说明该非晶体系的晶化相变过程中,原子键力是晶化相变的驱动力。从“t-x”关系表明,在我们实验条件下(x=5％,15％,25％),高熔点的Cr含量(x)增大所引起晶化峰位向高温方向增大值具有良好的线性关系。实验指出,(Fe_(1-x)Cr_x)_(83)B_(17)非晶合金淬火态的结构单元是Fe_3B局域9原子多面体结构的原子团。
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| 关 键 词： | 晶化 相变 X射线衍射/金属玻璃 |
STUDIES OF STRUCTURE AND CRYSTALLIZATION PHASE TRANSITION IN (Fe Cr)_(83)B_(17) METALLIC GLASS |
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| Wei Qin,Jiang Ansheng,Yang Bingchu.STUDIES OF STRUCTURE AND CRYSTALLIZATION PHASE TRANSITION IN (Fe Cr)_(83)B_(17) METALLIC GLASS[J].Journal of Central South University:Science and Technology,1990(6). |
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| Authors: | Wei Qin Jiang Ansheng Yang Bingchu |
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| Institution: | Wei Qin;Jiang Ansheng;Yang Bingchu Department of Applied Physics |
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| Abstract: | The crystallization process of metallic glass (Fe Cr)_(83)B_(17) was studied by DTA and X-ray diffrac-tion. The experiment proved that the atomic bond force is an important motive force of the crystalliza-tion phase transition during crystallographic process. The "t-x" curve shows that the crystallographicpeak is removed with the increasing of the concentration of Cr atom with high smelting point towardshigh temperature end, and that the relation of "t-x" is linear (x=5%, 15%, 25% ). Experimentsindicated the main structural unit of as-quenched state of (Fe_(1-x)Cr_x)_(83)B_(17) metallic glasa is atomic clustorof local 9 atomic structure. |
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| Keywords: | crystallization phase transition X-ray diffraction/metallic glass |
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