(FeCr)₈₃B₁₇非晶合金结构及其晶化相变的研究

来源期刊：中南大学学报(自然科学版)1990年第6期

论文作者：韦钦 蒋安生 杨兵初

文章页码：667 - 672

关键词：晶化； 相变； X射线衍射/金属玻璃

Key words：crystallization； phase transition； X-ray diffraction/metallic glass

摘    要：本文用DTA和X射线衍射技术,研究了（FeCr）₈₃B₁₇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-xCr_x)₈₃B₁₇非晶合金淬火态的结构单元是Fe₃B局域9原子多面体结构的原子团。

Abstract: The crystallization process of metallic glass （Fe Cr）₈₃B₁₇ 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-xCr_x)₈₃B₁₇ metallic glasa is atomic clustorof local 9 atomic structure.