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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。
In this paper, DTA and X-ray diffraction were used to study the whole phase transformation of (FeCr) _ (83) B_ (17) amorphous alloy. Explain the amorphous phase of the crystallization process, the atomic bonding force is the driving force of the crystallization phase transition. From the “tx” relationship, it is shown that the increasing of Cr content (x) at high melting point in the experimental conditions (x = 5%, 15%, 25% Linear relationship. The experimental results show that the quenched structural unit of Fe_ (1-x) Cr_x) _ (83) B_ (17) amorphous alloy is the atomic group of the 9-atom polyhedron structure of Fe_3B.