Tracing of the time factor on strain and structural relaxation of terbium-iron amorphous alloys

金属非晶合金必然伴随着结构松弛现象。虽然热处理引起的弛豫物理性质变化是基本现象之一，但跟踪测量的难度忽略了许多重要现象。特别是，磁光记录的稳定性与Tb-Fe系非晶合金的加工过程密切相关，在长时间内双面的应变松弛和结构松弛是非常必要的。它把主要目标放在应变和结构松弛之间。在应变变化过程中，相对地表现为时间因子体积较大的短时间内的变化。另一方面，在结构松弛中，时间因子相对较小，表现为长时间的变化。为了提高跟踪的效率，本研究采用了物理实验与计算机实验相结合的方法。在目前的工作中，通过这些方法，本文的目的是获得特别是物理和热原子扩散性能稳定性的讨论。很明显，应变结构松弛过程中的活化能比常规自扩散过程中的活化能小两个数量级。此外，相同的活化能几乎比表面扩散行为的活化能小一个数量级。认为对这部分扩散系数的详细考察有待进一步研究。

Certainly metallic amorphous alloy is accompanied by structural relaxation phenomenon. Although the physical properties change of the relaxation by heat treatment is one of the fundamentals, the difficulty of the tracking measurement is missing the many important phenomena. Especially, Magneto-Optical Recording stability for Tb-Fe system amorphous alloy is closely related to the process, both sides of strain relaxation and structural relaxation in the long time is strongly necessity.The following were examined : it puts the principal objective between strain and structural relaxation. In strain change process it comparatively shows the change in the short time with large volume of time factor. On the other hand, in structural relaxation which comparatively shows the change in long time with small volume of time factor.For efficiency improvement of the tracing, physics experiment was made to fuse with computer experiment on this study. In the present work, by these methods, the aim of this article is to obtain of discussion for especially stability of physical and thermal atomic diffusion property.It is obviously that the activation energy in structural relaxation process of strain is about two orders of magnitude smaller than that in conventional self-diffusion behavior. Furthermore, the same activation energy is almost one order of magnitude smaller than that in surface diffusion behavior. It is considered that the detailed examination of this part of the diffusivity should be further problem.