【摘要】 <正> 本文用Mossbauer技术结合DTA和电阻分析,对两种非晶态合金（Ⅰ）Fe_77.8Si_7.5B_14.7和（Ⅱ）Fe_78.5Si_8.9B_12.6的结构弛豫进行了研究。Ⅰ和Ⅱ两种非晶态合金的DTA曲线如图1,晶化开始温度分别为530和500℃,晶化前均出现较长的放热峰,预示其结构弛豫过程中可能发生某种结构变化。更多还原

【Abstract】 The structural relaxation of the amorphous alloys Fe_77.8Si_7.5B_14.7 and Fe_78.5Si_8.9B_12.6 was studied using Mossbauer technique together with DTA and resistivity. It is likely to have two stages, low and high temperature, of structural relaxation. The low temperature stage is mainly showed as relieving distorted stress and locally ordering atomic arrangement; and the high temperature stage as the long-range diffusion and segregation of metalloid atoms as well as nuclear growth.更多还原