非晶态Fe-Si-B和Fe-W-Si-B合金系居里温度的研究  

On the Curie Temperature of Amorphous Fe-Si-B and Fe-W-Si-B Alloys

作　　者：王玲玲[1] 胡望宇[1] 吴力军[1] 刘让苏[1] 

机构地区：[1]湖南大学应用物理系,长沙410083

出　　处：《稀有金属材料与工程》1993年第3期19-23,共5页Rare Metal Materials and Engineering

摘　　要：研究了非晶态Fe-Si-B和Fe-W-Si-B合金系的成分、升温速率、退火温度和退火时间对居里温度的影响,讨论了类金属成分与居里温度的关系,得出当类金属原子彼此不为最近邻的上限成分时居里温度出现最大值。随着退火温度的增加,居里温度增加,但当退火温度增加到使高类金属含量的合金出现类金属原子彼此为最近邻的结构组态时,居里温度将逐渐减小。弛豫参量x(T,t)随退火时间t_a变化行为说明结构弛豫的弛豫时间τ或激活能△E呈连续谱。居里温度随升温速率的增加连续降低,高速升温时趋于饱和。We have studied the influence of the alloy composition, heating rate, heattreatment temperature and time on the curie temperature of amorphous Fe-Si-B and Fe-W-Si-B alloys, and discussed the relationship between the curie temperature and the metalloid content. We can concluded that the curie temperatures of these alloys reached the maxmium value at the maximum metalloid content when the, metalloid atoms were separated each other bythe metallic atoms which is similar to that of K.Narita et al.The curie temperature increases with the increasing of the heat-treatment temperature, and decreases when the structure phase of the contacted mettalloid atoms is appeared in the alloy with high metalloid content. The relationship between the structure relaxation parameter x(T,t) and heat-treatment temperature t_a implys that the relaxation time τ or activation energy △E changes continuously.The curie temperature decreases with the increasing of heating rate and tends a saturation value at high heating rate.

关 键 词：居里温度 热处理 金属玻璃 

分 类 号：TG139.8[一般工业技术—材料科学与工程]