摘要
将Co66Fe4Mo2Si16B12非品合金在460℃等温退火30～120min。合金在460℃等温退火过程中，相对起始磁导率μi随退火时间的延长先增大，在t≈45min时达到最大值，然后随着退火时间的延长快速下降。电子衍射花样的结果表明，合金此时仍保持非品态结构．同时发现，合金的饱和磁致伸缩系数λs随退火时间的延长由负值逐渐变为正值，当t＝45min时，λs≈0，由此可知，合金在等温退火过程中相对起始磁导率的峰值与零磁致伸缩系数相对应。
Change in magnetic properties and structure of Co66Fe4Mo2Si16B12 amorphousalloy during isothermal annealing process at 460℃ for 30 - 120 minutes have beeninvestigated. Initial Permeability μi of the alloys increased with annealing time, and came upto maximum at about 45min. The electron diffraction pattern indicated that the alloy withthe highest μi was in the amorphous state. Meanwhile, it was found that magnetostriction λs,changed from negative va1ue to positive value and run through zero at 45 minutes. There-fore, the maximum of initial permeability was main1y due to zero λs
出处
《金属功能材料》
CAS
1997年第3期119-121,共3页
Metallic Functional Materials
基金
国家自然科学基金
中国科学院金属所快速凝固非平衡合金国家重点实验室资助
中国科学院物理所磁学国家开放实验室资助
关键词
磁性
结构
非晶态合金
等温退火
Co_(66)Fe_4Mo_2Si_(16)B_(12) amorphous alloy, magnetic property, structure
