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Magnetic Properties of Rapidly Quenched Soft Magnetic Co-Based Alloy Subjected to Heat Treatment in a Sulfur Atmosphere
Physics of Metals and Metallography ( IF 1.2 ) Pub Date : 2021-04-13 , DOI: 10.1134/s0031918x21010038
A. A. Feshchenko , N. A. Kulesh , E. A. Mikhalitsina , D. S. Neznakhin , N. V. Selezneva , E. A. Stepanova

Abstract

The effect of heat treatments (HTs) in a sulfur atmosphere of a rapidly quenched soft magnetic 71KNSR (Co72Ni12.2Fe5.7Si6.5B3.6) alloy on its magnetic properties is studied in this work. The alloy under study is subjected to HTs at temperatures above and below its Curie temperature. It is shown that the magnetic properties are improved in both cases. It is likely that the improvement is traceable to the relaxation of internal quenching stresses in the course of heat treatment. X-ray diffraction studies performed after HT in a sulfur atmosphere at 350°С showed up the appearance of cobalt sulfide, which can inducing additional tensile stresses. This results in a decrease in the volume of domains with the magnetization perpendicular to the ribbon plane, which, in turn, explains the more substantial improvement of the magnetic properties of the Co72Ni12.2Fe5.7Si6.5B3.6 ribbon after HT in the sulfur atmosphere at the temperature above the Curie temperature.



中文翻译:

在硫气氛中进行热处理的快速淬火软磁钴基合金的磁性能

摘要

快速淬火软磁71KNSR(Co 72 Ni 12.2 Fe 5.7 Si 6.5 B 3.6)合金在其磁性方面的研究在这项工作中。所研究的合金在高于和低于居里温度的温度下承受高温。结果表明,在两种情况下磁性能均得到改善。这种改善很可能追溯到热处理过程中内部淬火应力的缓和。HT在350ºC的硫气氛中进行HT后进行的X射线衍射研究显示出硫化钴的出现,这可能引起额外的拉伸应力。这导致磁化强度垂直于带状平面时,畴的体积减小,这又解释了Co 72 Ni 12.2 Fe 5.7 Si 6.5磁性能的更大改善。B 3.6碳带在硫气氛中在居里温度以上的温度下进行HT。

更新日期:2021-04-13
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