Interaction of the surface of ribbons of amorphous soft-magnetic alloys with vapor during isothermal holding upon heat treatment / Skulkina N. A.,Ivanov O. A.,Pavlova I. O.,Minina O. A. // PHYSICS OF METALS AND METALLOGRAPHY. - 2015. - V. 116, l. 11. - P. 1087-1095.

ISSN/EISSN:

0031-918X / 1555-6190

Type:

Article

Abstract:

The effect of in-air heat treatment in combination with water vapor on the magnetization distribution and magnetic properties has been investigated based on the example of ribbons of amorphous soft-magnetic alloys Fe77Ni1Si9B13 and Fe81B13Si4C2 with positive magnetostriction. The results of the investigation showed the temperature lag of the dependence of the maximum magnetic permeability and of relative volume of domains with orthogonal magnetization on the isothermal-holding temperature. This effect can be associated with the inhibition of processes of surface crystallization by hydrogen and oxygen atoms introduced into the ribbon surface. Distinctive features of the heat treatment with and without vapor on the magnetization distribution in the ribbon plane that are explained within the theory of directed ordering with allowance for the processes of crystallization at the cooling stage have been found. This demonstrates the importance of the contribution of diffusion processes at this stage of treatment to the formation of the level of magnetic properties. It has been shown that the interaction of the ribbon surface with water vapor is not physical adsorption. Interaction with atmospheric gases is carried out by dispersion forces and exerts an influence on the magnetization distribution in the ribbon plane and maximum magnetic permeability.

Author keywords:

magnetic permeability; magnetization; amorphous soft-magnetic alloys; heat treatment; cooling rate; isothermal-holding temperature; interactions with vapor IRON-BASED ALLOYS

DOI:

10.1134/S0031918X15090161

Web of Science ID:

ISI:000365032700004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	NOV
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1555-6190
Keywords-Plus	IRON-BASED ALLOYS
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	nadezhda-skulkina@yandex.ru
Funding-Acknowledgement	Ministry of Education of the Russian Federation {[}2582, 032]
Funding-Text	This work was supported in part by the Ministry of Education of the Russian Federation, projects no. 2582 and 032.
Number-of-Cited-References	13
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	9
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	CW5JW