Mechanisms of the formation of magnetic characteristics of a cobalt-based amorphous magnetically soft alloy under heat treatment in air / Skulkina N. A.,Ivanov O. A.,Stepanova E. A.,Shubina L. N.,Kuznetsov P. A.,Mazeeva A. K. // PHYSICS OF METALS AND METALLOGRAPHY. - 2015. - V. 116, l. 12. - P. 1182-1189.

ISSN/EISSN:

0031-918X / 1555-6190

Type:

Article

Abstract:

Physical causes of the formation of magnetic characteristics of cobalt-based alloys with a near to zero saturation magnetostriction under heat treatment in air have been studied using the Co-Fe-Ni-Cr-Si-B amorphous magnetically soft alloy as an example. The results of the study have shown the possibility of using the vapor treatment of surfaces of ribbons made of amorphous magnetically soft alloys to determine the sign of magnetostriction. The dependence of the sign of magnetostriction on the structural state of a ribbon, which is produced by the heat treatment, has been experimentally found. It has been established that physical causes of the formation of magnetic characteristics of the cobalt-based alloys are the same as those for iron-based alloys. Changes in the magnetic characteristics after annealing result from the relaxation of quenchinginduced internal stresses, as well as from the effect of stresses induced by hydrogen and oxygen atoms incorporated into the surface of the ribbon in the course of its interaction with water vapor in air and by the formation of an amorphous-crystalline surface layer.

Author keywords:

magnetic permeability; magnetization; amorphous magnetically soft alloys; heat treatment; rate of cooling; temperature of isothermal holding; distribution of magnetization; interaction with vapor IRON-BASED ALLOYS; RIBBONS; VAPOR; SURFACE

DOI:

10.1134/S0031918X1512011X

Web of Science ID:

ISI:000366332900002

Соавторы в МНС:

Другие поля

Поле	Значение
Month	DEC
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; RIBBONS; VAPOR; SURFACE
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	nadezhda-skulkina@yandex.ru
Funding-Acknowledgement	Ministry of Education and Science of Russian Federation {[}RFMEFI62514X0018]
Funding-Text	This work was supported in part by the Ministry of Education and Science of Russian Federation, unique identifier of applied research and experimental developments RFMEFI62514X0018.
Number-of-Cited-References	9
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	9
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	CY3TN