The effect of heat treatment on the structure and magnetic properties of amorphous ribbons of soft magnetic alloys / Skulkina N.A., Ivanov O.A., Stepanova E.A., Glotova L.S., Tsepelev V.S. // Physics of Metals and Metallography. - 1998. - V. 86, l. 2. - P. 144-148.

ISSN:
0031918X
Type:
Article
Abstract:
Interrelation between magnetic properties and surface crystallization and structural heredity of the melt was studied using amorphous ribbons of Fe81B13Si4C2 soft magnetic alloy as an example. The study showed that obtaining optimum magnetic properties of the alloys by heat treatment required the formation of a surface amorphous-crystalline layer ∼30-50 nm thick. The physical nature of this effect consists in the creation of tensile stresses in the surface layer of the amorphous matrix due to the formation of crystalline grains, which increases the number of magnetic domains with in-plane magnetization and decreases domain wall stability. Heat treatment at 380°C for 10 min and cooling at a rate of 15 K/min enables higher magnetic properties to be obtained for less homogeneous alloys (without overheating treatment of the melt before amorphization) due to the formation of a surface amorphous-crystalline layer of optimum thickness. The inferior magnetic properties of ribbons with higher structural homogeneity (after heat treatment of the melt) are likely to be due to the lower activity of diffusion processes resulting in a decrease in the rate of internal stress relief upon annealing and delay of crystallization. The difference in the time behavior of magnetic properties between the two ribbon samples under study can also be attributed to the peculiarities of crystallization processes that occur at room temperature. The time stability of magnetic properties of the ribbon can be improved significantly by magnetic annealing.
Author keywords:
Index keywords:
нет данных
DOI:
нет данных
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032339280&partnerID=40&md5=68c92f0000841e13c67af9f57dd92e27
Соавторы в МНС:
Другие поля
Поле Значение
Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032339280&partnerID=40&md5=68c92f0000841e13c67af9f57dd92e27
Affiliations Ural State University, pr. Lenina 51, Ekaterinburg, 620083, Russian Federation
References Prokoshin, A.F., Zhelanov, A.N., Kulagin, B.N., Kuritsyn, V.B., Effect of the melt temperature on the structure and magnetic anisotropy of amorphous Fe-B alloys (1981) Amorfnye Pretsizionnye Splavy (Amorphous Precision Alloys), pp. 63-68. , Moscow: Metallurgiya; Luborsky, F.E., Liebermann, H.H., Effect of melt temperature on some properties of Fe80.5B15Si4C0.5 and Fe40Ni40B20 amorphous alloys (1981) Mater. Sci. Eng., 49 (3), pp. 257-261; Manov, V.P., Popel', S.I., Lazutkin, V.N., Electrical resistivity and crystallization of amorphous alloys Fe79B21 quenched from the casting temperatures (1985) Izv. Akad. Nauk SSSR, Met., (6), pp. 171-173; Manov, V.P., Popel', S.I., Buler, P.I., Effect of the melt condition on the structure-sensitive properties of amorphous Fe-B and Pd-Si alloys (1989) Rasplavy, (1), pp. 23-37; Starodubtsev, Yu.N., Son, L.D., Tsepelev, V.S., Effect of the melt superheating temperature on the mechanical and magnetic properties of amorphous ribbons (1992) Rasplavy, (4), pp. 76-79; Shtypulyak, N.I., Yakimov, I.I., Litvintsev, V.V., X-ray diffraction study of the structure of surface layers using parallel glancing incidence (1988) Prib. Tekh. Eksp., (5), pp. 181-184; Ivanova, E.V., Yakimov, I.I., Skulkina, N.A., Control of crystallization of amorphous ribbons using a modified X-ray diffraction method (1992) Shestoe Vserossiiskoe Soveshchanie Vuzov Po Fizike Magnitnykh Materialov (Sixth All-Russia Symp. on the Physics of Magnetic Materials), pp. 64-65. , Abstracts of Papers, Irkutsk; Skulkina, N.A., Ivanov, O.A., Shirokova, E.A., Kataev, V.A., Ivanova, E.V., Tsepelev, V.S., Skvortsov, K.A., Effect of surface crystallization and time-temperature treatment of the melt prior to amorphization on the magnetic properties of amorphous soft magnetic alloys (1995) Rossiiskii Seminar "Strukturnaya Nasledstvennost' v Protsessakh Sverkhbystroi Zakalki Rasplavov" (All-Russia Symp. on Structural Heredity in Processes of Ultrarapid Quenching of Melts), pp. 8-10. , Abstracts of Papers, Izhevsk; Skulkina, N.A., Ivanov, O.A., Stepanova, E.A., Kataev, V.A., Ivanova, E.V., Yakimov, I.I., Psepelev, V.S., Influence of structures of melt and of surface of ribbon on magnetic properties of amorphous soft magnetic alloys (1996) 9th Int. Conf. on Rapidly Quenched and Metastable Materials, p. 340. , Abstracts of Papers, Bratislava; Skulkina, N.A., Gorlanova, M.A., Ivanov, O.A., Effect of insulating coating and magnetic annealing on magnetic properties of an Fe-B-Si-C metallic glass (1995) Phys. Met. Metallogr., 79 (5), pp. 496-502; Skulkina, N.A., Gorlanova, M.A., Ivanov, O.A., Effect of laser irradiation on magnetic properties of amorphous Fe-B-Si-C alloy (1997) Phys. Met. Metallogr, 83 (5), pp. 497-503
Correspondence Address Skulkina, N.A.; Ural State University, pr. Lenina 51, Ekaterinburg, 620083, Russian Federation
Language of Original Document English
Abbreviated Source Title Phys. Met. Metallogr.
Source Scopus