Nanocrystallization and magnetic properties of Fe56Co7Ni7Zr2M8B20 (M = Nb or Ta) glassy alloys

被引：8

作者：

Koshiba, H ^{[1
]}

Inoue, A

Makino, A

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 98077, Japan

[2] Alps Elect Co Ltd, Cent Res Lab, Nagaoka, Niigata 940, Japan

来源：

NANOSTRUCTURED MATERIALS | 1997年 / 8卷 / 08期

关键词：

D O I：

10.1016/S0965-9773(98)00037-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Glassy alloys with a wide supercooled liquid region before crystallization were found in melt-spun Fe56Co7Ni7Zr2M8B20 (M = Nb or Ta) alloys. The temperature interval of the supercooled liquid region defined by the difference between glass transition temperature (Tg) and crystallization temperature (T-x), Delta T-x(=T-x-T-g) is about 60 K for these alloys. The crystallization occurs through distinct two stages. The crystallization behavior seems to reflect the existence of Fe-2(M,Zr) phase resulting from the weaker bonding nature of Fe-M pair as compared with Fe-Zr pair. Good soft magnetic properties are obtained in the annealed state for 300s at 800K below T-g for these alloys. Saturation magnetization (I-s), coercive force (H-c) and effective permeability (mu(e)) at 1 kHz are about 0.8T, 2A/m and 18000, respectively. The above-mentioned glassy alloys,with wide supercooled liquid region and good soft magnetic properties heave a strong possibility of producing soft magnetic bulk amorphous alloys. (C) 1998 Acta Metallurgica Inc.

引用

页码：997 / 1005

页数：9

共 15 条

[1]

DEBOER FR, 1988, COHESION METALS

[2] Soft magnetic properties of bulk Fe-based amorphous alloys prepared by copper mold casting [J].

Inoue, A ;

Takeuchi, A ;

Zhang, T ;

Murakami, A ;

Makino, A .

IEEE TRANSACTIONS ON MAGNETICS, 1996, 32 (05) :4866-4871

[3] AN AMORPHOUS LA-55-AL-25-NI-20 ALLOY PREPARED BY WATER QUENCHING [J].

INOUE, A ;

KITA, K ;

ZHANG, T ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1989, 30 (09) :722-725

[4] MG-CU-Y AMORPHOUS-ALLOYS WITH HIGH MECHANICAL STRENGTHS PRODUCED BY A METALLIC MOLD CASTING METHOD [J].

INOUE, A ;

KATO, A ;

ZHANG, T ;

KIM, SG ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1991, 32 (07) :609-616

[5] Thermal and magnetic properties of bulk Fe-based glassy alloys prepared by copper mold casting [J].

Inoue, A ;

Shinohara, Y ;

Gook, JS .

MATERIALS TRANSACTIONS JIM, 1995, 36 (12) :1427-1433

[6] BULKY LA-AL-TM (TM = TRANSITION-METAL) AMORPHOUS-ALLOYS WITH HIGH-TENSILE STRENGTH PRODUCED BY A HIGH-PRESSURE DIE-CASTING METHOD [J].

INOUE, A ;

NAKAMURA, T ;

SUGITA, T ;

ZHANG, T ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1993, 34 (04) :351-358

[7] PRODUCTION OF AMORPHOUS LA-AL-NI AND ZR-AL-NI ALLOY TUBES BY A METALLIC-MOLD CASTING METHOD [J].

INOUE, A ;

SAITO, T ;

YAMAMOTO, H ;

MASUMOTO, T .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1993, 12 (12) :946-948

[8] PREPARATION OF 16 MM DIAMETER ROD OF AMORPHOUS ZR65AL7.5NI10CU17.5 ALLOY [J].

INOUE, A ;

ZHANG, T ;

NISHIYAMA, N ;

OHBA, K ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1993, 34 (12) :1234-1237

[9] MG-CU-Y BULK AMORPHOUS-ALLOYS WITH HIGH-TENSILE STRENGTH PRODUCED BY A HIGH-PRESSURE DIE-CASTING METHOD [J].

INOUE, A ;

NAKAMURA, T ;

NISHIYAMA, N ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1992, 33 (10) :937-945

[10] Effect of additional elements on glass transition behavior and glass formation tendency of Zr-Al-Cu-Ni alloys [J].

Inoue, A ;

Shibata, T ;

Zhang, T .

MATERIALS TRANSACTIONS JIM, 1995, 36 (12) :1420-1426

← 1 2 →