Fe-B-Si-Nb bulk metallic glasses with high strength above 4000 MPa and distinct plastic elongation

被引：88

作者：

Amiya, K ^{[1
]}

Urata, A

Nishiyama, N

Inoue, A

机构：

[1] R&D Inst Met & Composites Future Ind, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

来源：

MATERIALS TRANSACTIONS | 2004年 / 45卷 / 04期

关键词：

bulk glass alloy; iron base alloy; high glass-forming ability; high-resolution image; local-order region;

D O I：

10.2320/matertrans.45.1214

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The glass-forming ability and mechanical properties of Fe-B-Si-Nb glassy alloys have been investigated. The Fe72B20Si4Nb4 glassy alloy was prepared in a cylindrical form with a diameter of 2 mm. Young's modulus, compressive fracture strength and plastic elongation of the bulk metallic glass were 200 GPa. 4200 MPa and 1.9%, respectively. Many shear bands were observed along the shear plane, which was declined by about 43 degrees to the direction of applied load, and the fracture occurred along the shear plane. The local-ordered regions were recognized in the high-resolution TEM image of the Fe72B20Si4Nb4 bulk metallic glass with a diameter of 2 mm. The good mechanical properties are attributed to the suppression effect of the local-ordered regions on the propagation of shear bands.

引用

页码：1214 / 1218

页数：5

共 18 条

[1] Formation, thermal stability and mechanical properties of Ca-based bulk glassy alloys [J].

Amiya, K ;

Inoue, A .

MATERIALS TRANSACTIONS, 2002, 43 (01) :81-84

[2]

DEBOER FR, 1988, COHESION METALS, P224

[3] MECHANICAL-PROPERTIES OF FE-SI-B AMORPHOUS WIRES PRODUCED BY IN-ROTATING-WATER SPINNING METHOD [J].

HAGIWARA, M ;

INOUE, A ;

MASUMOTO, T .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1982, 13 (03) :373-382

[4] Structural variation of Fe-Nb-B metallic glasses during crystallization process [J].

Imafuku, M ;

Sato, S ;

Koshiba, H ;

Matsubara, E ;

Inoue, A .

SCRIPTA MATERIALIA, 2001, 44 (8-9) :2369-2372

[5] New bulk amorphous Fe-(Co,Ni)-M-B (M=Zr,Hf,Nb,Ta,Mo,W) alloys with good soft magnetic properties [J].

Inoue, A ;

Zhang, T ;

Koshiba, H ;

Makino, A .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) :6326-6328

[6] Stabilization of metallic supercooled liquid and bulk amorphous alloys [J].

Inoue, A .

ACTA MATERIALIA, 2000, 48 (01) :279-306

[7] AL-LA-NI AMORPHOUS-ALLOYS WITH A WIDE SUPERCOOLED LIQUID REGION [J].

INOUE, A ;

ZHANG, T ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1989, 30 (12) :965-972

[8] FE-BASED FERROMAGNETIC GLASSY ALLOYS WITH WIDE SUPERCOOLED LIQUID REGION [J].

INOUE, A ;

GOOK, JS .

MATERIALS TRANSACTIONS JIM, 1995, 36 (09) :1180-1183

[9] Soft magnetic bulk glassy Fe-B-Si-Nb alloys with high saturation magnetization above 1.5 T [J].

Inoue, A ;

Shen, B .

MATERIALS TRANSACTIONS, 2002, 43 (04) :766-769

[10] HIGH-STRENGTH BULK AMORPHOUS-ALLOYS WITH LOW CRITICAL COOLING RATES [J].

INOUE, A .

MATERIALS TRANSACTIONS JIM, 1995, 36 (07) :866-875

← 1 2 →