Excellent thermal stability and bulk glass forming ability of Fe-B-Nb-Y soft magnetic metallic glass

被引：51

作者：

Lee, Sangmin ^{[1
,1
]}

Kato, Hidemi ^{[1
]}

Kubota, Takeshi ^{[1
]}

Yubuta, Kunio ^{[1
]}

Makino, Akihiro ^{[1
]}

Inoue, Akihisa ^{[1
]}

机构：

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

来源：

MATERIALS TRANSACTIONS | 2008年 / 49卷 / 03期

关键词：

metallic glasses; iron-based alloy; high thermal stability; excellent soft magnetic properties;

D O I：

10.2320/matertrans.MBW200732

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of Y addition on the glass forming ability (GFA) of a Fe-B-Nb marginal glass former, and annealing effects on glassy/supercooled liquid phases as well as soft magnetic properties in the multicomponent Fe-B-Nb-Y alloy system were investigated. The origin of highly improved GFA in the multicomponent system is discussed with related to a characteristic exothermic phase transformation, chemical short range ordering, in the supercooled liquid region due to the positive heat of mixing between Nb-Y elements. The separating tendency between Nb and Y elements is considered to suppress precipitation of metastable Fe23B6 and alpha-Fe crystalline phases, thus to result in highly improving GFA and distinct high thermal stability against heat treatment of the alloy system. In addition, a glassy ring was fabricated by copper mold casting and magnetic properties were investigated before/after heat treatment.

引用

页码：506 / 512

页数：7

共 24 条

[1] Fe-B-Si-Nb bulk metallic glasses with high strength above 4000 MPa and distinct plastic elongation [J].

Amiya, K ;

Urata, A ;

Nishiyama, N ;

Inoue, A .

MATERIALS TRANSACTIONS, 2004, 45 (04) :1214-1218

[2] GLASSY METALS [J].

CHEN, HS .

REPORTS ON PROGRESS IN PHYSICS, 1980, 43 (04) :353-+

[3]

DeCristofaro N, 1998, MRS BULL, V23, P50, DOI 10.1557/S0883769400030451

[4] Quaternary Fe-based bulk metallic glasses with a diameter of 5 mm [J].

Han, Z. ;

Zhang, J. ;

Li, Y. .

INTERMETALLICS, 2007, 15 (11) :1447-1452

[5] 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

[6] 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

[7] 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

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

INOUE, A .

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

[9] ZR-AL-NI AMORPHOUS-ALLOYS WITH HIGH GLASS-TRANSITION TEMPERATURE AND SIGNIFICANT SUPERCOOLED LIQUID REGION [J].

INOUE, A ;

ZHANG, T ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1990, 31 (03) :177-183

[10] 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

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