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

被引：49

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
Amiya, K
Urata, A
Nishiyama, N
Inoue, A
[J]. MATERIALS TRANSACTIONS, 2004, 45 (04) : 1214 - 1218
[2] GLASSY METALS
CHEN, HS
[J]. 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
Han, Z.
Zhang, J.
Li, Y.
[J]. INTERMETALLICS, 2007, 15 (11) : 1447 - 1452
[5] Structural variation of Fe-Nb-B metallic glasses during crystallization process
Imafuku, M
Sato, S
Koshiba, H
Matsubara, E
Inoue, A
[J]. SCRIPTA MATERIALIA, 2001, 44 (8-9) : 2369 - 2372
[6] AL-LA-NI AMORPHOUS-ALLOYS WITH A WIDE SUPERCOOLED LIQUID REGION
INOUE, A
ZHANG, T
MASUMOTO, T
[J]. 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
Inoue, A
Shen, B
[J]. MATERIALS TRANSACTIONS, 2002, 43 (04) : 766 - 769
[8] HIGH-STRENGTH BULK AMORPHOUS-ALLOYS WITH LOW CRITICAL COOLING RATES
INOUE, A
[J]. MATERIALS TRANSACTIONS JIM, 1995, 36 (07): : 866 - 875
[9] ZR-AL-NI AMORPHOUS-ALLOYS WITH HIGH GLASS-TRANSITION TEMPERATURE AND SIGNIFICANT SUPERCOOLED LIQUID REGION
INOUE, A
ZHANG, T
MASUMOTO, T
[J]. MATERIALS TRANSACTIONS JIM, 1990, 31 (03): : 177 - 183
[10] PREPARATION OF 16 MM DIAMETER ROD OF AMORPHOUS ZR65AL7.5NI10CU17.5 ALLOY
INOUE, A
ZHANG, T
NISHIYAMA, N
OHBA, K
MASUMOTO, T
[J]. MATERIALS TRANSACTIONS JIM, 1993, 34 (12): : 1234 - 1237

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