(Co1-xFex)68B21.9Si5.1Nb5 bulk glassy alloys with high glass-forming ability, excellent soft-magnetic properties and superhigh fracture strength

被引：30

作者：

Dong, Yaqiang ^{[1
]}

Wang, Anding ^{[1
]}

Man, Qikui ^{[1
]}

Shen, Baolong ^{[1
]}

机构：

[1] Chinese Acad Sci, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Key Lab Magnet Mat & Devices, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

来源：

INTERMETALLICS | 2012年 / 23卷

基金：

中国国家自然科学基金;

关键词：

Glasses; metallic; Magnetic properties; Fracture stress; Thermal stability; SUPERCOOLED LIQUID REGION; AMORPHOUS-ALLOYS; MAGNETOSTRICTION; ENHANCEMENT;

D O I：

10.1016/j.intermet.2011.12.020

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The glass-forming ability (GFA), soft-magnetic properties and mechanical properties of (Co1-xFex)(68)B21.9Si5.1Nb5 (x = 0.1-0.5) glassy alloys were investigated. The (Co1-xFex)(68)B21.9Si5.1Nb5 glassy alloys exhibit a wide supercooled liquid region of over 40 K, and high reduced glass transition temperatures between 0.603 and 0.648. As a result, the (Co1-xFex)(68)B21.9Si5.1Nb5 bulk glassy alloys (BGAs) with diameters up to 5.5 mm were produced by copper mold casting. In addition to high GFA, this Co-based glassy alloys exhibit excellent soft-magnetic properties, i.e., saturation magnetization of 0.49-0.91 T, low coercive force of 0.71-1.58 A/m, and high effective permeability of (2.21-3.25) x 10(4) at 1 kHz under a field of 1 A/m. Besides, this Co-based BGAs also exhibit superhigh fracture strength of 4250-4450 MPa and plastic strain of 0.6-1.3%. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：63 / 67

页数：5

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