Effect of additional elements on mechanical properties of a specially constituted Zr-based alloy

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	Effect of additional elements on mechanical properties of a specially constituted Zr-based alloy; Effect of additional elements on mechanical properties of a specially constituted Zr-based alloy
	M. Iqbal; W. S. Sun; H. F. Zhang; J. I. Akhter; Z. Q. Hu
	2007 ; 2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing ; Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093 ; 0921-5093
卷号	447 期号:1-2 页码:167-173
摘要	Bulk metallic glasses (BMGs), especially ZrCuAlNi alloys, are important materials due to their very attractive physical and mechanical properties. However, their applications are restricted due to processing limitations and cost effectiveness. Materials scientists are trying to design and synthesize economical BMGs using inexpensive materials with improved properties. In the present study, six alloys having compositions (Zr0.65Cu0.18Ni0.09Al0.08)(100-x)M-x (where M = Y, Ti, Nb, Er and W and x = 0 and 2 at.%) were synthesized by Cu mould casting using 2-3N pure elements. The base alloy Zr65CU18Ni9Al8 was designed following the Inoue's rules and also adopting the criterion of average valance electrons/atom (e/a ratio = 1.3950) and average atomic size R. = 0.1498 nm. Characterization of alloys was done by XRD, differential scanning calorimetry (DSC) and SEWEDS. Maximum AT, was found to be 129 K for the base alloy. Mechanical properties like Vicker's microhardness, nanohardness, elastic modulus, density, fracture strength and shear angles were measured. Enhancement in ductility was achieved by adding Ti and Nb. Microstructure of as-cast and heat-treated compression tested samples was evaluated. (c) 2006 Elsevier B.V. All rights reserved.; Bulk metallic glasses (BMGs), especially ZrCuAlNi alloys, are important materials due to their very attractive physical and mechanical properties. However, their applications are restricted due to processing limitations and cost effectiveness. Materials scientists are trying to design and synthesize economical BMGs using inexpensive materials with improved properties. In the present study, six alloys having compositions (Zr0.65Cu0.18Ni0.09Al0.08)(100-x)M-x (where M = Y, Ti, Nb, Er and W and x = 0 and 2 at.%) were synthesized by Cu mould casting using 2-3N pure elements. The base alloy Zr65CU18Ni9Al8 was designed following the Inoue's rules and also adopting the criterion of average valance electrons/atom (e/a ratio = 1.3950) and average atomic size R. = 0.1498 nm. Characterization of alloys was done by XRD, differential scanning calorimetry (DSC) and SEWEDS. Maximum AT, was found to be 129 K for the base alloy. Mechanical properties like Vicker's microhardness, nanohardness, elastic modulus, density, fracture strength and shear angles were measured. Enhancement in ductility was achieved by adding Ti and Nb. Microstructure of as-cast and heat-treated compression tested samples was evaluated. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, shenyang natl lab mat sci, met res inst, shenyang 110016, peoples r china. pakistan inst nucl sci & technol, phys res div, islamabad, pakistan.;iqbal, m (reprint author), chinese acad sci, shenyang natl lab mat sci, met res inst, 72 wenhua rd, shenyang 110016, peoples r china;miqbalchishti@yahoo.com 2jiakhter@yahoo.com ; chinese acad sci, shenyang natl lab mat sci, met res inst, shenyang 110016, peoples r china. pakistan inst nucl sci & technol, phys res div, islamabad, pakistan.;iqbal, m (reprint author), chinese acad sci, shenyang natl lab mat sci, met res inst, 72 wenhua rd, shenyang 110016, peoples r china;miqbalchishti@yahoo.com 2jiakhter@yahoo.com
关键词	Zr-based Bulk Amorphous Alloys Zr-based Bulk Amorphous Alloys Mechanical Properties Mechanical Properties Bulk Metallic Bulk Metallic Glasses Glasses Nanohardness Nanohardness Shear Angle Shear Angle Glass-forming Ability Glass-forming Ability Microalloying Microalloying Bulk Metallic Glasses Bulk Metallic Glasses Forming Ability Forming Ability Supercooled Liquid Supercooled Liquid Amorphous-alloys Amorphous-alloys Crystallization Crystallization Microstructure Microstructure Stabilization Stabilization Criterion Criterion Behavior Behavior Nb Nb
URL	查看原文 ; 查看原文
WOS记录号	WOS:000244209000025 ; WOS:000244209000025
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33603
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Iqbal,W. S. Sun,H. F. Zhang,et al. Effect of additional elements on mechanical properties of a specially constituted Zr-based alloy, Effect of additional elements on mechanical properties of a specially constituted Zr-based alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007, 2007,447, 447(1-2):167-173, 167-173.
APA	M. Iqbal,W. S. Sun,H. F. Zhang,J. I. Akhter,&Z. Q. Hu.(2007).Effect of additional elements on mechanical properties of a specially constituted Zr-based alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,447(1-2),167-173.
MLA	M. Iqbal,et al."Effect of additional elements on mechanical properties of a specially constituted Zr-based alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 447.1-2(2007):167-173.