Consolidation and properties of ball-milled Ti50Cu18Ni22Al4Sn6 glassy alloy by equal channel angular extrusion

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	Consolidation and properties of ball-milled Ti50Cu18Ni22Al4Sn6 glassy alloy by equal channel angular extrusion
	L. C. Zhang; J. Xu; E. Ma
	2006
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	434 期号:1-2 页码:280-288
摘要	Ball-milled Ti50Cu18Ni22Al4Sn6 amorphous powders were consolidated by equal channel angular extrusion (ECAE) near the glass transition temperature. A density of about 97% was achieved. The incomplete densification was a result of the powders experiencing insufficient viscous flow as they partially crystallized into the NiTi intermetallic phase during the ECAE processing. Partial devitrification led to a slight increase in the glass transition temperature (T.) and minor decrease in the crystallization temperature (T,), when compared with the starting amorphous powders. However, the width of the supercooled liquid region for the ECAE samples remained large, similar to 54-K. Under uniaxial compression, the ECAE consolidated samples failed prematurely before yielding due to brittle failure possibly triggered by the pre-existing minor flaws in the specimens, resulting in a much lower compressive fracture strength with respect to that estimated from the microhardness. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. johns hopkins univ, dept mat sci & engn, baltimore, md 21218 usa.;xu, j (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;jianxu@imr.ac.cn
关键词	Equal Channel Angular Extrusion Ball Milling Amorphous Alloys Supercooled Liquid Region Titanium Supercooled Liquid Region Bulk Amorphous-alloys Gas-atomized Powders Metallic Glasses Mechanical-properties Thermal-stability Magnetic-properties Warm Extrusion Behavior Fabrication
URL	查看原文
WOS记录号	WOS:000240896400039
引用统计	被引频次：72[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/321006/34701
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. C. Zhang,J. Xu,E. Ma. Consolidation and properties of ball-milled Ti50Cu18Ni22Al4Sn6 glassy alloy by equal channel angular extrusion[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,434(1-2):280-288.
APA	L. C. Zhang,J. Xu,&E. Ma.(2006).Consolidation and properties of ball-milled Ti50Cu18Ni22Al4Sn6 glassy alloy by equal channel angular extrusion.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,434(1-2),280-288.
MLA	L. C. Zhang,et al."Consolidation and properties of ball-milled Ti50Cu18Ni22Al4Sn6 glassy alloy by equal channel angular extrusion".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 434.1-2(2006):280-288.