Evidence of structure relaxation prior to nanocrystallization in an Al-based metallic glass

IMR OpenIR

	Evidence of structure relaxation prior to nanocrystallization in an Al-based metallic glass; Evidence of structure relaxation prior to nanocrystallization in an Al-based metallic glass
	H. W. Yang; J. Q. Wang
	2006 ; 2006
发表期刊	Scripta Materialia ; Scripta Materialia
ISSN	1359-6462 ; 1359-6462
卷号	55 期号:4 页码:359-362
摘要	An asymptotically decreasing signal is observed in the initial part of the isothermal DSC curves at 275, 285 and 290 degrees C of an Al85Ni5Y6Co2Fe2 metallic glass with a supercooled liquid region. We demonstrate that the monotonically decaying signal originates from the structural relaxation of the quenched glass, rather than from the growth of the quenched-in nuclei. At 285 and 290 degrees C, an exothermic peak overlaps with the structural relaxation, corresponding to the precipitation of nanometer-sized Al crystals. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; An asymptotically decreasing signal is observed in the initial part of the isothermal DSC curves at 275, 285 and 290 degrees C of an Al85Ni5Y6Co2Fe2 metallic glass with a supercooled liquid region. We demonstrate that the monotonically decaying signal originates from the structural relaxation of the quenched glass, rather than from the growth of the quenched-in nuclei. At 285 and 290 degrees C, an exothermic peak overlaps with the structural relaxation, corresponding to the precipitation of nanometer-sized Al crystals. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china.;wang, jq (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china;jqwang@imr.ac.cn ; chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china.;wang, jq (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china;jqwang@imr.ac.cn
关键词	Metallic Glasses Metallic Glasses Differential Scanning Calorimetry (Dsc) Differential Scanning Calorimetry (Dsc) Crystallization Crystallization Structural Relaxation Structural Relaxation Calorimetric Evidence Calorimetric Evidence Amorphous-alloys Amorphous-alloys Devitrification Devitrification Transition Transition
URL	查看原文 ; 查看原文
WOS记录号	WOS:000238815800020 ; WOS:000238815800020
引用统计	被引频次：18[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/321006/34640
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. W. Yang,J. Q. Wang. Evidence of structure relaxation prior to nanocrystallization in an Al-based metallic glass, Evidence of structure relaxation prior to nanocrystallization in an Al-based metallic glass[J]. Scripta Materialia, Scripta Materialia,2006, 2006,55, 55(4):359-362, 359-362.
APA	H. W. Yang,&J. Q. Wang.(2006).Evidence of structure relaxation prior to nanocrystallization in an Al-based metallic glass.Scripta Materialia,55(4),359-362.
MLA	H. W. Yang,et al."Evidence of structure relaxation prior to nanocrystallization in an Al-based metallic glass".Scripta Materialia 55.4(2006):359-362.