Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region

doi:10.1016/j.msea.2005.06.061

IMR OpenIR

	Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region
	Yang, HW ; Tjong, SC ; Wang, JQ
通讯作者	Wang, JQ()
	2005-10-15
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	406 期号:1-2 页码:160-165
摘要	The effect of Fe additions on glass formation and stability of an amorphous Al85Ni5Y8Co2 alloy with a large supercooled liquid region has been studied using differential scanning calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM) techniques. It was found that the Fe content significantly affects the primary crystallization kinetics of this alloy, but little on its glass-forming ability (GFA). Interestingly, an Al85Ni5Y6Fe2Co2 glassy alloy, with a wide supercooled liquid region of 24 K and a superior stability against primary crystallization up to 570 K, was synthesized. Its devitrification kinetics appears to be proceeded by two-stage primary reaction over the temperature range of 570-645 K through a continuous process of the nucleation and growth of Al nanocrystals, followed by the concurrence of Al-3(Ni, Fe), Al9Co2 and Al3Y intermetallics. The formation of such a more stable glass due to partial replacement of Y by Fe in Al85Ni5Y8Co2 is proposed to be associated with the amorphous structure and the solute concentration distribution feature. (c) 2005 Elsevier B.V. All rights reserved.
关键词	metallic glasses devitrification kinetics nanocrystals
DOI	10.1016/j.msea.2005.06.061
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000232565100021
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/82596
通讯作者	Wang, JQ
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Yang, HW,Tjong, SC,Wang, JQ. Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2005,406(1-2):160-165.
APA	Yang, HW,Tjong, SC,&Wang, JQ.(2005).Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,406(1-2),160-165.
MLA	Yang, HW,et al."Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 406.1-2(2005):160-165.