Effect of Minor Alloying on Crystallization Behavior and Thermal Properties of Zr64.5Ni15.5Al11.5Cu8.5 Bulk Amorphous Alloy

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	Effect of Minor Alloying on Crystallization Behavior and Thermal Properties of Zr64.5Ni15.5Al11.5Cu8.5 Bulk Amorphous Alloy
	Iqbal, Muhammad 1; Akhter, Javed Iqbal 1; Zhang, Haifeng 2; Hu, Zhuangqi 2
通讯作者	Iqbal, Muhammad(miqbalchishti@yahoo.com)
	2011-06-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	27 期号:6 页码:534-538
摘要	Minor alloying plays an important role in the synthesis and improvement of thermal stability of bulk metallic glasses (BMGs). The present study was conducted to investigate the effect of minor additions of Y, Ti and Nb on the crystallization behavior and the thermal properties of Zr64.5Ni15.5Al11.5C8.5 alloy. Thermal parameters and the activation energies for crystallization were calculated for four (Zr0.645Ni0.155Al0.115-Cu-0.085)(100-x)M-x (M=Y, Ti and Nb, while x=0, 2 at.%) alloys. The present alloys have wide supercooled liquid region of >= 87 K. Maximum activation energy was found to be greater than 300 kJ/mol for the base alloy. Four crystalline phases were identified in the samples annealed at 823 K for 20 min. Reduced glass transition temperature (T-rg) and other thermal parameters such as gamma, delta and beta were improved by Y and Ti addition. Nb addition resists crystallization below annealing temperature 713 K, however, its effect on thermal properties is not very promising.
关键词	Activation energy Thermal properties Glass-forming ability Thermal stability Precipitation Microstructure
资助者	National Natural Science Foundation of China ; Ministry of Science Technology of China
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; Ministry of Science Technology of China
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000292781400010
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：8[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/321006/103769
专题	中国科学院金属研究所
通讯作者	Iqbal, Muhammad
作者单位	1.Pakistan Inst Nucl Sci & Technol PINSTECH, Div Phys, Microstruct Studies Grp, Islamabad, Pakistan 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Iqbal, Muhammad,Akhter, Javed Iqbal,Zhang, Haifeng,et al. Effect of Minor Alloying on Crystallization Behavior and Thermal Properties of Zr64.5Ni15.5Al11.5Cu8.5 Bulk Amorphous Alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2011,27(6):534-538.
APA	Iqbal, Muhammad,Akhter, Javed Iqbal,Zhang, Haifeng,&Hu, Zhuangqi.(2011).Effect of Minor Alloying on Crystallization Behavior and Thermal Properties of Zr64.5Ni15.5Al11.5Cu8.5 Bulk Amorphous Alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,27(6),534-538.
MLA	Iqbal, Muhammad,et al."Effect of Minor Alloying on Crystallization Behavior and Thermal Properties of Zr64.5Ni15.5Al11.5Cu8.5 Bulk Amorphous Alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 27.6(2011):534-538.