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Effect of Minor Alloying on Crystallization Behavior and Thermal Properties of Zr64.5Ni15.5Al11.5Cu8.5 Bulk Amorphous Alloy
Iqbal, Muhammad1; Akhter, Javed Iqbal1; Zhang, Haifeng2; Hu, Zhuangqi2
Corresponding AuthorIqbal, Muhammad(miqbalchishti@yahoo.com)
2011-06-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume27Issue:6Pages:534-538
AbstractMinor 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.
KeywordActivation energy Thermal properties Glass-forming ability Thermal stability Precipitation Microstructure
Funding OrganizationNational Natural Science Foundation of China ; Ministry of Science Technology of China
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China ; Ministry of Science Technology of China
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000292781400010
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/103769
Collection中国科学院金属研究所
Corresponding AuthorIqbal, Muhammad
Affiliation1.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
Recommended Citation
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.
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