Effect of Milling Time on the Microstructure and Tensile Properties of Ultrafine Grained Ni-SiC Composites at Room Temperature

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	Effect of Milling Time on the Microstructure and Tensile Properties of Ultrafine Grained Ni-SiC Composites at Room Temperature
	Huang, HF; Yang, C; de los Reyes, M; Zhou, YF; Yan, L; Zhou, XT
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2015
卷号	31 期号:9 页码:923—929
关键词	SEVERE PLASTIC-DEFORMATION AL MATRIX COMPOSITES HALL-PETCH RELATION MECHANICAL-PROPERTIES DISPERSION DUCTILITY STRENGTH BEHAVIOR ELECTRODEPOSITION SURFACTANTS
ISSN号	1005-0302
通讯作者	Huang, HF (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
英文摘要	Bulk metallic nickel-silicon carbide nano-particle (Ni-SiCNP) composites, with milling time ranged from 8 to 48 h, were prepared in a planetary ball mill and sintered using a spark plasma sintering (SPS) furnace. The microstructure of the Ni-SiCNP composites was characterized by transmission electron microscopy (TEM) and their mechanical properties were investigated by tensile measurements. The TEM results showed well-dispersed SiCNP particles, either within the matrix, between twins or along grain boundaries (GB), as well as the presence of stacking faults and twin structures, characteristics of materials with low stacking fault energy. Dislocation lines were also observed to interact with the SiCNP which were plastically nondeformable. A synergistic relationship existed between Hall-Petch strengthening and dispersion strengthening mechanisms, which was shown to greatly influence the mechanical properties of the Ni-SiCNP composites. Both the maximum yield and tensile strengths were found in the Ni-SiCNP composite with a milling time of 48 h, whereas the increased rate of strengths drastically decreased in material milled above 8 h due to the significant SiCNP agglomeration. The ball milling process resulted in the formation of nano-scale, ultra-fine grained (UFG) Ni-SiCNP composites when the milling time was extended for longer periods, greatly strengthening these materials. The sharp decrease in elongation percentages, however, should be comprehensively considered before irreversible inelastic deformation. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000360653000009
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24907]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Huang, HF,Yang, C,de los Reyes, M,et al. Effect of Milling Time on the Microstructure and Tensile Properties of Ultrafine Grained Ni-SiC Composites at Room Temperature[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2015,31(9):923—929.
APA	Huang, HF,Yang, C,de los Reyes, M,Zhou, YF,Yan, L,&Zhou, XT.(2015).Effect of Milling Time on the Microstructure and Tensile Properties of Ultrafine Grained Ni-SiC Composites at Room Temperature.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,31(9),923—929.
MLA	Huang, HF,et al."Effect of Milling Time on the Microstructure and Tensile Properties of Ultrafine Grained Ni-SiC Composites at Room Temperature".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 31.9(2015):923—929.