Flow Stress of Biomorphous Metal-Matrix Composites

doi:10.1016/j.msea.2004.07.060

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	Flow Stress of Biomorphous Metal-Matrix Composites
	Jia BH; Gao HJ; Wang ZQ(王自强); Gao, HJ (reprint author), Max Planck Inst Met Res, Heisenbergstr 3, D-70569 Stuttgart, Germany.
发表期刊	Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
	2004
卷号	386 期号:1-2 页码:435-441
ISSN	0921-5093
摘要	For metal-matrix composites (MMCs), interfacial debonding between the ductile matrix and the reinforcing hard inclusions is an important failure mode. A fundamental approach to improving the properties of MMCs is to optimize their microstructure to achieve maximum strength and toughness. Here, we investigate the flow stress of a MMC with a nanoscale microstructure similar to that of bone. Such a 'biomorphous' MMC would be made of staggered hard and slender nanoparticles embedded in a ductile matrix. We show that the large aspect ratio and the nanometer size of inclusions in the biomorphous MMC lead to significantly improved properties with increased tolerance of interfacial damage. In this case, the partially debonded inclusions continue to carry mechanical load transferred via longitudinal shearing of the matrix material between neighboring inclusions. The larger the inclusion aspect ratio, the larger is the flow stress and work hardening rate for the composite. Increasing the volume concentration of inclusion also makes the biomorphous MMC more tolerant of interfacial damage.
学科领域	力学
DOI	10.1016/j.msea.2004.07.060
收录类别	SCI
语种	英语
WOS记录号	WOS:000225127800053
关键词[WOS]	STRAIN GRADIENT PLASTICITY ; AL-SIC COMPOSITES ; REINFORCEMENT FRACTURE ; MECHANICAL-PROPERTIES ; PARTICLE-SIZE ; BIOLOGICAL-MATERIALS ; VOID NUCLEATION ; DUCTILE MATRIX ; ALUMINUM-ALLOY ; DEFORMATION
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
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/15879
专题	力学所知识产出(1956-2008)
通讯作者	Gao, HJ (reprint author), Max Planck Inst Met Res, Heisenbergstr 3, D-70569 Stuttgart, Germany.
推荐引用方式 GB/T 7714	Jia BH,Gao HJ,Wang ZQ,et al. Flow Stress of Biomorphous Metal-Matrix Composites[J]. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,2004,386,1-2,:435-441.
APA	Jia BH,Gao HJ,王自强,&Gao, HJ .(2004).Flow Stress of Biomorphous Metal-Matrix Composites.Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,386(1-2),435-441.
MLA	Jia BH,et al."Flow Stress of Biomorphous Metal-Matrix Composites".Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 386.1-2(2004):435-441.

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