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Dynamic fracture toughness of 6061Al composites reinforced with SiC particulates
Qian, LH; Kobayashi, T; Toda, H; Wang, ZG
Corresponding AuthorQian, LH()
2001-11-01
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume318Issue:1-2Pages:189-196
AbstractDynamic fracture toughness experiments were conducted at room temperature on 6061Al alloy reinforced with 15 and 25% volume fractions of 9.5mum SiC particulates. The fracture properties were evaluated in terms of crack initiation toughness, crack propagation energy and total absorbed energy. The dynamic fracture of the unreinforced 6061Al alloy was also studied as a comparison. The results of dynamic tests for both composites and matrix alloy are compared with their respective quasi-static cases. It is found that addition of SiC particles can drastically decrease fracture toughness of 6061Al alloy at both quasi-static and dynamic loading rates. 15%SiCp composite shows a considerable increase in crack initiation toughness and a much greater increment of crack propagation energy in dynamic loading case compared with static loading case, whereas 25%SiCp composite exhibits a negligible increment of crack propagation energy and a reduced increase of crack initiation energy in dynamic case in contrast to 15%SiCp composite. Detailed SEM examination of the fracture surfaces and optical observation of microstructures beneath the fracture surfaces of both composites, combined with an in-situ SEM observation, were made to investigate the fracture processes of the composites. (C) 2001 Elsevier Science B.V. All rights reserved.
Keywordfracture toughness dynamic fracture strain rate composites Al alloy
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000173196700022
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/111900
Collection中国科学院金属研究所
Corresponding AuthorQian, LH
Affiliation1.Acad Sinica, Met Res Inst, State Key Lab Fatigue & Fracture Mat, Shenyang 110015, Peoples R China
2.Toyohashi Univ Technol, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan
Recommended Citation
GB/T 7714
Qian, LH,Kobayashi, T,Toda, H,et al. Dynamic fracture toughness of 6061Al composites reinforced with SiC particulates[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2001,318(1-2):189-196.
APA Qian, LH,Kobayashi, T,Toda, H,&Wang, ZG.(2001).Dynamic fracture toughness of 6061Al composites reinforced with SiC particulates.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,318(1-2),189-196.
MLA Qian, LH,et al."Dynamic fracture toughness of 6061Al composites reinforced with SiC particulates".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 318.1-2(2001):189-196.
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