Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processing

In this study, friction stir processing (FSP) was used to successfully prepare SiC particle-reinforced aluminum matrix composites. The effects of SiC particle volume fraction on microstructure and mechanical properties were investigated using scanning electron microscopy, electron backscattering dif...

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Main Authors: Yuhan Duan, Yuehui Dang, Shuang Yi, Xianming Cao, Yu Cao, Zejun Chen
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2238785424029028
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author Yuhan Duan
Yuehui Dang
Shuang Yi
Xianming Cao
Yu Cao
Zejun Chen
author_facet Yuhan Duan
Yuehui Dang
Shuang Yi
Xianming Cao
Yu Cao
Zejun Chen
author_sort Yuhan Duan
collection DOAJ
description In this study, friction stir processing (FSP) was used to successfully prepare SiC particle-reinforced aluminum matrix composites. The effects of SiC particle volume fraction on microstructure and mechanical properties were investigated using scanning electron microscopy, electron backscattering diffraction, tensile testing, and impact experiments. The results showed that the composites had good microstructures and mechanical properties when the volume fraction of SiC particles was 5%; in this case, the SiC particles were uniformly distributed inside the basis material with the minimum grain size. The uniform distribution of SiC particles transferred loads efficiently during impact, absorbing a significant amount of energy. This causes crack deflection and delays the fracture process, allowing the material to withstand higher impact loads while maintaining excellent impact toughness, with a maximum impact load and impact energy of 4.83 kN and 6780 mJ, respectively. However, the addition of 10% SiC particles in the composite caused agglomeration, forming defects that increased the likelihood of crack initiation and propagation, reducing the composite's performance.
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institution Kabale University
issn 2238-7854
language English
publishDate 2025-01-01
publisher Elsevier
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series Journal of Materials Research and Technology
spelling doaj-art-af29d691885e47d685411a02c6fb70cc2025-01-19T06:25:27ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013413491361Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processingYuhan Duan0Yuehui Dang1Shuang Yi2Xianming Cao3Yu Cao4Zejun Chen5College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCorresponding author.; College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaIn this study, friction stir processing (FSP) was used to successfully prepare SiC particle-reinforced aluminum matrix composites. The effects of SiC particle volume fraction on microstructure and mechanical properties were investigated using scanning electron microscopy, electron backscattering diffraction, tensile testing, and impact experiments. The results showed that the composites had good microstructures and mechanical properties when the volume fraction of SiC particles was 5%; in this case, the SiC particles were uniformly distributed inside the basis material with the minimum grain size. The uniform distribution of SiC particles transferred loads efficiently during impact, absorbing a significant amount of energy. This causes crack deflection and delays the fracture process, allowing the material to withstand higher impact loads while maintaining excellent impact toughness, with a maximum impact load and impact energy of 4.83 kN and 6780 mJ, respectively. However, the addition of 10% SiC particles in the composite caused agglomeration, forming defects that increased the likelihood of crack initiation and propagation, reducing the composite's performance.http://www.sciencedirect.com/science/article/pii/S2238785424029028Particle reinforced aluminum matrix compositesFriction stir processingMicrostructureImpact behavior
spellingShingle Yuhan Duan
Yuehui Dang
Shuang Yi
Xianming Cao
Yu Cao
Zejun Chen
Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processing
Journal of Materials Research and Technology
Particle reinforced aluminum matrix composites
Friction stir processing
Microstructure
Impact behavior
title Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processing
title_full Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processing
title_fullStr Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processing
title_full_unstemmed Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processing
title_short Microstructure and properties of SiC particle reinforced AA7075 composites by friction stir processing
title_sort microstructure and properties of sic particle reinforced aa7075 composites by friction stir processing
topic Particle reinforced aluminum matrix composites
Friction stir processing
Microstructure
Impact behavior
url http://www.sciencedirect.com/science/article/pii/S2238785424029028
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