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Microstructure and wear characterization of rice husk ash reinforced copper matrix composites prepared using friction stir processing.

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Title: Microstructure and wear characterization of rice husk ash reinforced copper matrix composites prepared using friction stir processing.
Authors: Dinaharan, I.1 dinaweld2009@gmail.com, Kalaiselvan, K.2 kalaiselvanmohit@gmail.com, Akinlabi, E.T.1 etakinlabi@uj.ac.za, Davim, J. Paulo3 pdavim@ua.pt
Source: Journal of Alloys & Compounds. Sep2017, Vol. 718, p150-160. 11p.
Subjects: Microstructure, Rice hulls, Copper, Friction stir processing, Recrystallization (Metallurgy)
Abstract: Rice husk ash (RHA) is an economical reinforcement to improve the poor wear behavior of pure copper. This work concentrates on the preparation of Cu/RHA (0,6,12,18 vol.%) copper matrix composites (CMCs) by friction stir processing (FSP). Grooves were machined on the copper plates to deposit RHA particles and were friction stir processed at a chosen set of process parameters. The microstructure was studied using optical, scanning and transmission electron microscopy. The wear behavior was estimated using a pin-on-disc apparatus. The micrographs revealed a uniform dispersion of RHA particles in the copper matrix. Neither aggregation nor segregation was observed. The variation in the dispersion of RHA particles at different regions within the stir zone was negligible. A good interfacial bonding between RHA particles and the copper matrix was realized. Many RHA particles encountered break up. A remarkable grain refinement was achieved due to dynamic recrystallization and pinning effect of RHA particles. The wear behavior under dry sliding condition was presented in detail. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 123502667
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Microstructure and wear characterization of rice husk ash reinforced copper matrix composites prepared using friction stir processing.
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  Data: <searchLink fieldCode="AR" term="%22Dinaharan%2C+I%2E%22">Dinaharan, I.</searchLink><relatesTo>1</relatesTo><i> dinaweld2009@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Kalaiselvan%2C+K%2E%22">Kalaiselvan, K.</searchLink><relatesTo>2</relatesTo><i> kalaiselvanmohit@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Akinlabi%2C+E%2ET%2E%22">Akinlabi, E.T.</searchLink><relatesTo>1</relatesTo><i> etakinlabi@uj.ac.za</i><br /><searchLink fieldCode="AR" term="%22Davim%2C+J%2E+Paulo%22">Davim, J. Paulo</searchLink><relatesTo>3</relatesTo><i> pdavim@ua.pt</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Sep2017, Vol. 718, p150-160. 11p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Rice+hulls%22">Rice hulls</searchLink><br /><searchLink fieldCode="DE" term="%22Copper%22">Copper</searchLink><br /><searchLink fieldCode="DE" term="%22Friction+stir+processing%22">Friction stir processing</searchLink><br /><searchLink fieldCode="DE" term="%22Recrystallization+%28Metallurgy%29%22">Recrystallization (Metallurgy)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Rice husk ash (RHA) is an economical reinforcement to improve the poor wear behavior of pure copper. This work concentrates on the preparation of Cu/RHA (0,6,12,18 vol.%) copper matrix composites (CMCs) by friction stir processing (FSP). Grooves were machined on the copper plates to deposit RHA particles and were friction stir processed at a chosen set of process parameters. The microstructure was studied using optical, scanning and transmission electron microscopy. The wear behavior was estimated using a pin-on-disc apparatus. The micrographs revealed a uniform dispersion of RHA particles in the copper matrix. Neither aggregation nor segregation was observed. The variation in the dispersion of RHA particles at different regions within the stir zone was negligible. A good interfacial bonding between RHA particles and the copper matrix was realized. Many RHA particles encountered break up. A remarkable grain refinement was achieved due to dynamic recrystallization and pinning effect of RHA particles. The wear behavior under dry sliding condition was presented in detail. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jallcom.2017.05.117
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 150
    Subjects:
      – SubjectFull: Microstructure
        Type: general
      – SubjectFull: Rice hulls
        Type: general
      – SubjectFull: Copper
        Type: general
      – SubjectFull: Friction stir processing
        Type: general
      – SubjectFull: Recrystallization (Metallurgy)
        Type: general
    Titles:
      – TitleFull: Microstructure and wear characterization of rice husk ash reinforced copper matrix composites prepared using friction stir processing.
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            NameFull: Dinaharan, I.
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            NameFull: Kalaiselvan, K.
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            NameFull: Akinlabi, E.T.
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            NameFull: Davim, J. Paulo
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            – D: 25
              M: 09
              Text: Sep2017
              Type: published
              Y: 2017
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              Value: 718
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            – TitleFull: Journal of Alloys & Compounds
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