Microstructure and sliding wear characterization of Cu/TiB                         2                          copper matrix composites fabricated via friction stir processing

I. Dinaharan; S. Saravanakumar; K. Kalaiselvan; S. Gopalakrishnan

doi:10.1016/j.jascer.2017.06.002

Microstructure and sliding wear characterization of Cu/TiB ₂ copper matrix composites fabricated via friction stir processing

I. Dinaharan, S. Saravanakumar, K. Kalaiselvan, S. Gopalakrishnan

Mechanical Engineering Science

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

The poor wear performance of copper is improved by reinforcing hard ceramic particles. The present work reports the fabrication of Cu/TiB ₂ (0, 6, 12, 18 vol.%) copper matrix composites (CMCs) using friction stir processing (FSP). TiB ₂ particles were initially packed together into a machined groove and were subjected to FSP under a constant set of process parameters. The microstructure was observed using optical, scanning and transmission electron microscopy. The wear behavior was examined using a pin-on-disc apparatus. The micrographs showed a homogeneous distribution of TiB ₂ particles without aggregation and segregation. The distribution of TiB ₂ particles was closely persistent across the stir zone. TiB ₂ particles were well bonded with the copper matrix without any interfacial reaction. Many TiB ₂ particles fractured during FSP. The grains in the composite were extensively refined because of dynamic recrystallization and pinning effect of TiB ₂ particles. The wear behavior under dry sliding condition was presented in detail.

Original language	English
Pages (from-to)	295-303
Number of pages	9
Journal	Journal of Asian Ceramic Societies
Volume	5
Issue number	3
DOIs	https://doi.org/10.1016/j.jascer.2017.06.002
Publication status	Published - Sept 2017

Keywords

Copper matrix composites
Friction stir processing
Microstructure
Wear

ASJC Scopus subject areas

Ceramics and Composites

Access to Document

10.1016/j.jascer.2017.06.002

Cite this

Dinaharan, I., Saravanakumar, S., Kalaiselvan, K., & Gopalakrishnan, S. (2017). Microstructure and sliding wear characterization of Cu/TiB ₂ copper matrix composites fabricated via friction stir processing Journal of Asian Ceramic Societies, 5(3), 295-303. https://doi.org/10.1016/j.jascer.2017.06.002

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title = " Microstructure and sliding wear characterization of Cu/TiB 2 copper matrix composites fabricated via friction stir processing ",

abstract = " The poor wear performance of copper is improved by reinforcing hard ceramic particles. The present work reports the fabrication of Cu/TiB 2 (0, 6, 12, 18 vol.%) copper matrix composites (CMCs) using friction stir processing (FSP). TiB 2 particles were initially packed together into a machined groove and were subjected to FSP under a constant set of process parameters. The microstructure was observed using optical, scanning and transmission electron microscopy. The wear behavior was examined using a pin-on-disc apparatus. The micrographs showed a homogeneous distribution of TiB 2 particles without aggregation and segregation. The distribution of TiB 2 particles was closely persistent across the stir zone. TiB 2 particles were well bonded with the copper matrix without any interfacial reaction. Many TiB 2 particles fractured during FSP. The grains in the composite were extensively refined because of dynamic recrystallization and pinning effect of TiB 2 particles. The wear behavior under dry sliding condition was presented in detail.",

keywords = "Copper matrix composites, Friction stir processing, Microstructure, Wear",

author = "I. Dinaharan and S. Saravanakumar and K. Kalaiselvan and S. Gopalakrishnan",

note = "Publisher Copyright: {\textcopyright} 2017 The Ceramic Society of Japan and the Korean Ceramic Society",

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Dinaharan, I, Saravanakumar, S, Kalaiselvan, K & Gopalakrishnan, S 2017, ' Microstructure and sliding wear characterization of Cu/TiB ₂ copper matrix composites fabricated via friction stir processing ', Journal of Asian Ceramic Societies, vol. 5, no. 3, pp. 295-303. https://doi.org/10.1016/j.jascer.2017.06.002

Microstructure and sliding wear characterization of Cu/TiB ₂ copper matrix composites fabricated via friction stir processing . / Dinaharan, I.; Saravanakumar, S.; Kalaiselvan, K. et al.
In: Journal of Asian Ceramic Societies, Vol. 5, No. 3, 09.2017, p. 295-303.

Research output: Contribution to journal › Article › peer-review

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AU - Dinaharan, I.

AU - Saravanakumar, S.

AU - Kalaiselvan, K.

AU - Gopalakrishnan, S.

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N2 - The poor wear performance of copper is improved by reinforcing hard ceramic particles. The present work reports the fabrication of Cu/TiB 2 (0, 6, 12, 18 vol.%) copper matrix composites (CMCs) using friction stir processing (FSP). TiB 2 particles were initially packed together into a machined groove and were subjected to FSP under a constant set of process parameters. The microstructure was observed using optical, scanning and transmission electron microscopy. The wear behavior was examined using a pin-on-disc apparatus. The micrographs showed a homogeneous distribution of TiB 2 particles without aggregation and segregation. The distribution of TiB 2 particles was closely persistent across the stir zone. TiB 2 particles were well bonded with the copper matrix without any interfacial reaction. Many TiB 2 particles fractured during FSP. The grains in the composite were extensively refined because of dynamic recrystallization and pinning effect of TiB 2 particles. The wear behavior under dry sliding condition was presented in detail.

AB - The poor wear performance of copper is improved by reinforcing hard ceramic particles. The present work reports the fabrication of Cu/TiB 2 (0, 6, 12, 18 vol.%) copper matrix composites (CMCs) using friction stir processing (FSP). TiB 2 particles were initially packed together into a machined groove and were subjected to FSP under a constant set of process parameters. The microstructure was observed using optical, scanning and transmission electron microscopy. The wear behavior was examined using a pin-on-disc apparatus. The micrographs showed a homogeneous distribution of TiB 2 particles without aggregation and segregation. The distribution of TiB 2 particles was closely persistent across the stir zone. TiB 2 particles were well bonded with the copper matrix without any interfacial reaction. Many TiB 2 particles fractured during FSP. The grains in the composite were extensively refined because of dynamic recrystallization and pinning effect of TiB 2 particles. The wear behavior under dry sliding condition was presented in detail.

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Dinaharan I, Saravanakumar S, Kalaiselvan K, Gopalakrishnan S. Microstructure and sliding wear characterization of Cu/TiB ₂ copper matrix composites fabricated via friction stir processing Journal of Asian Ceramic Societies. 2017 Sept;5(3):295-303. doi: 10.1016/j.jascer.2017.06.002