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Title: Characterization of boron carbide particulate reinforced in situ copper surface composites synthesized using friction stir processing

Abstract

Friction stir processing has evolved as a novel solid state technique to fabricate surface composites. The objective of this work is to apply the friction stir processing technique to fabricate boron carbide particulate reinforced copper surface composites and investigate the effect of B{sub 4}C particles and its volume fraction on microstructure and sliding wear behavior of the same. A groove was prepared on 6 mm thick copper plates and packed with B{sub 4}C particles. The dimensions of the groove was varied to result in five different volume fractions of B{sub 4}C particles (0, 6, 12, 18 and 24 vol.%). A single pass friction stir processing was done using a tool rotational speed of 1000 rpm, travel speed of 40 mm/min and an axial force of 10 kN. Metallurgical characterization of the Cu/B{sub 4}C surface composites was carried out using optical microscope and scanning electron microscope. The sliding wear behavior was evaluated using a pin-on-disk apparatus. Results indicated that the B{sub 4}C particles significantly influenced the area, dispersion, grain size, microhardness and sliding wear behavior of the Cu/B{sub 4}C surface composites. When the volume fraction of B{sub 4}C was increased, the wear mode changed from microcutting to abrasive wear and wearmore » debris was found to be finer. Highlights: • Fabrication of Cu/B{sub 4}C surface composite by friction stir processing • Analyzing the effect of B{sub 4}C particles on the properties of Cu/B4C surface composite • Increased volume fraction of B{sub 4}C particles reduced the area of surface composite. • Increased volume fraction of B{sub 4}C particles enhanced the microhardness and wear rate. • B{sub 4}C particles altered the wear mode from microcutting to abrasive.« less

Authors:
 [1];  [1];  [2];  [3]
  1. Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, 641 014 Tamil Nadu (India)
  2. Department of Mechanical Engineering, V V College of Engineering, Tisaiyanvilai, 627 657 Tamil Nadu (India)
  3. Centre for Research in Metallurgy (CRM), School of Mechanical Sciences, Karunya University, Coimbatore, 641 114 Tamil Nadu (India)
Publication Date:
OSTI Identifier:
22288662
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 84; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABRASIVES; BORON CARBIDES; COPPER; DISPERSIONS; FRICTION; GRAIN SIZE; MICROHARDNESS; OPTICAL MICROSCOPES; PARTICLES; SCANNING ELECTRON MICROSCOPY; SURFACES; WEAR

Citation Formats

Sathiskumar, R., E-mail: sathiscit2011@gmail.com, Murugan, N., E-mail: murugan@cit.edu.in, Dinaharan, I., E-mail: dinaweld2009@gmail.com, and Vijay, S.J., E-mail: vijayjoseph@karunya.edu. Characterization of boron carbide particulate reinforced in situ copper surface composites synthesized using friction stir processing. United States: N. p., 2013. Web. doi:10.1016/J.MATCHAR.2013.07.001.
Sathiskumar, R., E-mail: sathiscit2011@gmail.com, Murugan, N., E-mail: murugan@cit.edu.in, Dinaharan, I., E-mail: dinaweld2009@gmail.com, & Vijay, S.J., E-mail: vijayjoseph@karunya.edu. Characterization of boron carbide particulate reinforced in situ copper surface composites synthesized using friction stir processing. United States. doi:10.1016/J.MATCHAR.2013.07.001.
Sathiskumar, R., E-mail: sathiscit2011@gmail.com, Murugan, N., E-mail: murugan@cit.edu.in, Dinaharan, I., E-mail: dinaweld2009@gmail.com, and Vijay, S.J., E-mail: vijayjoseph@karunya.edu. Tue . "Characterization of boron carbide particulate reinforced in situ copper surface composites synthesized using friction stir processing". United States. doi:10.1016/J.MATCHAR.2013.07.001.
@article{osti_22288662,
title = {Characterization of boron carbide particulate reinforced in situ copper surface composites synthesized using friction stir processing},
author = {Sathiskumar, R., E-mail: sathiscit2011@gmail.com and Murugan, N., E-mail: murugan@cit.edu.in and Dinaharan, I., E-mail: dinaweld2009@gmail.com and Vijay, S.J., E-mail: vijayjoseph@karunya.edu},
abstractNote = {Friction stir processing has evolved as a novel solid state technique to fabricate surface composites. The objective of this work is to apply the friction stir processing technique to fabricate boron carbide particulate reinforced copper surface composites and investigate the effect of B{sub 4}C particles and its volume fraction on microstructure and sliding wear behavior of the same. A groove was prepared on 6 mm thick copper plates and packed with B{sub 4}C particles. The dimensions of the groove was varied to result in five different volume fractions of B{sub 4}C particles (0, 6, 12, 18 and 24 vol.%). A single pass friction stir processing was done using a tool rotational speed of 1000 rpm, travel speed of 40 mm/min and an axial force of 10 kN. Metallurgical characterization of the Cu/B{sub 4}C surface composites was carried out using optical microscope and scanning electron microscope. The sliding wear behavior was evaluated using a pin-on-disk apparatus. Results indicated that the B{sub 4}C particles significantly influenced the area, dispersion, grain size, microhardness and sliding wear behavior of the Cu/B{sub 4}C surface composites. When the volume fraction of B{sub 4}C was increased, the wear mode changed from microcutting to abrasive wear and wear debris was found to be finer. Highlights: • Fabrication of Cu/B{sub 4}C surface composite by friction stir processing • Analyzing the effect of B{sub 4}C particles on the properties of Cu/B4C surface composite • Increased volume fraction of B{sub 4}C particles reduced the area of surface composite. • Increased volume fraction of B{sub 4}C particles enhanced the microhardness and wear rate. • B{sub 4}C particles altered the wear mode from microcutting to abrasive.},
doi = {10.1016/J.MATCHAR.2013.07.001},
journal = {Materials Characterization},
issn = {1044-5803},
number = ,
volume = 84,
place = {United States},
year = {2013},
month = {10}
}