The present study reports a unique tensile response of pure aluminum triggered due to the presence of SiC particles at nanolength scale. Al/SiC nanocomposites were synthesized by using energy efficient microwave assisted powder metallurgy route. Characterization studies conducted on the extruded samples revealed that the increasing presence of SiC particles at nanolength scale did not affect the 0.2% yield strength but increased ultimate tensile strength and work of fracture. Most interestingly, the presence of SiC nanoparticles increased the uniform, nonuniform, and total strain of aluminum when compared with pure aluminum. An attempt has been made in this study to inter-relate the enhanced tensile response of aluminum with the ability of SiC nanoparticles to homogenize the slip process and to delay void initiation and coalescence during tensile loading.
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October 2010
Research Papers
Enhancing Uniform, Nonuniform, and Total Failure Strain of Aluminum by Using SiC at Nanolength Scale
Sanjay Kumar Thakur,
Sanjay Kumar Thakur
Delphi Automotive Systems Singapore Pte Ltd.
, 501 Ang Mo Kio Industrial Park 1, Singapore 569621, Singapore
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Khin Sandar Tun,
Khin Sandar Tun
Department of Mechanical Engineering,
National University of Singapore
, Singapore 117576, Singapore
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Manoj Gupta
Manoj Gupta
Department of Mechanical Engineering,
National University of Singapore
, Singapore 117576, Singapore
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Sanjay Kumar Thakur
Delphi Automotive Systems Singapore Pte Ltd.
, 501 Ang Mo Kio Industrial Park 1, Singapore 569621, Singapore
Khin Sandar Tun
Department of Mechanical Engineering,
National University of Singapore
, Singapore 117576, Singapore
Manoj Gupta
Department of Mechanical Engineering,
National University of Singapore
, Singapore 117576, SingaporeJ. Eng. Mater. Technol. Oct 2010, 132(4): 041002 (6 pages)
Published Online: September 8, 2010
Article history
Received:
April 6, 2010
Revised:
June 16, 2010
Online:
September 8, 2010
Published:
September 8, 2010
Citation
Thakur, S. K., Tun, K. S., and Gupta, M. (September 8, 2010). "Enhancing Uniform, Nonuniform, and Total Failure Strain of Aluminum by Using SiC at Nanolength Scale." ASME. J. Eng. Mater. Technol. October 2010; 132(4): 041002. https://doi.org/10.1115/1.4002150
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