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Optimization of powder metallurgy parameters to attain maximum strength coefficient in Al–10 wt% MoO3 composite

Published online by Cambridge University Press:  04 August 2015

Manickam Ravichandran  and
Veeramani Anandakrishnan
Manickam Ravichandran*
Affiliation:
Department of Mechanical Engineering, Kings College of Engineering, Pudukkottai-613 303, Tamilnadu, India
Veeramani Anandakrishnan
Affiliation:
Department of Production Engineering, National Institute of Technology, Tiruchirappalli-620 015, Tamilnadu, India
*
a)Address all correspondence to this author. e-mail: smravichandran@hotmail.com
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Abstract

Aluminum matrix composite with 10 wt% of MoO3 particulate reinforcement was synthesized through powder metallurgy technique. The cold upsetting studies of the composites were investigated based on Taguchi L9 orthogonal array experimental design to evaluate the significance of compaction pressure, sintering temperature, and sintering time on strength coefficient. The combination of 350 MPa pressure, 600 °C temperature, and 90 minutes sintering time was identified as the optimum blend for maximum strength coefficient using the main effect plot. From the analysis of variance, compaction pressure and sintering temperature were identified as highly contributing parameters on strength coefficient. Further, a confirmation test was also conducted with the optimum parameter for validation of the Taguchi results. X-ray diffraction and scanning electron microscopy were used to confirm the presence of MoO3 and its uniform distribution over the aluminum matrix.

Keywords

metal matrix compositescold upsettingTaguchipowder metallurgystrength coefficient
Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 15 , 14 August 2015 , pp. 2380 - 2387
Copyright
Copyright © Materials Research Society 2015 

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References

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