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Further investigation of particle reinforced aluminum matrix composites by indentation experiments

Published online by Cambridge University Press:  14 February 2014

Zhanwei Yuan*
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China; and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
Fuguo Li*
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China; and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
Bo Chen
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China; and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
Fengmei Xue
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China; and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
Mirza Zahid Hussain
Affiliation:
School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

In this paper, a modeling method was introduced for SiC particle reinforced aluminum matrix composite. Micro-indentation technique was used to study the micro properties of both SiC particles and aluminum matrix with Micro-Compression-Tester. Mechanical properties like Young's modulus and hardness were calculated using Oliver and Pharr method. After repeated experiments, the average Young's modulus and the hardness of matrix and particle were calculated as 76.8 and 334.7 GPa, 1.58 and 32.56 GPa, respectively. During the indentation experiments on particle, the phenomenon of particle acting as “second indenter” was detected from the recorded Ph curves. Besides, the material elastic–plastic properties of matrix were analyzed using inverse method. Based on the micro material properties from indentation, the indentation processing of particle as second indenter has been simulated. Also, the simulation model at micro scale has been established by using such material properties for further investigation.

Type
Articles
Copyright
Copyright © Materials Research Society 2014 

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References

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