A Simple Model to Estimate the Yield Strength of Silicon Carbide Particulate Reinforced Aluminium Alloy Matrix Composites

J Mater Sci Technol ›› 2002, Vol. 18 ›› Issue (03): 193-194.

• Research Articles • Next Articles

A Simple Model to Estimate the Yield Strength of Silicon Carbide Particulate Reinforced Aluminium Alloy Matrix Composites

Mingjiu ZHAO, Lijuan ZHU, Yue LIU, Jing BI

Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China...

Received:1900-01-01 Revised:1900-01-01 Online:2002-05-28 Published:2009-10-10
Contact: Mingjiu ZHAO

Abstract

Abstract: In the present study, a modified Hall-Petch correlation on the basis of dislocation pile-up model was used to estimate the yield strength of SiCp/Al composites. The experimental results show that the modified Hall-Petch correlation expressed as scy=244+371l-1/2 fits very well with the experimental data, which indicated that the strength increase of SiCp/Al composites might be due to the direct blocking of dislocation motion by the particulate-matrix interface, namely, the dislocation pile-up is the most possible strengthening mechanism for SiCp/Al composites.

Key words: SiCp/Al composite, Hall-Petch correlation, Dislocation, Yield strength

Mingjiu ZHAO, Lijuan ZHU, Yue LIU, Jing BI. A Simple Model to Estimate the Yield Strength of Silicon Carbide Particulate Reinforced Aluminium Alloy Matrix Composites[J]. J Mater Sci Technol, 2002, 18(03): 193-194.

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A Simple Model to Estimate the Yield Strength of Silicon Carbide Particulate Reinforced Aluminium Alloy Matrix Composites

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