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Influence of Nanoreinforced Particles (Al2O3) on Fatigue Life and Strength of Aluminium Based Metal Matrix Composite | ||
| Al-Khwarizmi Engineering Journal | ||
| Article 1, Volume 13, Issue 3, 2017, Pages 91-98 | ||
| Authors | ||
| Alalkawi Hussain J. M. alalkawi; ; Aseel A. Hamdany; Abbas Ahmed Alasadi | ||
| Abstract | ||
| In this investigation, Al2O3 nano material of 50nm particles size were added to the 6061 Al aluminium alloy by using the stir casting technique to fabricate the nanocomposite of 10wt% Al2O3. The experimental results observed that the addition of 10wt% Al2O3 improved the fatigue life and strength of constant and cumulative fatigue. Comparison between the S-N curves behaviour of metal matrix (AA6061) and the nanocomposite 10wt% Al2O3 has been made. The comparison revealed that 12.8% enhancement in fatigue strength at 107cycles due to 10wt% nano reinforcement. Also cumulative fatigue life of 10wt% nanocomposite was found to be increased by 33.37% and 39.58% for low-high and high-low loading sequences, respectively, compared to the metal-matrix cumulative life. | ||
| Keywords | ||
| nanoparticles; constant and cumulative fatigue; MMCs | ||
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