Influence of Nanoreinforced Particles (Al2O3) on Fatigue Life and Strength of Aluminium Based Metal Matrix Composite

Hussain J. M Alalkawi; Aseel A. Hamdany; Abbas Ahmed Alasadi

doi:10.22153/kej.2017.03.005

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Publication Date

Sat Sep 30 2017

Journal Name

Al-khwarizmi Engineering Journal

Volume

13

Issue Number

3

DOI

10.22153/kej.2017.03.005

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Influence of Nanoreinforced Particles (Al2O3) on Fatigue Life and Strength of Aluminium Based Metal Matrix Composite

Al2O3 nanoparticles

AA6061/10wt%

constant and cumulative fatigue

MMCs.

Hussain J. M Alalkawi

Aseel A. Hamdany

Abbas Ahmed Alasadi

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Abstract

In this investigation, Al₂O₃nano 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: Al₂O₃ nanoparticles, AA6061/10wt%, constant and cumulative fatigue, MMCs.

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Sun Dec 27 2020

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Wed Oct 01 2014

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In this paper we define and study new concepts of fibrewise topological spaces over B namely, fibrewise near topological spaces over B. Also, we introduce the concepts of fibrewise near closed and near open topological spaces over B; Furthermore we state and prove several Propositions concerning with these concepts.

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Thu Sep 02 2021

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Wed Jun 03 2020

Journal Name

Political Sciences Journal

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The public budget is on the same time an art and a science .As an accountable science it seeks balance between public income and public expenditure for an accountable year. And as an accountable art it seeks to achieve economic balance by distributing equitable income in order to reach sustainable development .This is the optimal use of all natural and human resources to address scarcity of natural resources facing the increase need of human resources by spending on education, health, environment, housing, agriculture and industry to achieve social justice for the current generation and future generations. Since the first budget in Iraq on 1921 an accounting budget, is balancing the sections and items has been adopted and since the publi

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