Analysis of fracture mechanism for al-Mg/SiCp composite materials

Maleque, Md. Abdul and Adebisi, Adetayo Abdulmumin and Zainal, Nur Izzati (2017) Analysis of fracture mechanism for al-Mg/SiCp composite materials. IOP Conference Series: Materials Science and Engineering, 184. 012031-1. ISSN 1757-8981 E-ISSN 1757-899X

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Abstract

The present study aims to examine the fracture mechnism of silicon carbide particle (SiCp) reinforced aluminium matrix composite (AMC) material with 1 wt% addition of magnesium is fabricated using the stir casting process. The aluminium composite (Al-Mg/SiCp) is investigated for fatigue life and impact strength considering reinforcement weight fraction and influence of temperature on fracture toughness. The fabricated composite was tested using fatigue testing machine and charpy impact tester. Fractographic observations were evaluated with the scanning electron microscopy (SEM) on the fracture surface. It was found that increasing the SiCp weight fraction increased the fatigue life of the composite. Moreover, the 20 wt% SiCp Al-Mg composite attained the highest number of cycle and fatigue life compared to other variations. The mechanism responsible for the phenomena includes load transfer from the Al matrix alloy phase to the high strength and stiffness of the incorporated SiCp. The temperature variation influenced the impact strength of the composite and improved fracture toughness is achieved at 150 °C. It can be concluded from this study that reinforcement weight fraction and temperature affects the fracture behavior of the composites.

Item Type:	Article (Journal)
Additional Information:	6103/56667
Uncontrolled Keywords:	Fracture Mechanism for Al-Mg/SiCp
Subjects:	T Technology > T Technology (General) > T173.2 Technological change T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy T Technology > TP Chemical technology > TP200 Manufacture and use of chemicals
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	09 May 2017 11:41
Last Modified:	04 Jan 2018 17:44
URI:	http://irep.iium.edu.my/id/eprint/56667

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