Effect of Nanocomposite Coating with Different Concentrations on the Fatigue Life of Stainless Steel316 with Different Surface Roughness

Hassan S. Hedia; Saad. M. Aldousari; Ahmed K. Abdellatif; Raed Hasan M. Gadhi

doi:10.3139/120.110305

Article

Effect of Nanocomposite Coating with Different Concentrations on the Fatigue Life of Stainless Steel316 with Different Surface Roughness

Hassan S. Hedia , Saad. M. Aldousari , Ahmed K. Abdellatif and Raed Hasan M. Gadhi

Published/Copyright: May 26, 2013

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From the journal Materials Testing Volume 54 Issue 2

Abstract

Many experimental researches succeeded to improve fatigue properties of materials by treating their surfaces. In this study, the benefits of nanocomposite material are used to investigate the fatigue life of stainless steel specimens with different surface roughness. Nanocomposite coating was prepared with different concentrations (0.3 %, 0.5 %, and 0.7 %) of multi wall carbon nano tubes MWCNT. This coating was applied on stainless steel test specimens with four different values of the surface roughness (0.3, 0.8, 1.6, and 2.5). It turned out that fatigue life increased more than four times compared to the original material when using 0.5 % and 0.7 % MWCNT concentration in coating composition with the 0.3 surface roughness, while no significant difference was detected at another roughness.

Kurzfassung

Viele experimentelle Forschungsarbeiten sind bisher durchgeführt worden, um die Ermüdungseigenschaften von Werkstoffen durch eine Oberflächenbehandlung zu verbessern. In der diesem Beitrag zugrunde liegenden Studie wurden die Vorteile von Nanokomposit-Materialien genutzt, um die Ermüdungsfestigkeit von Proben aus einem hochlegierten Stahl bei verschiedenen Oberflächenrauheiten zu untersuchen. Die Nanokompositbeschichtung wurde mit drei verschiedenen Konzentrationen (0,3 %, 0,5 % und 0,7 %) von mehrwandigen Carbonanotubes (Multi Wall Carbon Nano Tubes – MWCNT) präpariert. Diese Beschichtungen wurden auf die Oberfläche des Stahles bei vier verschiedenen Oberflächenrauheiten (0,3, 0,8, 1,6 und 2,5) aufgebracht. Es stellte sich heraus, dass sich gegenüber dem ursprünglichen Werkstoff die Ermüdungsfestigkeit vierfach erhöhen lässt, wenn eine Konzentration von 0,5 und 0,7 MWCNT in der Beschichtungszusammensetzung bei einer Oberflächenrauheit von 0,3 verwendet wird, während sich keine signifikanten Veränderungen für andere Rauheiten einstellten.

Professor Dr. Hassan S. Hedia is a professor of materials and solid mechanics. He is working in King Abdulaziz University (KAU), KSA. He was born in Egypt in 1959. BSc in 1981 mechanical Engineering Dept., Cairo University, Egypt. MSc 1989 Production Engineering, Mansoura University, Egypt. PhD 1996 mechanical Engineering Dept., Leeds University, UK and Mansoura university, Egypt under channel system. His field of interest is advanced materials, fracture mecha-nics, Stress analysis and biomechanics.

Dr. S. M. Aldousari is an assistant professor at King Abdulaziz University (KAU), KSA. He was born in KSA in 1956. BSc in 1980 mechanical Engineering Dept., Collage of Engineering, King Abdulaziz University, KSA. PhD and MSc in 1993 from Bradford University, United Kingdom. His field of interest is manufacturing technology.

Professor Ahmed K. Abdellatif is a Professor of Machine Design, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia. He was born in Egypt 1939. Ph.D., UMIST, Manchester, UK, 1967, M.sc., UMIST, Manchester, UK, 1965, B.sc, Mech. Eng. Dep., Cairo University, Egypt, 1962. His Research field is fatigue and Fracture Mechanics, Stress Analysis of bolted and welded joints, Residual stresses and its relief

Raed Hasan M. Gadhi, Year of Birth: 1975, Bsc degree from Production Engineering and Mechanical Systems Design, King Abdul Aziz University 2003, MSc degree from Production Engineering and Mechanical Systems Design), King Abdul Aziz University 2011, Working as sr.generation engineer, GTS Department, Saudi Electricity Company, Western Region, Jeddah HQ. P.O. Box 2405, Taif 21944, Kingdom of Saudi Arabia (personal code).

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Published Online: 2013-05-26

Published in Print: 2012-02-01

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https://doi.org/10.3139/120.110305