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Corrosion of surface modified AISI 4340 steel in jatropha biodiesel

Maleque, Md. Abdul and Belal, Ahmed Ghazal and Ali, Mohammad Yeakub and Al-razzouk, Maan Hayyan and Ahmed, Abu Saleh (2015) Corrosion of surface modified AISI 4340 steel in jatropha biodiesel. Advanced Materials Research, 1115. pp. 243-246. ISSN 1022-6680

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The aim of this paper is to study the effect of jatropha curcas biodiesel on the corrosion behavior of surface modified low alloy steel after modification by TIG torch surface melting technique. The coating layer was produced by preplacement of 1 mg/mm2 TiC particulate into the surface of AISI 4340 steel and at heat input of 1344 J/mm using an electric arc generated from the tungsten electrode that melt the powder with substrate material to form a composite layer. The micrograph of the composite coated surface modified steel showed formation of TiC dendrites that densely populated at the of the melt pool which contributes to the high hardness value. The corrosion behavior of the composite coated steel was studied using tafel extrapolation method in biodiesel environment. The surface micrograph after corrosion test shows pitting corrosion holes as a dominant corrosion phenomenon for AISI 4340 steel. The tafel curve showed reduction of corrosion current density of the surface modified steel compared to the alloy street substrate.

Item Type: Article (Journal)
Additional Information: 6103/42912
Uncontrolled Keywords: Composite coating; TiC; TIG torch; Jatropha curcas biodiesel ; corrosive-wear.
Subjects: 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 > TP315 Fuel
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: 19 May 2015 10:38
Last Modified: 01 Feb 2017 17:06
URI: http://irep.iium.edu.my/id/eprint/42912

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