Abrasive wear of epoxy composites filled by abrasive particles and reinforced by polyamide fibres. Issue 2 (February 2014)

• Record Type: Journal Article
• Authors: Mohamed, M. K.; Abdel‐Jaber, G. T.; Ali, W. Y.
• Is Part Of: Materialwissenschaft und Werkstofftechnik. Volume 45:Issue 2(2014:Feb.)
• Page Start: 123
• Page End: 129
• Publication Date: 2014-02
• Subjects: Materials -- Periodicals; Materials -- Testing -- Periodicals; 620.1
• DOI: 10.1002/mawe.201400193
• Languages: English
• ISSNs: 0933-5137

Abstract

<abstract abstract-type="main" xml:lang="en" id="mawe201400193-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p xml:lang="en">Abrasive wear caused by sandy soil of steel coated by epoxy resin was investigated. Experiments were carried out using an abrasive wear tester developed to simulate the wear of the tillage tools under controlled testing conditions. Epoxy coatings were filled by abrasive particles such as aluminium oxide, silicon carbide and silicon oxide of different particle size. Also, epoxy coatings were reinforced by polyamide fibres of different diameters.</p> <p xml:lang="de">The test results showed that, relatively lower wear values were displayed by epoxy coatings filled by silicon oxide particles of 5 wt% content. The wear values performed by silicon oxide of (10–20) μm particle size were lower than that displayed by uncoated steel surface. Solid lubricant such as graphite and molybdenum disulphide as filling material caused significant increase in wear due to the weak adhesion between epoxy/solid lubricant layers. Wear of epoxy reinforced by polyamide fibres showed the minimum wear values. Orientation of fibres much affected wear. Parallel fibres represented higher wear than perpendicular ones. The minimum wear was observed for cross plied coatings where shorter wear tracks and higher tensile strength in both perpendicular and parallel directions were existed. The minimum wear values which were lower than that displayed by uncoated steel test specimens were displayed by 0.1 and 0.3 mm polyamide fibre diameters. This observation confirmed the application of the polyamide fibres as reinforcement in epoxy coatings.</p> </abstract>