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Solid particle erosion of a composite material of polyetheretherketone (PEEK) matrix and unidirectional (AS4) carbon fiber was investigated experimentally. Erosion tests were conducted with 10μm Arizona road dust and 100μm sieved runway sand particles in especially designed erosion tunnel at temperature up to 260°C (500°F) and impact velocities up to 152.4m/s (500ft/s). Experimental results are presented...
Visual erosion examples based on that occurred in the minerals and oil and gas industries are illustrated by a paint modeling technique. The visual paint patterns were used to illustrate erosion damage “hot spots”. This provided an insight into the underlining fluid dynamics process involved with erosion damages. This insight allows design changes to be made to reduce erosion, illustrated by examples...
Particle embedding can be an unwanted consequence of abrasive jet micromachining (AJM) of polymeric materials. The embedding of aluminum oxide particles into acrylonitrile butadiene styrene (ABS), polytetrafluoroethylene (PTFE), polydimethylsiloxane (PMDS) and polymethylmethacrylate (PMMA) was studied under cryogenic and room temperature conditions. Scanning electron microscopy (SEM) with energy dispersive...
The erosive wear of borosilicate glass edges by the unidirectional low velocity impacts of abrasive balls was investigated. Glass edges were chamfered with included angles of 120° and 135° to eliminate macro-scale edge chipping, and as a result wear appeared as a narrow band along the edge. The rate of wear decreased during an initial transition stage to a steady-state wear rate. Fundamental differences...
The present paper deals with damage mechanisms in soda-lime glass subjected to particle impacts. Sandblasting experiments on glass using small-sized particles were performed and resulting damaged sites were analyzed by means of a 3D optical profilometer. A particular attention is paid to determine the different morphologies of imprints and cracks with regard to particle size and impact velocity. The...
Acid-eroded human tooth enamel is more susceptible to abrasion and attrition than intact enamel. Previous studies suggested that remineralization may be a useful way to improve the mechanical properties of acid-eroded enamel. The objective of our study was to investigate the effect of remineralization on the nanomechanical properties and microtribological behaviour of acid-eroded human tooth enamel...
Removal of material by the action of impinging particles is known as erosion. Based on the understanding of the material removal mechanisms in ductile materials, in normal impact, material removal occurs predominantly by deformation whereas in oblique impacts, material is removed through a combination of cutting and deformation. Although material can be removed in cutting by a single impact, material...
WC/Ni-based plasma transfer arc welded (PTAW) overlays are frequently used in the oil sands industry for applications requiring extremely high wear resistance.These overlays usually consist of a dense distribution of either tungsten monocarbide (WC) or cast tungsten carbides (WC/W 2 C) in a NiBSi or NiCrBSi matrix.A previous erosion–corrosion (E–C) study of cast tungsten carbide/NiBSi-based...
The main objective of the present study is assessment of erosive and abrasive wear performance of newly developed WC-based and 3mol% yttria stabilized tetragonal zirconia doped cermets with nickel and cobalt binder metal exploiting the mechanism of stress induced transformation of tetragonal zirconia into the monoclinic polymorph. The newly developed cermets possess both outstanding indentation fracture...
This study investigated the high temperature erosion characteristics of two types of surface-treated SUS410 steels; overlay welding and forging of the base metal. Two-layer overlay welding of 6mm and forging with a 10% reduction, were used on a base metal of SUS410, to prepare specimens. High temperature solid particle erosion tests using a test temperature of 1173K were performed using 1mm alumina...
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