Investigation of the microhardness and solid particle erosive wear of organoclay-filled glass-epoxy nanocomposites and optimisation using Taguchi method

2018 ◽  
Vol 18 (3) ◽  
pp. 364-374
Author(s):  
Z. Shanti Kiran ◽  
V. Babu ◽  
K. Srinadh
Keyword(s):  
Taguchi Method ◽  
Solid Particle ◽  
Erosive Wear ◽  
Epoxy Nanocomposites

Investigation of erosive wear behaviors of AA6082-T6 aluminum alloy

2020 ◽  
Vol 234 (3) ◽  
pp. 520-530
Author(s):  
Aygen A Erdoğan ◽  
Erol Feyzullahoğlu ◽  
Sinan Fidan ◽  
Tamer Sinmazçelik
Keyword(s):  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Solid Particle ◽  
Erosive Wear ◽  
Solid Particles ◽  
Surface Erosion ◽  
Crater Morphology ◽  
Impact Angles ◽  
Wear Tests ◽  
Erodent Particle

AA6082-T6 aluminum alloys are widely used in various applications in automotive and aircraft industries. They offer an attractive combination of surface properties, strength and corrosion resistance. The structural components manufactured by AA6082-T6 aluminum alloys can be exposed to impingement of solid particles throughout their service life. In this study, erosive wear behaviors of AA6082-T6 aluminum alloy were investigated. For the evaluation of erosive wear induced by solid particle impacts, a detailed study was conducted on AA6082-T6 aluminum alloy by using aluminum oxide (Al2O3) erodent particles. Two different particles were used in solid particle erosion tests, which are 60 mesh (212–300 µm) and 120 mesh (90–125 µm), respectively. Also, the aluminum alloy samples were tested under two different air pressures (1.5 bar and 3 bar). The erosive wear tests were carried out according to ASTM G76 standard at six various impact angles (15°, 30°, 45°, 60°, 75°, 90°). The surface roughness and morphology of worn samples were analyzed by using a non-contact laser profilometer. It was found that erodent particle size affected the surface erosion damage, erosion rate, crater morphology and roughness. The eroded surfaces of specimens were analyzed by SEM. The surfaces of specimens were also investigated by using EDS in SEM studies.

The effect of nanoclay particles on the incubation period in solid particle erosion of glass fibre/epoxy nanocomposites

Wear ◽  
2020 ◽  
Vol 444-445 ◽  
pp. 203159 ◽  
Author(s):  
Mehmet Bagci ◽  
Musa Demirci ◽  
Emine Feyza Sukur ◽  
Halil Burak Kaybal
Keyword(s):  
Incubation Period ◽  
Solid Particle ◽  
Glass Fibre ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Epoxy Nanocomposites

Erosive Wear Assesment of Glass Reinforced Polyester-Flyash Composites Using Taguchi Method

2008 ◽  
Vol 23 (2) ◽  
pp. 192-199 ◽  
Author(s):  
A. Patnaik ◽  
A. Satapathy ◽  
S. S. Mahapatra ◽  
R. R. Dash
Keyword(s):  
Taguchi Method ◽  
Erosive Wear

Solid particle erosive wear behaviour of Eulaliopsis binata fiber reinforced epoxy composite

2020 ◽  
pp. 135065012093164
Author(s):  
Subhrajit Pradhan ◽  
Samir K Acharya
Keyword(s):  
Solid Particle ◽  
Natural Fiber ◽  
Erosive Wear ◽  
Weight Percent ◽  
Polymer Composite Material ◽  
Neat Epoxy ◽  
Wear Behaviour ◽  
Erosion Behavior ◽  
Eulaliopsis Binata ◽  
The Impact

In the present work, Eulaliopsis binata, a natural fiber collected from the eastern part of India is taken as a reinforcement with epoxy resin to develop a new class of polymer composite material, which has been unexplored till date for tribological applications in the composite industry. Different characterization studies of the fiber such as SEM, EDS, XRD are carried out to astern its potential to be used as a fiber in composite. Short Eulaliopsis binata fiber of different weight percent (10, 20, 30, and 40) is incorporated in neat epoxy and polymer composites are fabricated using the hand lay-up method. Solid particle erosion behavior of the fabricated composites is studied with four different impact velocities (48, 72, 82, 116 m/s) and impinging angles (30°, 45°, 60°, 90°). Improved erosion wear resistance is exhibited by the composites after the addition of Eulaliopsis binata fiber to neat epoxy. In addition, the inclusion of fiber altered the erosion behavior of neat epoxy from brittle to semi ductile nature. The impact velocity of the erodent particles also shows significant effect on the erosion behavior of the developed composites. The eroded surfaces of the worn samples are analyzed with SEM to ascertain the failure mechanism of the developed composites.

Solid Particle Erosion of Thermal Sprayed Coatings

2015 ◽  
pp. 193-226 ◽  
Author(s):  
S. G. Sapate ◽  
Manish Roy
Keyword(s):  
Solid Particle ◽  
Erosion Rate ◽  
Erosive Wear ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Recent Developments ◽  
Future Direction ◽  
Sprayed Coating ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

Solid particle erosion is an important material degradation mechanism. Although various methods of coating are tried and used for protection against erosion, thermal sprayed coating for such purpose is the most widely used method. In this chapter, evolution of thermal sprayed coating, erosion testing methods, and erosive wear of thermal sprayed coatings are discussed extensively with emphasis on recent developments. It is generally found that erosion of thermal sprayed coatings depends on erosion test conditions, microstructural features, and mechanical properties of the coating materials. Most thermal sprayed coatings respond in brittle manner having maximum erosion rate at oblique impact and velocity exponent in excess of 3.0. Erosion rate is also dependent on thermal spraying techniques and post coating treatment. However, little work is done on dependence of erosion rate on coating techniques and coating conditions. Future direction of work is also reported.

Measurement of solid particle velocity in erosive wear

Wear ◽  
1975 ◽  
Vol 35 (1) ◽  
pp. 195-199 ◽  
Author(s):  
A.W. Ruff ◽  
L.K. Ives
Keyword(s):  
Solid Particle ◽  
Particle Velocity ◽  
Erosive Wear

Solid Particle Erosion of Particulate Filled Short Glass Fiber Reinforced Polyester Resin Composites

2010 ◽  
Vol 123-125 ◽  
pp. 213-216 ◽  
Author(s):  
Amar Patnaik ◽  
Ritesh Kaundal ◽  
Alok Satapathy ◽  
Sandhyarani Biswas ◽  
Pradeep Kumar
Keyword(s):  
Glass Fiber ◽  
Solid Particle ◽  
Erosion Resistance ◽  
Erosive Wear ◽  
Solid Particle Erosion ◽  
Fiber Reinforced ◽  
Particle Erosion ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
Short Glass

Fiber reinforced composite materials have been used in main parts of structures; an accurate evaluation of their erosion behavior becomes very important. In this study, short glass fibre reinforced polyester based isotropic polymer composites are fabricated with five different fibre weight-fractions. The effect of various operational variables, material parameters and their interactive influences on erosive wear behavior of these composites has been studied systematically. After systematic analysis of solid particle erosion for all the five composites, 30wt% short glass fiber reinforced polyester based composite shows better erosion resistance. In order to improve the erosion resistance further ceramic silicon carbide particle is reinforced with the 30wt% glass-polyester based hybrid composites. A finite element (FE) model (LS-DYNA) of erosive wear is established for damage assessment and validated by a well designed set of experiments. For this, the design of experiments approach using Taguchi’s orthogonal arrays design is used. It is recognized that there is a good agreement between the computational and experimental results, and that the proposed simulation method is very useful for the evaluation of damage mechanisms.

Effect of welding conditions on erosive wear of hard-faced Co-based alloy layer

2018 ◽  
Vol 232 (11) ◽  
pp. 1377-1389 ◽  
Author(s):  
Begori Venkatesh ◽  
Bharti Malvi ◽  
Manish Roy ◽  
Pallab Sarkar
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Solid Particle ◽  
Steel Substrate ◽  
Erosive Wear ◽  
Ductile Material ◽  
Material Loss ◽  
Air Jet ◽  
The Impact ◽  
Scanning Electron

Degradation of materials due to the impact of solid particle is a major material wastage process. Modifying the surface of materials can be considered to be a potential method of improving the resistance to erosion. In the present days, weld hard-facing is a popular surface modification process. Engineering industries are opting for hard-facing because of its low capital cost, low operational cost, and operational simplicity. In the context of erosion-resistant hard materials, a series of Co-based alloys that can be deposited by hard-facing is one of the most suitable materials. The present analysis has been carried out to evaluate the influence of processing conditions of hard-faced Co-based alloyed layer on solid particle erosion response at ambient temperature. These layers were deposited on mild steel substrate by weld hard-facing. The mechanical properties and microstructural features of these coatings were evaluated by means of X-ray diffraction technique, optical microscopy, scanning electron microscopy, and microhardness tester. Erosion rate was measured using an air jet erosion test rig. The eroded surface morphology and the transverse section of eroded surfaces were viewed using scanning electron microscopy. The results showed that hard-facing improves erosion resistance of the substrate. The erosion responses of most of the coatings were ductile. Material loss from hard-faced coating was by formation of lips followed by their fracture which initiated in the interdendritic regions.

scholarly journals Solid Particle Erosion of Knitted Glass Fabric-Reinforced Poly(Ethylene Terephthalate) Composites

1999 ◽  
Vol 8 (2) ◽  
pp. 096369359900800 ◽  
Author(s):  
E. Moos ◽  
J. Karger-Kocsis
Keyword(s):  
Wear Rate ◽  
Solid Particle ◽  
Ethylene Terephthalate ◽  
Erosive Wear ◽  
Ductile Deformation ◽  
Wear Behaviour ◽  
Erosion Wear ◽  
Wear Rates ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

The erosion behaviour of knitted fabric-reinforced glass fibre (GF)/poly(ethylene terephthalate) (PET)-composites was investigated by solid particle impact with irregularly shaped corundum particles. Angular (30° to 90°) and morphological (matrix crystallinity) dependencies of the wear rate were studied. The specific erosion wear rate was recorded and scanning electron microscopy (SEM) investigations have been performed to describe the wear mechanisms. In general, high erosive wear rates were detected. A maximum erosion rate was found at impacting angles of 60° for all investigated composites. At normal impact (90°) lower wear rates were observed which depended also on the matrix crystallinity. The erosion wear rate increased with increasing crystallinity, knit stretching and annealing (crystallinity change by cold crystallisation). No influence was found for the erosion direction when tests were performed in wale (WD) and course (CD) direction of the knit, respectively. SEM micrographs supported the semi-brittle wear behaviour showing brittle fracture of the glass fibres and the ductile deformation of the PET matrix.

SOLID PARTICLE EROSIVE WEAR BEHAVIOR OF Sol–Gel-DERIVED AA2024 THERMAL BARRIER COATINGS

2020 ◽  
pp. 2050051
Author(s):  
DIPAK KUMAR ◽  
K. N. PANDEY
Keyword(s):  
Solid Particle ◽  
Impact Velocity ◽  
Thermal Barrier Coatings ◽  
Flow Rate ◽  
Wear Behavior ◽  
Sol Gel ◽  
Erosive Wear ◽  
Impact Angle ◽  
Thermal Barrier ◽  
Barrier Coatings

Solid particle erosion behavior of non-conventional thermal barrier coatings prepared by dip coating of sol–gel 7[Formula: see text]wt.% yttria-stabilized zirconia (7YSZ) has been studied in the present paper. The purpose was to show its applicability to protect aeronautic bodies vulnerable under solid particle impact, e.g. the leading edges of the wings, the radome or the leading edges of rotor blades. The effect of operational variables on erosion rate is studied both for uncoated AA2024-T351 substrate and sol–gel-derived 7YSZ top-coat on AA2024-T351 substrate. The interactive influence of variables on erosive wear behavior is also systematically studied using an air-jet erosion tester under four different parameters such as temperature (25, 150, 275 and [Formula: see text]C), impact angle ([Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text]), impact particle velocity (40, 60, 80 and 100[Formula: see text]m/s) and erodent flow rate (2, 3, 4 and 5[Formula: see text]g/min) using L[Formula: see text] Taguchi design of experiments. The optimal experimental parameters were obtained by orthogonal arrays, signal-to-noise ratio (SNR) and analysis of variance (ANOVA) for uncoated and coated aluminum alloys AA2024-T351. The temperature was found to be the most influencing parameter followed by impact angle, impact velocity and erodent flow rate for uncoated samples. For 7YSZ sol–gel coated samples, temperature was the most influencing parameter followed by impact angle, erodent flow rate and impact velocity.

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