Impact-angle dependence and estimation of erosion damage to ceramic materials caused by solid particle impact

Oka, Y.; Mihara, S.; Yoshida, T.

doi:10.1016/j.wear.2008.12.091

Cited by 83 publications

(79 citation statements)

References 12 publications

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“…It is well known that there is a dramatic difference in the response of ductile and brittle materials when the mass loss in erosion is measured as a function of the angle of impact. As stated by other researchers [36][37][38][39][40], ductile materials exhibit a maximum in the erosion rate at intermediate impact angles (15°, Figure 2: (a), (b) Mass loss versus mass of eroding particles during solid particle erosion testing at (a) 60° and (b) 90° impact angles; (c) the extracted erosion rates for Al-VAMand Al-Co alloys 30°). In contrast, the maximum erosion rate of a brittle material is usually obtained at higher impact angle (90°).…”

Section: Resultssupporting

confidence: 62%

Solid Particle Erosion of Aluminum In-Situ Reinforced with a Cobalt Aluminide

Lekatou¹

2017

Mater. Sci. Eng. Adv. Res

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The present effort studies the comparative solid particle erosion behaviour of Al-Co alloys of various compositions in the AlAl 9 Co 2 side of the Al-Co phase diagram. The alloys have been prepared by vacuum arc melting. The main concept behind the selection of the Al-Al 9 Co 2 region of the Al-Co phase diagram was the attainment of a two-phase structure (Al + Al 9 Co 2 ) that could combine the beneficial attributes of Al 9 Co 2 , as a Complex Metallic Alloy in-situ reinforcement, with the ductility/toughness of Al, as a matrix to the brittle intermetallic.Hypereutectic Al-Co alloys of various Co contents (7, 10, 15 and 20 wt.% Co), as well as monolithic commercially pure Al, were prepared by vacuum arc melting. The alloys were subjected to solid particle erosion testing at two impact angles (60° and 90°). The test results were interpreted based on weight change measurements and scanning electronic microscopy. It was revealed that the governing mechanisms change as the impact angle and the reinforcement volume fraction change. It was shown that factors affecting the brittle/ductile character of the material, such as Al 9 Co 2 volume fraction, Al 9 Co 2 coarseness, Co dissolved in Al, play a primary role on the erosion response of the alloys. The Al-Co alloys showed higher wear rates than Al. The wear rate increased with Co and, consequently, Al 9 Co 2 increasing. The surface characteristics and degradation mechanisms are being discussed.

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Section: Resultssupporting

confidence: 62%

Solid Particle Erosion of Aluminum In-Situ Reinforced with a Cobalt Aluminide

Lekatou¹

2017

Mater. Sci. Eng. Adv. Res

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“…It can be observed that at higher impingement angles the erosion behavior of Ti6Al4V is improved significantly. As stated by other researchers [28][29][30][31][32][33][34][35], ductile materials exhibit a maximum in the erosion rate at intermediate impact angles (30°). In contrast, the maximum erosion rate of a brittle material is usually obtained at higher impact angle (90°).…”

Section: Solid Particle Erosion Behavior -Eroded Surfaces Morphologysupporting

confidence: 52%

“…Other researchers have also extensively investigated the particle velocity effect on the solid particle erosion behavior of materials [32,[36][37][38][39][40][41][42][43][44][45][46][47][48]. Figure 2(a) shows erosion rates of samples as a function of particle pressure at 30°, 60° and 90° impingement angles.…”

Section: Solid Particle Erosion Behavior -Eroded Surfaces Morphologymentioning

confidence: 99%

Effect of Solid Particle Erosion on the Aqueous Corrosion Behaviour of a Ti6Al4V Sheet

Karantzalis¹

2017

Mater. Sci. Eng. Adv. Res

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The economic and effective operation of machinery and plant involved in fluids handling is increasingly dependent on the utilization of materials that combine high corrosion resistance and good wear resistance.The present study was undertaken in order to investigate the effect of solid particle erosion on the surface characteristics, the microstructure and the aqueous corrosion behavior of a Ti6Al4V sheet metal alloy. The scope of the present effort is to examine the possible way the solid particle erosion affect, by altering the Ti6Al4V surface characteristics, the subsequent electrochemical corrosion response. As for the solid particle erosion tests, three (3) different impact angles were selected, 30°, 60° and 90° degrees respectively. Angular alumina particles of 177 -250 μm size was used as the eroding media, injected, under 1 and 2 bars pressure, on the sample surface located at 10 mm distance from the injection nozzle. The mass loss was weighted and the wear rates were calculated. Surface roughness of the eroded surfaces was assessed and the microstructural modifications were evaluated using optical microscopy and SEM-EDX.Cyclic polarization measurements were conducted in an electrolyte simulating body fluids in order to ascertain the corrosion response of the surface treated samples. SEM-EDX analysis of the corroded surfaces was used in order to assess the corrosion mechanisms and the involved phenomena and to correlate them with the surface and the overall microstructural modifications.

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“…However, in Ref. [35,36], the design of the rig has been modified to reach impact velocity in the range up to 120 m/s.…”

Section: Jet Type Apparatusmentioning

confidence: 99%

Slurry Erosion – Design of Test Devices

Buszko

Krella

2017

Advances in Materials Science

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Degradation of material caused by impacts of a solid particle (erodent) suspended in a liquid is called slurry erosion and is a major problem in the hydropower and maritime industry. Slurry erosion depends on many factors, e.g. liquid and erodent velocity, size, shape, angle of impact, hardness and number of erodents, and strength of a target material. The various types of test devices have been designed to investigate an effect of mentioned parameters on material resistance. In the paper are described main types of the test apparatus showing their main advantages and disadvantages. Some results of slurry erosion resistance of few groups of materials are also presented.

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Impact-angle dependence and estimation of erosion damage to ceramic materials caused by solid particle impact

Cited by 83 publications

References 12 publications

Solid Particle Erosion of Aluminum In-Situ Reinforced with a Cobalt Aluminide

Solid Particle Erosion of Aluminum In-Situ Reinforced with a Cobalt Aluminide

Effect of Solid Particle Erosion on the Aqueous Corrosion Behaviour of a Ti6Al4V Sheet

Slurry Erosion – Design of Test Devices

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