Effect of particle velocity and impact angle on the corrosion–erosion of AISI 304 and AISI 420 stainless steels

López, Diana María; Congote, J.P.; Cano, José Ricardo; Toro, A.; Tschiptschin, André Paulo

doi:10.1016/j.wear.2005.02.032

Cited by 138 publications

(60 citation statements)

References 7 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: 63%

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: 63%

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%

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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“…Unfortunately, there is no universal model that can effectively predict all erosion situations [8][9][10] and development of a reliable and effective model for solid erosion process still remains a challenge. Several attempts have been made to understand the effect of different parameters, such as; temperature, particles size, and microstructure of both the impinging and eroding surfaces on the solid particles erosion process [11][12][13][14][15][16][17]. However, each parameter behaves in a manner peculiar to each process and is often complex due to interrelated variables involved [18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Erosion Behaviour of API X100 Pipeline Steel at Various Impact Angles and Particle Speeds

Okonkwo

Shakoor

Zagho

et al. 2016

Metals

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Abstract:Erosion is the gradual removal of material due to solid particle impingement and results in a failure of pipeline materials. In this study, a series of erosion tests were carried out to investigate the influence of particle speed and impact angle on the erosion mechanism of API X100 pipeline steel. A dry erosion machine was used as the test equipment, while the particle speed ranged from 20 to 80 m/s and impact angles of 30 • and 90 • were used as test parameters. The eroded API X100 steel surface was characterized using scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). The weight loss and erosion rate were also investigated. The results showed that at a 90 • impact angle, a ploughing mechanism was occurring on the tested specimens, while material removal through low-angle cutting was the dominant mechanism at lower impact angles. Embedment of alumina particles on the target steel surface, micro-cutting, and low-angle cutting were observed at low impact angles. Therefore, the scratches, cuttings, and severe ploughings observed on some failed oil and gas pipelines could be attributed to the erosion mechanism.

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Effect of particle velocity and impact angle on the corrosion–erosion of AISI 304 and AISI 420 stainless steels

Cited by 138 publications

References 7 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

Erosion Behaviour of API X100 Pipeline Steel at Various Impact Angles and Particle Speeds

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