Cavitation erosion of martensitic and austenitic stainless steel welded coatings

Santa, Juan Felipe; Blanco, J.A.; Giraldo, J.; Toro, A.

doi:10.1016/j.wear.2010.12.081

Cited by 89 publications

(38 citation statements)

References 9 publications

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“…Welding is often used to repair cavitation erosion damage. The affected area is first removed then welded with martensitic stainless steel fillers [12]. However, surface preparation of the eroded (hydraulic) profiles after welding is time-consuming.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of cavitation-induced erosion in thermal sprayed single splats

Wang

Lebon

Tzanakis

et al. 2019

Ultrasonics Sonochemistry

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Hydraulic components are coated by thermal spraying to protect them against cavitation erosion. These coatings are built up by successive deposition of single splats. The behavior of a single splat under mechanical loading is still very vaguely understood. Yttria-stabilized zirconia (YSZ) and stainless-steel splats were obtained by plasma spraying onto stainless steel substrates. The velocity and temperature of particles upon impact were measured and the samples were subsequently exposed to cavitation erosion tests. An acoustic cavitation simulation estimated the water jet velocity and hammer stresses exerted by bubble collapse on the surface of the specimen. Although the results suggested that high stress levels resulted from cavitation loading, it was clear that weak adhesion interfaces played a crucial role in the accelerated cavitation-induced degradation.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of cavitation-induced erosion in thermal sprayed single splats

Wang

Lebon

Tzanakis

et al. 2019

Ultrasonics Sonochemistry

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“…These alloys accommodate the impact of shock waves creating stacking faults and extending the incubation period [8][9][10]14,15 . In other metallic alloys, strain hardening during cavitation also plays an important role as a mechanism partially responsible for the magnitude of the incubation period 16 .…”

Section: Introductionmentioning

confidence: 99%

Effect of Cold Work on Cavitation Resistance of an Austenitic Stainless Steel Coating

2016

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Machining procedures of welding deposits are usual and result on cold work hardened surfaces. The cold work effect on cavitation erosion of an austenitic stainless steel surface is assessed. FeCrMnSiB coatings were processed by PTA on AISI 304 plates. Specimens were grouped as the cold work deformed surface (CWHS) and the undeformed polished surface (UPS) specimens. Top surface and transverse section of coatings were analysed for slip lines and hardness changes by light microscopy and Vickers microhardness measurements. Ultrasonic cavitation tests were conducted in accordance to ASTM G32-10. CWHS specimens exhibited slip lines and hardened surfaces while UPS specimens did not show traces of slip lines and had insignificant changes on microhardness. Cold work prior to cavitation indirectly increased the nominal incubation time and reduced the maximum erosion rate. Cold work increases the duration of the acceleration period postponing the onset of the maximum erosion rate and enhancing cavitation resistance.

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“…Several experimental research [6] to [8] and analytical studies [9] to [11] investigate the process of cavitation and its consequences in hydro turbines.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study Regarding the Cavitation and Corrosion Resistance of Stellite 6 and Self-Fluxing Remelted Coatings

Ciubotariu

Secosan

Mărginean

et al. 2016

SV-JME

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Cavitation erosion of martensitic and austenitic stainless steel welded coatings

Cited by 89 publications

References 9 publications

Experimental and numerical investigation of cavitation-induced erosion in thermal sprayed single splats

Experimental and numerical investigation of cavitation-induced erosion in thermal sprayed single splats

Effect of Cold Work on Cavitation Resistance of an Austenitic Stainless Steel Coating

Experimental Study Regarding the Cavitation and Corrosion Resistance of Stellite 6 and Self-Fluxing Remelted Coatings

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