Cavitation erosion resistance of stellite alloy weld overlays

Hattori, Shuji; Mikami, Norihiro

doi:10.1016/j.wear.2009.05.007

Cited by 74 publications

(37 citation statements)

References 3 publications

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“…The erosion of the reference stainless steel sample surface is more extensive than that of the coatings, Figure 8. In contrast to the sputtered films, the SS304 surface shows developed damage combining deformation and uniform surface erosion, which is comparable with the results reported in the literature [34][35][36].…”

Section: Tialn Pits In Coatingsupporting

confidence: 90%

“…In general, the comparison of the worn surfaces agrees with the quantitative data presented in Error! Reference source not found.. As a result of cavitation, the sample surfaces are randomly degraded due to the impact of micro-jets or shock pressure waves [28,34,35]. The TiAlN coating is severely more damaged and shows the presence of more pits in its structure than the AlTiN film (Error!…”

Section: Cavitaiton Erosion Resitance (Cer)mentioning

confidence: 99%

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Cavitation Erosion and Sliding Wear Mechanisms of AlTiN and TiAlN Films Deposited on Stainless Steel Substrate

et al. 2019

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The resistance to cavitation erosion and sliding wear of stainless steel grade AISI 304 can be improved by using physical vapor deposited (PVD) coatings. The aim of this study was to investigate the cavitation erosion and sliding wear mechanisms of magnetron-sputtered AlTiN and TiAlN films deposited with different contents of chemical elements onto a stainless steel SS304 substrate. The surface morphology and structure of samples were examined by optical profilometry, light optical microscopy (LOM) and scanning electron microscopy (SEM-EDS). Mechanical properties (hardness, elastic modulus) were tested using a nanoindentation tester. Adhesion of the deposited coatings was determined by the scratch test and Rockwell adhesion tests. Cavitation erosion tests were performed according to ASTM G32 (vibratory apparatus) in compliance with the stationary specimen procedure. Sliding wear tests were conducted with the use of a nano-tribo tester, i.e., ball-on-disc apparatus. Results demonstrate that the cavitation erosion mechanism of the TiAlN and AlTiN coatings rely on embrittlement, which can be attributed to fatigue processes causing film rupture and internal decohesion in flake spallation, and thus leading to coating detachment and substrate exposition. At moderate loads, the sliding wear of thin films takes the form of grooving, micro-scratching, micro-ploughing and smearing of the columnar grain top hills. Compared to the SS reference sample, the PVD films exhibit superior resistance to sliding wear and cavitation erosion.

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Section: Tialn Pits In Coatingsupporting

confidence: 90%

Section: Cavitaiton Erosion Resitance (Cer)mentioning

confidence: 99%

Cavitation Erosion and Sliding Wear Mechanisms of AlTiN and TiAlN Films Deposited on Stainless Steel Substrate

et al. 2019

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“…To a certain extent, the erosion model of [36] (Section 4.1) corresponds to the onset of damage of X190 in this study (Figs. 10 and 12).…”

Section: Influence Of Consolidation Routementioning

confidence: 93%

“…Recent research on CE resistance of different multiphase materials revealed that damage was arising from phase boundaries [34,35]. An erosion model for a stellite alloy is presented in [36]. It starts with extrusions at the phase boundaries between the cobalt matrix and the carbides, followed by the formation of a cavity, consequently leading to missing support of the carbide by the matrix and thus resulting in the removal of entire carbides.…”

Section: Wear Mechanismsmentioning

confidence: 99%

Cavitation erosion and hydroabrasion resistance of cold work tool steels produced by powder metallurgy

Niederhofer

Huth

Theisen

2015

Wear

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“…Niszczenie próbki referencyjnej (4) odpowiada mechanizmowi zużywania przedstawionemu w pracach [10,12]. Po stosunkowo krótkim czasie ziarna austenitu podlegają deformacji plastycznej (obserwowano zmatowienie powierzchni na skutek bliźniakowania) a w późniejszych okresach niszczenia kawitacyjnego odnotowywano pojawienie się pęknięć i erozję ziaren obserwowanego obszaru.…”

Section: Charakterystyka Zjawiska Erozji Kawitacyjnej Badanych Materiunclassified

Odporność kawitacyjna powłok na osnowie niklu napawanych metodą płomieniowo-proszkową

Szala¹,

Hejwowski²

2015

Przegląd Spawalnictwa

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StreszczenieW pracy przedstawiono wyniki pomiarów odporności na zużycie kawitacyjne powłok na osnowie Ni. Powłoki wykonano metodą napawania płomieniowo-proszkowego. Badania kawitacyjne wykonano na stanowisku wibracyjnym zgodnie z normą ASTM G-32.Określono wpływ mikrostruktury, twardości i mikrotwardości wytworzonych warstw na ich odporność kawitacyjną. Przy użyciu mikroskopii elektronowej dokonano identyfikacji mechanizmu zużywania powłok. Obserwacji dokonano w oznaczonych obszarach na powierzchni powłok w wybranych czasach ekspozycji. Powłoki objęte badaniami mogą być rozważane do regeneracji elementów maszyn i urządzeń podlegających zużyciu kawitacyjnemu.Słowa kluczowe: powłoka na osnowie niklu, erozja kawitacyjna, metoda płomieniowo-proszkowa AbstractIn the work results of cavitation erosion test of nickel based coatings were presented. Coatings were pad welded with the oxy-acetylene powder torch. Cavitation tests were conducted on vibratory test rig according do ASTM G-32 standard. The influence of microstructure, hardness and microhardness on cavitation erosion resistance was investigated. The cavitation erosion mechanism was examined by using SEM microscopy. Observations were conducted in specified areas of coatings in defined times of exposition. Presented coatings could be considered to repair cavitation worn machines elements and appliance.

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Cavitation erosion resistance of stellite alloy weld overlays

Cited by 74 publications

References 3 publications

Cavitation Erosion and Sliding Wear Mechanisms of AlTiN and TiAlN Films Deposited on Stainless Steel Substrate

Cavitation Erosion and Sliding Wear Mechanisms of AlTiN and TiAlN Films Deposited on Stainless Steel Substrate

Cavitation erosion and hydroabrasion resistance of cold work tool steels produced by powder metallurgy

Odporność kawitacyjna powłok na osnowie niklu napawanych metodą płomieniowo-proszkową

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