Erosion–corrosion behaviour of HVOF NiAl–Al2O3 intermetallic-ceramic coating

Buqian, Wang; Lee, Seong W.

doi:10.1016/s0043-1648(00)00309-4

Cited by 71 publications

(35 citation statements)

References 7 publications

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“…In comparison, the NAB coating has a slightly higher kinetic energy exponent suggesting a combination of both ductile and brittle erosion mechanisms possibly due to the porosity within the NAB coating. Pores are considered to be made up of oxides that are formed during spraying and were found to be stress raisers under sand particle impingement [26][27][28].…”

Section: Erosion Studymentioning

confidence: 99%

Erosion and erosion–corrosion performance of cast and thermally sprayed nickel–aluminium bronze

Barik

Wharton

Wood

et al. 2005

Wear

112

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Section: Erosion Studymentioning

confidence: 99%

Erosion and erosion–corrosion performance of cast and thermally sprayed nickel–aluminium bronze

Barik

Wharton

Wood

et al. 2005

Wear

112

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“…Thus, when volume loss is compared (mm 3 normalized for the whole perimeter) with a cermet WCmetal coating, the damage produced in CEA is as high as two order of magnitudes more ( Ref 15,17). More similar friction coefficients were obtained with NiCr-based coatings (Ref 16).…”

Section: Dry Sliding Behaviormentioning

confidence: 81%

“…The wear resistance was further improved by reinforcement with hard particles (Ref 13,15). The presence of such particles has also been reported to affect the abrasive and erosion properties even for NiAl (Ref [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Erosion, Abrasive, and Friction Wear Behavior of Iron Aluminide Coatings Sprayed by HVOF

et al. 2008

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Iron aluminides have been proposed lately as promising materials for wear applications. Many authors have focused their investigations on the friction behavior of FeAl coatings, emphasizing the role of this intermetallic phase as a new matrix to embed ceramic particles and replace the extensively studied WCCo cermet system for high temperature. However, few of these studies deal with the evaluation of the different tribological properties and their relationship with the coating microstructure. In the present study, the near stoichometric Fe40Al was successfully sprayed by means of high velocity oxy-fuel using different particle size distribution and the tribological behavior was assessed through solid particle erosion, abrasive and dry sliding tests. The wear mechanisms of the deposited coatings are discussed with regard to the observed results. In addition, oxidized samples were tested to evaluate the role of the oxide top layer; also, the powder was previously annealed to produce a coating with an almost fully ordered FeAl structure.

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“…W spiekanych materiałach kompozytowych ziarna metaliczne powodują "mostkowanie" ścian pęknięcia, a także obniżenie współczynnika intensywności naprężeń przy wierzchołku pęknięcia [6]. Powłoki cermetalowe natryskiwane plazmowo mieszaniną ConiCrAlY/Al 2 O 3 oraz mieszaniną niAl/Al 2 O 3 wykazują wysoką odporność na zużycie erozyjne [7,8]. Udziały fazy metalicznej i fazy ceramicznej mogą być tak dobrane, aby uzyskać maksimum odporności na erozję dla założonego kąta padania ścierniwa [9].…”

Section: Wstępunclassified

Mikrostruktura powłok cermetalowych natryskiwanych metodą płomieniowo-proszkową

Hejwowski

Łabacz-Kęcik

2012

Przegląd Spawalnictwa

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Mikrostruktura powłok cermetalowych natryskiwanych metodą płomieniowo-proszkowąMicrostructure of flame sprayed cermet coatings Dr hab. tadeusz Hejwowski, prof. PL, mgr inż. anna Łabacz-Kęcik -Politechnika Lubelska. StreszczenieW artykule przedstawiono wyniki badań mikrostruktury powłok natryskiwanych metodą płomieniowo-proszkową mieszaninami proszków nimoAl/ZrO 2 -30% CaO oraz niAlmo/Al 2 O 3 -40% TiO 2 . Skład fazowy określono metodą XRD i wykazano, że w powłoce ZrO 2 -30% CaO występują fazy ZrO 2 oraz CaZrO 3 , a w powłoce Al 2 O 3 -40% TiO 2 -β tytanian glinu, korund, rutyl. Porowatość powłok cermetalowych zależała od składu proszków zastosowanych do natryskiwania. Wartości parametrów struktury geometrycznej powierzchni malały ze wzrastającą zawartością materiału ceramicznego. Dodanie do materiału bazowego tworzącego osnowę cermetalu niewielkiej ilości innego materiału zmienia mechanizm formowania powłoki.

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Erosion–corrosion behaviour of HVOF NiAl–Al2O3 intermetallic-ceramic coating

Cited by 71 publications

References 7 publications

Erosion and erosion–corrosion performance of cast and thermally sprayed nickel–aluminium bronze

Erosion and erosion–corrosion performance of cast and thermally sprayed nickel–aluminium bronze

Erosion, Abrasive, and Friction Wear Behavior of Iron Aluminide Coatings Sprayed by HVOF

Mikrostruktura powłok cermetalowych natryskiwanych metodą płomieniowo-proszkową

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