Vickers Indentation Fracture (VIF) modeling to analyze multi-cracking toughness of titania, alumina and zirconia plasma sprayed coatings

Chicot, Didier; Duarte, G.; Tricoteaux, Arnaud; Jorgowski, B.; Leriche, Anne; Lesage, Jacky

doi:10.1016/j.msea.2009.08.058

Cited by 66 publications

(36 citation statements)

References 50 publications

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“…The values of H IT and E IT , determined as average of values and measured in the range of 2 lm-maximum depth of indentation at 10 N by continuous stiffness indentation method, represent the mechanical properties of the coating at micro-scale, which can be used for further characterization of the coating, for example, in the indentation fracture toughness equations (Ref 7,44,45) or for wear prediction equations (Ref [46][47][48][49].…”

Section: Resultsmentioning

confidence: 99%

The Instrumented Indentation Study of HVOF-Sprayed Hardmetal Coatings

et al. 2011

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Elastic-plastic properties, namely, hardness and YoungÕs modulus, of four HVOF-sprayed hardmetal coatings were measured by instrumented indentation using Oliver-Pharr method Nanoindenter XP MTS with a continuous stiffness measurement (CSM) module. The results show that with sufficient number of CSM measurements, one can distinguish between indents made in the hard particles and indents made in the binder material. This can be accomplished by analyzing the plots of hardness and YoungÕs modulus versus load (or versus indentation depth). Further development of the dependence curves enables the load (or indentation depth) to be set to correspond to the point of transition from a single structure component to the composite material and to determine the properties of both. Comparison of results of CSM measurement with the results of single indentation measurement at a defined load reveals a new perspective on the origin of the indentation size effect in hardmetal coatings. The measurements show that the increase in both the hardness and YoungÕs modulus with decreasing load is caused mainly by the predominant influence of hard particles in the coatings.

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Section: Resultsmentioning

confidence: 99%

The Instrumented Indentation Study of HVOF-Sprayed Hardmetal Coatings

et al. 2011

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“…The modification of surface layers has been discussed in numerous publications. The authors modify the layer by using the laser beam [1][2][3][4][5][6][7][9][10][11] as well as using the plasma jet [8,12].…”

Section: Introductionmentioning

confidence: 99%

“…Surface and heat treatment using a laser beam is advantageous because it results in beneficial microhardness, high wear resistance and good corrosion resistance [1-7, 9-11, 13]. The appropriate selection of the surface material and the treatment parameters lead to the extension of the life cycle of the product [1][2][3][4][5][6][7][8][9][10][11][12] In the paper [7] authors presented analysis of corrosion and wear resistance of NiTi surface after the modification by Mo and ZrO2 using a laser beam. The modified layers were free from microcracks and porosity.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, phase composition and corrosion resistance of Ni₂O₃ coatings produced using laser alloying method

Bartkowska

Przestacki

Chwalczuk

2016

Archives of Mechanical Technology and Materials

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A B S T R A C TThe paper presents the studies' results of microstructure, microhardness, cohesion, phase composition and the corrosion resistance analysis of C45 steel after laser alloying with nickel oxide (Ni2O3). The aim of the laser alloying was to obtain the surface layer with new properties through covering C45 steel by precoat containing modifying compound, and then remelting this precoat using laser beam. As a result of this process the surface layer consisting of remelted zone and heat affected zone was obtained. In the remelted zone an increased amount of modifying elements was observed. It was also found that the surface layer formed during the laser alloying with Ni2O3 was characterized by good corrosion resistance. This property has changed depending on the thickness of the applied precoat. It was observed that the thickness increase of nickel oxides precoat improves corrosion resistance of produced coatings.

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“…Previous tensile adhesion tests of APS and high-velocity oxyfuel sprayed TBC systems have shown that TBC systems mainly fracture close to the BC/TC interface and give adhesion strengths of 10-50 MPa, [34][35][36][37]. Fracture toughness measurement by Vickers indentation has also been shown applicable to coatings, [27,36,38,39], and a correlation has been found between tensile adhesion strength and interface indentation toughness, [27,36]. Tensile adhesion of heat treated coatings has been somewhat studied, [31,34,39,40]: TBC systems exposed to short, (2 h), heat treatments exhibited an increase in adhesion strength, [34], while thermal cycling decreased the adhesion strength, [40].…”

Section: Introductionmentioning

confidence: 99%

Influence of isothermal and cyclic heat treatments on the adhesion of plasma sprayed thermal barrier coatings

Eriksson¹,

Brodin²,

Johansson³

et al. 2011

Surface and Coatings Technology

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The adhesion of thermal barrier coatings (TBC) has been studied using the standard method described in ASTM C633, which makes use of a tensile test machine to measure the adhesion. The studied specimens consist of air plasma sprayed (APS) TBC deposited on disc-shaped substrate coupons of Ni-base alloy Hastelloy X. The bond coat (BC) is of a NiCoCrAlY type and the top coat (TC) consists of yttria-stabilised-zirconia. Before the adhesion test, the specimens were subjected to three different heat treatments: 1) isothermal oxidation at 1100 up to 290 h, 2) thermal cycling fatigue (TCF) at 1100 up to 300 cycles and 3) thermal shock at ∼ 1140 BC/TC interface temperature up to 1150 cycles. The adhesion of the specimens is reported and accompanied by a microstructural study of the BC and the thermally grown oxides (TGO), as well as a discussion on the influence of BC/TC interfacial damage on adhesion properties of TBC. The adhesion was * Corresponding author. Tel.: +46 13 284410; fax: +46 13 282505. E-mail address: robert.eriksson@liu.se Preprint submitted to Surface and Coatings Technology June 4, 2011 found to vary with heat treatment, as well as with heat treatment length.

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Vickers Indentation Fracture (VIF) modeling to analyze multi-cracking toughness of titania, alumina and zirconia plasma sprayed coatings

Cited by 66 publications

References 50 publications

The Instrumented Indentation Study of HVOF-Sprayed Hardmetal Coatings

The Instrumented Indentation Study of HVOF-Sprayed Hardmetal Coatings

Microstructure, phase composition and corrosion resistance of Ni₂O₃ coatings produced using laser alloying method

Influence of isothermal and cyclic heat treatments on the adhesion of plasma sprayed thermal barrier coatings

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Vickers Indentation Fracture (VIF) modeling to analyze multi-cracking toughness of titania, alumina and zirconia plasma sprayed coatings

Cited by 66 publications

References 50 publications

The Instrumented Indentation Study of HVOF-Sprayed Hardmetal Coatings

The Instrumented Indentation Study of HVOF-Sprayed Hardmetal Coatings

Microstructure, phase composition and corrosion resistance of Ni2O3 coatings produced using laser alloying method

Influence of isothermal and cyclic heat treatments on the adhesion of plasma sprayed thermal barrier coatings

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Product

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Microstructure, phase composition and corrosion resistance of Ni₂O₃ coatings produced using laser alloying method