A comparison of the abrasive wear behaviour of HVOF sprayed titanium carbide- and titanium boride-based cermet coatings

Jones, Mark I.; Horlock, A.J.; Shipway, P.H.; McCartney, D.G.; Wood, J. V.

doi:10.1016/s0043-1648(01)00702-5

Cited by 85 publications

(28 citation statements)

References 11 publications

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“…Wear properties of TiB 2 -containing cermet coatings have been addressed e.g., in refs. [42,43]. HVOF spraying of Ni(Cr)-65 wt.% TiB 2 and Fe(Cr)-70 wt.% TiB 2 powders resulted in TiB 2 -containing coatings that were found to perform better in abrasive wear with alumina than conventional Cr 3 C 2 -NiCr deposits.…”

Section: Wear Resistant Cermetsmentioning

confidence: 99%

“…HVOF spraying of Ni(Cr)-65 wt.% TiB 2 and Fe(Cr)-70 wt.% TiB 2 powders resulted in TiB 2 -containing coatings that were found to perform better in abrasive wear with alumina than conventional Cr 3 C 2 -NiCr deposits. Coatings having composition of Ni(Cr)-65 wt.% TiB 2 , Ni(Cr)-40 wt.% TiB 2 , and Ni(Cr)-40 wt.% TiB 2 with 5 at.% excess boron in order to promote matrix amorphization have also been studied [42]. The size of the TiB 2 particles within the cermet was found to depend critically on the initial composition; large particles were favored by low binder fractions and the presence of the excess boron.…”

Section: Wear Resistant Cermetsmentioning

confidence: 99%

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Optimization and Characterization of High Velocity Oxy-fuel Sprayed Coatings: Techniques, Materials, and Applications

et al. 2011

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Abstract:In this work High Velocity Oxy-fuel (HVOF) thermal spray techniques, spraying process optimization, and characterization of coatings are reviewed. Different variants of the technology are described and the main differences in spray conditions in terms of particle kinetics and thermal energy are rationalized. Methods and tools for controlling the spray process are presented as well as their use in optimizing the coating process. It will be shown how the differences from the starting powder to the final coating formation affect the coating microstructure and performance. Typical properties of HVOF sprayed coatings and coating performance is described. Also development of testing methods used for the evaluation of coating properties and current status of standardization is presented. Short discussion of typical applications is done.

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Section: Wear Resistant Cermetsmentioning

confidence: 99%

Section: Wear Resistant Cermetsmentioning

confidence: 99%

Optimization and Characterization of High Velocity Oxy-fuel Sprayed Coatings: Techniques, Materials, and Applications

et al. 2011

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“…The levels defined in this experiment are based on the values recommended by manufacturers [17], as well as articles where similar alloys deposited by HVOF were studied [18][19][20][21][22][23][24][25][26][27]. Table 2 shows the L9 orthogonal array with the factors and levels used in this article.…”

Section: Methodsmentioning

confidence: 99%

Optimization of the Deposition Parameters of HVOF FeMnCrSi+Ni+B Thermally Sprayed Coatings

et al. 2015

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HVOF thermal spray process produces coatings with low porosity and low oxide content, as well as high substrate adhesion. Small variations on the parameters of the HVOF process can generate coatings with different characteristics and properties, which also is chemical composition depended of the alloy. FeMnCrSi alloy is a cavitation resistant class of material with a great potential for HVOF deposition use. The main goal of this article is to study the influence of some HVOF parameters deposition, as standoff distance, powder feed rate and carrier gas pressure on three different alloys. FeMnCrSi experimental alloys with some variations in nickel and boron content were studied. Taguchi experimental design with L9 orthogonal array was used in this work. Porosity, oxide content, tensile adhesion strength and microhardness of the coatings were evaluated. The results indicated that all factors have significant influence on these properties. Chemical composition of the alloys was the most important factor, followed by the carrier gas pressure, standoff distance and powder feed rate. The addition of Ni, produces coatings with lower levels of oxide content and porosity. An experiment with improved parameters was conducted, and a great improvement on the coating properties was observed.

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“…Pure TiB 2 is brittle and easily reacts with oxygen at high temperature, so it should cohere to soft materials to form a metal-ceramic coating, such as NiCr alloy [14,15]. In this work, TiB 2 and NiCr These powders were deposited on Q235 steel substrate (80 mm × 30 mm × 30 mm) by using the SG-100DC plasma torch (Praxair 3710, Praxair, Cleveland, OH, USA).…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Tribological Performance of TiB2-NiCr Composite Coating Deposited by APS

Zhang

Wei³

et al. 2017

Coatings

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Nickel chromium (NiCr) powders with different titanium diboride (TiB 2 ) additions (20, 40 and 60 wt %) were prepared with a mechanical alloying method and then sprayed using an air plasma spraying technology. The microstructure and phase composite of the powders and the cross-sections of deposited coatings were analyzed with a scanning electronic microscope and X-ray diffraction. The tribological performance of the coatings was studied using a pin-on-disk tribometer at room temperature. The weight loss of the as-sprayed coating was measured by using a high accuracy weighing balance. Cr 3 C 2 -25NiCr coating was produced and tested for comparison. The morphologies of the worn surface were then investigated. Parts of debris with some scratches were found, presenting typical signs of abrasive wear and showing slight adhesive wear on the surface. The 20 wt % additive TiB 2 coating demonstrated the highest microhardness and the lowest coefficient of friction. The wear resistance of the metal-ceramic composites coatings was enhanced with the addition of TiB 2 .

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A comparison of the abrasive wear behaviour of HVOF sprayed titanium carbide- and titanium boride-based cermet coatings

Cited by 85 publications

References 11 publications

Optimization and Characterization of High Velocity Oxy-fuel Sprayed Coatings: Techniques, Materials, and Applications

Optimization and Characterization of High Velocity Oxy-fuel Sprayed Coatings: Techniques, Materials, and Applications

Optimization of the Deposition Parameters of HVOF FeMnCrSi+Ni+B Thermally Sprayed Coatings

Microstructure and Tribological Performance of TiB2-NiCr Composite Coating Deposited by APS

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