Results 171 to 180 of about 3,872 (220)

Implementation of Artificial Neural Networks for Forecasting the HVOF Spray Process and HVOF Sprayed Coatings

Journal of Thermal Spray Technology, 2021
In the high velocity oxygen fuel (HVOF) spray process, coating properties are sensitive to the characteristics of in-flight particles, which are mainly determined by process parameters. Obtaining a comprehensive multi-physical model or analysis of the HVOF process remains challenging because of the complex chemical and thermodynamic reactions that ...
Liu, Meimei, Yu, Zexin, Wu, Hongjian, Liao, Hanlin, Zhu, Qixin, Deng, Sihao   +5 more
openaire   +1 more source

Effect of different HVOF coatings on the tribological behavior of PVD/HVOF duplex coatings

Tribology International
Lei Shao, Wensheng Li, Canming Wang
exaly   +2 more sources

Tensile Testing of HVOF-Sprayed Coatings

International Thermal Spray Conference, 1999
Abstract In this paper, the Young's modulus, Poisson's ratio, and ultimate tensile strength of HVOF-sprayed NiCr (80/20) coating are evaluated by a uniaxial tensile test parallel to the coating plane. The effect of stand off distance is also considered.
Varis, Tommi, Korpiola, Kari, Jokinen, Petri, Auerkari, Pertti   +3 more
openaire   +4 more sources

Mechanical Properties of Nanocrystalline HVOF Coatings

Materials Science Forum, 2006
Thermal spraying (TS) is increasingly used to deposit thick wear resistant coatings on machine and equipment parts. Therefore, it is of uttermost importance to know their mechanical properties in order to tailor and optimize the coatings for various applications.
Hannula, Simo-Pekka, Fält, T., Turunen, Erja, Manninen, T.   +3 more
openaire   +3 more sources

Standard HVOF Process Compared to the HVOF Process for Internal Coating with Fine Powders

International Thermal Spray Conference, 2008
Abstract The main argument against the use of the internal HVOF process is the high thermal stress to which the substrates are subjected during the coating process. Traditional HVOF guns operate with a flame-stream energy level of 100–200 kW. Rendering HVOF technology usable for the application of internal coatings requires the reduction
G. Matthaeus, W. Brandl, I.-F. Secosan, G. Marginean, V. Chirila, D. Ackermann   +5 more
openaire   +1 more source

HVOF Ceramic Coatings

International Thermal Spray Conference, 2004
Abstract A secondary acetylene after burner attached with an HVOF gun has been developed to produce high quality coatings required of ceramics. The secondary burner adds heat energy, enough to make deposition, to fine ceramic particles heated and accelerated by an HVOF gun.
T. Morishita, S. Osawa, T. Itsukaichi
openaire   +1 more source

Nanoreinforced HVOF-Sprayed Ceramic Coatings

International Thermal Spray Conference, 2005
Abstract HVOF thermal spraying has been developed to deposit dense Al2O3-coatings with improved protective properties for various applications. Nanocrystalline coatings have been found to offer better thermal shock resistance, lower thermal conductivity and better wear resistance than their conventional counterparts.
Turunen, Erja, Varis, Tommi, Hannula, Simo-Pekka, Keskinen, Jari, Lintunen, Pertti, Fält, Teppo   +5 more
openaire   +3 more sources

Optimized HVOF Titania Coatings

Journal of Thermal Spray Technology, 2003
A series of spray parameters was tested for a titania (TiO2) feedstock, and the in-flight particle temperature was measured for each setting combination. The parameter set that resulted in the highest particle temperature was selected for producing coatings for further study and analysis.
R. S. Lima, B. R. Marple
openaire   +1 more source

Cavitation Erosion of HVOF Coatings

International Thermal Spray Conference, 1996
Abstract The proposed paper reports a series of experiments to investigate the cavitation erosion mechanism of HVOF coatings. Vibratory cavitation erosion tests according to ASTM G 32 have been carried out with several HVOF coatings including cermets, oxides and metallic alloys.
R. Schwetzke, H. Kreye
openaire   +1 more source

HVOF Coating and Characterization

2014
HVOF Coating is one of the thermal barrier coatings to protect surfaces from high temperature, corrosion, and erosion environments. Coating characteristics including thickness, metallurgy, elemental composition, and morphology play an important role in practical applications.
Bekir Sami Yilbas, Iyad Al-Zaharnah, Ahmet Sahin   +2 more
openaire   +1 more source