Results 1 to 10 of about 8,523 (209)
Cavitation erosion characteristics and mechanisms of hydraulic turbine substrates and their coatings [PDF]
This study systematically investigated the cavitation erosion resistance and failure mechanisms of 06Cr13Ni5Mo(S135) stainless steel and four coatings (HVOF-WC10Co4Cr, HVOF-Cr3C237WC18, HVAF-WC10Co4Cr, Laser-Clad(LC)) using ultrasonic cavitation testing.
Pengbo Wu +5 more
doaj +2 more sources
Spray Deposition of Mechanically Alloyed F/M ODS Steel Powder [PDF]
Thermal/cold spray deposition were used for additive manufacture of oxide dispersion strengthened (ODS) steel layers. Mechanically alloyed F/M ODS steel powders (Fe(bal.)-10Cr-1Mo-0.25Ti-0.35Y2O3 in wt.%) were sprayed by a high velocity oxygen fuel (HVOF)
Suk Hoon Kang +3 more
doaj +1 more source
Nano-modified multimodal and conventional Cr3C2–NiCr coatings were fabricated by high-velocity oxygen-fuel spraying deposited on CuCrZr substrates. Results showed that individual nano-modified multimodal Cr3C2–NiCr particles were composed of nano (25−180
Shi Chenxi +5 more
doaj +1 more source
The microstructure and properties of CoCrAlYSi-hBN coating prepared by HVOF
CoCrAlYSi-hBN coating was fabricated using the high-velocity oxygen fuel (HVOF) process under several processing conditions, and the effects of process parameters, gas flow and spray distance, on the microstructure and properties of the coating were ...
ZHANG Ang +6 more
doaj +1 more source
Study on Composite CoNiCrAlY Coating with Super Fine Al2O3 Particles Sprayed by HVOF and APS [PDF]
Adding a certain amount of Al2O3 to MCrACY could improve its high temperature wear resistance. For this, CoNiCrAlY and micron Al2O3 powder particles were mixed in proportion and then milled in a sealed ball mill to obtain composite ...
CAO Bin, CHEN Xiong - wei, SUN Xiao - ping
doaj +1 more source
Oxidation in HVOF-Sprayed Steel [PDF]
Abstract It is widely held that most of the oxidation in thermally sprayed coatings occurs on the surface of the droplet after it has flattened. The evidence in this paper suggests that, for the conditions studied here, oxidation of the top surface of flattened droplets is not the dominant oxidation mechanism. In this study, a mild steel
Smith, M. F. +2 more
openaire +1 more source
High-velocity oxygen fuel (HVOF) and flame spraying (FS) are alternative methods to thermal spraying processes to produce dense high-quality coatings. The aim of this study is to compare the microstructure and mechanical properties for HVOF and FS using ...
Abou Bakr Elshalakany +4 more
doaj +1 more source
Assessment of Coating Performance on Waterwalls and Superheaters in a Pulverised Fuel-Fired Power Station [PDF]
Protective coatings offer one route to increase the lives of heat exchangers in pulverised fuel power plants. A range of candidate coatings have been exposed on the waterwall and superheaters of a 500 MWe UK power station unit for periods of up to ~4 ...
Davis, Colin +3 more
core +2 more sources
Many industrial parts degrade, which reduces plant reliability. Waterwall tube is part of the circulating fluidized bed (CFB) boiler that often degrades caused by the bed materials’ erosion.
Suwarno Suwarno +3 more
doaj +1 more source
Rapid Prototyping of PEM Fuel Cell Bi-Polar Plates using 3D Printing and Thermal Spray Deposition [PDF]
This article presents the results of exploratory research on novel methods for the fabrication of functional, metallic, gas flow, bi polar plates (BPP) for use in proton exchange membrane fuel cells (PEMFC). Low cost, high speed, additive manufacturing
Batalov, Marat +3 more
core +1 more source

