Results 1 to 10 of about 8,523 (209)

Cavitation erosion characteristics and mechanisms of hydraulic turbine substrates and their coatings [PDF]

open access: yesUltrasonics Sonochemistry
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]

open access: yesArchives of Metallurgy and Materials, 2019
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

Deposition mechanisms and characteristics of nano-modified multimodal Cr3C2–NiCr coatings sprayed by HVOF

open access: yesReviews on Advanced Materials Science, 2022
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

open access: yesJournal of Aeronautical Materials, 2020
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]

open access: yesCailiao Baohu, 2021
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]

open access: yesInternational Thermal Spray Conference, 1997
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

Comparative study between high-velocity oxygen fuel and flame spraying using MCrAlY coats on a 304 stainless steel substrate

open access: yesJournal of Materials Research and Technology, 2019
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]

open access: yes, 2017
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

The Effect of SiC in NiCrBSi-SiC Composite Coating on the Microstructure, Hardness, and Oxidation Resistance

open access: yesRekayasa Mesin, 2022
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]

open access: yes, 2005
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

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