Results 101 to 110 of about 8,523 (209)

High-velocity oxy-fuel and high-velocity air fuel sprayed WC-Co-Cr coatings on solution-treated 21-4N steel for slurry and corrosion resistance

Journal of Electrochemical Science and Engineering
This study aims to fabricate WC-Co-Cr coatings on the solution-treated 21-4N steel utilizing high-velocity oxy-fuel (HVOF) and high-velocity air fuel (HVAF) techniques.
Rajanna Lingappa, Tumakur Gangadhar Mamatha, Momballi Shivappadevaru Prabhuswamy, Vikrant Singh, Anuj Bansal   +4 more
doaj   +1 more source

Investigation of microstructure and Isothermal oxidation resistance of cermet HVOF coated on AISI316L at 900 °C

Results in Surfaces and Interfaces
The current paper examines the WCCoCr coatings using HVOF sprayed on AISI316L stainless steel and their oxidation behaviour 50 cycles at 900 °C. Oxidation kinetics was developed by calculating weight changes for uncoated and cermet sprayed samples, and ...
Naveen Kumar, Vikas Kumar Choubey
doaj   +1 more source

Improvement of Surface Properties of Inconel718 by HVOF Coating with WC-Metal Powder and by Laser Heat Treatment of the Coating

Advances in Materials Science and Engineering, 2015
High-velocity oxygen-fuel (HVOF) thermal spray coating with WC-metal powder was carried out by using optimal coating process on an Inconel718 surface for improvement of the surface properties, friction, wear, and corrosion resistance.
Hui Gon Chun, Tong Yul Cho, Jae Hong Yoon, Gun Hwan Lee   +3 more
doaj   +1 more source

Багатошарові термічні бар'єри, одержані в результаті застосування aps і hvof технологій [PDF]

, 2009
Розглядаються технологічні параметри методу плазмового нанесення захисного шару. Запропонована методика нанесення проміжного шару (100 % металу). За допомогою подальших захисних шарів в атмосфері аргон-водень шляхом плазмового струменя, інтеграцій ...
Ауреліан, Б., Бачіу, К., Георгеску, С., Русу, І.   +3 more
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Research into the Properties of Wear-Resistant Coatings Produced Using HVOF Technology on the Functional Surfaces of Injection Molds

Metals
The paper presents the results of research aimed at verifying the possibility of creating renovation layers using HVOF (High Velocity Oxygen Fuel) technology.
Janette Brezinová, Milan Fiľo, Viktor Puchý, Ján Viňáš, Jakub Brezina, Ema Nováková-Marcinčínová   +5 more
doaj   +1 more source

Erosion-corrosion behaviour of Zirconia WC-6Co, WC-6Ni and SS316 [PDF]

, 2015
The current study investigates a ceramic, two cermets and a metal under solid-liquid impingement with 3.5% NaCl and 150mg/l hydraulic fracturing sand at two extreme angles of impact, 90° and 20°.
Andrews, N., Galloway, A. M., Giourntas, L., Pearson, A.   +3 more
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Laser re-melting of modified multimodal Cr3C2–NiCr coatings by HVOF: Effect on the microstructure and anticorrosion properties

Reviews on Advanced Materials Science, 2023
Irfan, Hu Ming, Meng Lingyu, Shi Chenxi
doaj   +1 more source

Turn Milling of Inconel 718 Produced via Additive Manufacturing Using HVOF and DMLS Methods

Journal of Manufacturing and Materials Processing
Additive and coating technologies, such as high-velocity oxy-fuel (HVOF) thermal spraying and direct metal laser sintering (DMLS), often require extensive post-processing to meet dimensional and surface quality requirements, which remains challenging for
Michal Povolný, Michal Straka, Miroslav Gombár, Jan Hnátík, Jan Kutlwašer, Josef Sklenička, Jaroslava Fulemová   +6 more
doaj   +1 more source

Diagnostic tools for HVOF process optimization: Dissertation

, 2005
In the thermal spray process the coating is built up from lamellas formed by rapid solidification of the melted or semi-melted droplets attached to the substrate. A typical structure for the coating is a pancake-like lamellar structure, where the flattening stage and adhesion between the lamellas, together with the coating material itself, define the ...
openaire   +2 more sources

Avaluació de les característiques dels recobriments dúplex HVOF + PVD [PDF]

, 2013
Un dels principals inconvenients que presenten els recobriments PVD (“Physical Vapor Depsition”), és que no es poden dipositar sobre aliatges lleugers degut a la gran diferencia de dureses entre la capa dura superficial dipositada sobre un substrat ...
Pinés Fernández, Raúl
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