Characterization of MCrAlY/nano-Al2O3 nanocomposite powder produced by high-energy mechanical milling as feedstock for high-velocity oxygen fuel spraying deposition

2021 ◽  
Vol 28 (9) ◽  
pp. 1534-1543
Author(s):  
F. Ghadami ◽  
A. Sabour Rouh Aghdam ◽  
S. Ghadami
Keyword(s):  
High Velocity ◽  
Mechanical Milling ◽  
High Energy ◽  
High Velocity Oxygen Fuel ◽  
Nanocomposite Powder ◽  
Oxygen Fuel

Fabrication and characterization of nanostructured hydroxyapatite coating on Mg-based alloy by high-velocity oxygen fuel spraying

2018 ◽  
Vol 44 (12) ◽  
pp. 14667-14676 ◽  
Author(s):  
Marzieh Mardali ◽  
Hamidreza Salimijazi ◽  
Fathallah Karimzadeh ◽  
Berengere J.C. Luthringer-Feyerabend ◽  
Carsten Blawert ◽  
...  
Keyword(s):  
High Velocity ◽  
Hydroxyapatite Coating ◽  
High Velocity Oxygen Fuel ◽  
Fabrication And Characterization ◽  
Oxygen Fuel

Titanium Based Composite Coatings Deposited by High Velocity Oxygen Fuel (HVOF) and Plasma Spraying Methods

2013 ◽  
Vol 551 ◽  
pp. 127-132
Author(s):  
Asma Salman ◽  
Brian Gabbitas ◽  
De Liang Zhang
Keyword(s):  
Plasma Spraying ◽  
High Velocity ◽  
Composite Coatings ◽  
High Energy ◽  
High Velocity Oxygen Fuel ◽  
Air Plasma ◽  
Feedstock Powder ◽  
Hvof Spraying ◽  
Sprayed Coating ◽  
Oxygen Fuel

The study involves a special class of composites called interpenetrating phase composites (IPCs). The Ti(Al,O)/Al2O3 composite was produced using high energy mechanical milling of a mixture of TiO2 and Al followed by a high temperature self-propagating reaction. Characteristics of the feedstock powder were improved by treating it with an organic binder. The feedstock powder was thermally sprayed on to a substrate using high velocity oxygen fuel (HVOF) and air plasma spraying methods. The spraying methods resulted in coatings with significantly different microstructures. Compared with plasma sprayed coating, the coating produced by a HVOF spraying method showed a much finer and densely packed microstructure.

scholarly journals Microstructure Characterization of WCCo-Mo Based Coatings Produced Using High Velocity Oxygen Fuel

2015 ◽  
Vol 21 (8) ◽  
pp. 344-347 ◽  
Author(s):  
Serkan Islak ◽  
Durmuş Kır ◽  
Soner Buztoy ◽  
Cihan Özorak ◽  
Mehmet Akkaş ◽  
...  
Keyword(s):  
High Velocity ◽  
Microstructure Characterization ◽  
High Velocity Oxygen Fuel ◽  
Oxygen Fuel

COLMONOY NO. 43HV

Alloy Digest ◽  
2008 ◽  
Vol 57 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
High Velocity ◽  
Base Alloy ◽  
Heat Treating ◽  
High Velocity Oxygen Fuel ◽  
Nickel Base Alloy ◽  
Nickel Base ◽  
Oxygen Fuel

Abstract Colmonoy No. 43HV comprises a nickel-base alloy recommended for hard surfacing parts to resist wear, corrosion, heat, and galling. Deposits that have moderate hardness have increased ductility and slightly less resistance to abrasion than Colmonoy 53HV. Deposits can be finished by grinding or machined with carbide tooling. Colmonoy No. 43HV is supplied as an atomized powder specially sized for application with high-velocity oxygen fuel (HVOF) systems. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance and surface qualities as well as heat treating and surface treatment. Filing Code: Ni-664. Producer or source: Wall Colmonoy Corporation.

Difference oxidation behaviors of Ni8Al and Ni25Cr coatings in air with water vapor at 650∘

2021 ◽  
pp. 2150274
Author(s):  
Dingjun Li ◽  
Wenlang Huang ◽  
Xiaohu Yuan ◽  
Taihong Huang ◽  
Chao Li ◽  
...  
Keyword(s):  
Water Vapor ◽  
High Velocity ◽  
Cyclic Oxidation ◽  
Oxidation Behaviour ◽  
Fuel Spray ◽  
High Velocity Oxygen Fuel ◽  
Service Environment ◽  
Generator Unit ◽  
Oxygen Fuel ◽  
Oxidation Behaviors

The oxidation behaviour of Ni8Al and Ni25Cr coatings produced by high velocity oxygen fuel spray (HVOF) which were deposited on Fe-based alloys (CB2) was investigated. We simulated the service environment of the steam generator unit, and put the samples in a thermostatic tube furnace at 650[Formula: see text] in air with 20 wt.% water vapor for 1000 hours of cyclic oxidation. The formation mechanism are explained using SEM, XRD, and EDX. There were no spallations and obvious cracks in both coatings. Ni25Cr coating generated a better protection oxides scale than that scale on Ni8Al. The behavior and mechanism of the oxide scale formation had an important influence in coatings and we have discussed these phenomenons in the study.

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