Deposition and corrosion resistance of HVOF sprayed nanocrystalline iron aluminide coatings

2005 ◽  
Vol 190 (2-3) ◽  
pp. 406-416 ◽  
Author(s):  
Gang Ji ◽  
Omar Elkedim ◽  
Thierry Grosdidier
Keyword(s):  
Corrosion Resistance ◽  
Iron Aluminide ◽  
Aluminide Coatings ◽  
Nanocrystalline Iron

X-Rays and TEM Characterization of Nanocrystalline Iron Aluminide Coatings Prepared by HVOF Thermal Spraying

2000 ◽  
Author(s):  
T. Grosdidier ◽  
H.L. Liao ◽  
A. Tidu
Keyword(s):  
Raw Materials ◽  
Low Cost ◽  
Thermal Spraying ◽  
Iron Aluminide ◽  
X Rays ◽  
Fine Grained ◽  
Aluminide Coatings ◽  
Hvof Thermal Spraying ◽  
Nanocrystalline Iron ◽  
Milled Powders

Abstract FeAl iron-aluminide based materials with the ordered B2 structure are excellent candidates for use in high temperature applications because of the combination of good mechanical properties, low density, low cost and availability of raw materials, and improved oxidation resistance. The aim of this article is to produce an ultra-fine grained FeAl coating by HVOF thermal spraying of milled powders and characterize the fine scale features of its microstructure. Comparison is made with a more conventional coating obtained by projection of powders obtained by atomization. Starting powders and coatings were investigated using X-ray diffraction and transmission electron microscopy. It was observed that the coating obtained from milled powders had a microstructure essentially characterised by a nanometer grain size and the presence of a disordered FeAl phase.

Study of the Role of Small Additions of Zr in the CVD- FBR Aluminization Process

2009 ◽  
Vol 289-292 ◽  
pp. 293-300
Author(s):  
L. Sánchez ◽  
F.J. Bolívar ◽  
M.P. Hierro ◽  
F.J. Pérez
Keyword(s):  
Fluidized Bed ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Fluidized Bed Reactor ◽  
Iron Aluminide ◽  
Martensitic Steels ◽  
Aluminide Coatings ◽  
Deposition Parameters ◽  
Zirconium Powder

In this work, iron aluminide coatings were developed by Chemical Vapor Deposition in Fluidized Bed Reactor (CVD-FBR) on ferritic-martensitic steels. Small additions of zirconium powder were introduced in the fluidized bed; as a consequence, the obtained coatings are thicker than that without zirconium additions. When Zr powders are added in the fluidized bed, the deposition atmosphere drastically changes, leading to increase the deposition rate. Thermodynamic calculations were carried out to simulate the modifications in the CVD atmosphere in the Al/Zr deposition system in comparison to the single aluminization. In order to optimize the conditions of the deposition, parameters such as temperature and concentration of zirconium introduced into the bed were evaluated and compared with the results obtained for the single aluminum deposition.

Study on formation and characterization of iron aluminide coatings on 9Cr–1Mo steel substrate

2014 ◽  
Vol 240 ◽  
pp. 365-372 ◽  
Author(s):  
R. Arabi Jeshvaghani ◽  
M. Emami ◽  
O. Shafiee ◽  
H.R. Shahverdi
Keyword(s):  
Steel Substrate ◽  
Iron Aluminide ◽  
Aluminide Coatings

Formation of iron aluminide coatings on plain carbon steel by TIG process

2017 ◽  
Vol 96 (5-8) ◽  
pp. 1655-1663 ◽  
Author(s):  
Peiman Omranian Mohammadi ◽  
Ramin Raiszadeh ◽  
Hamidreza Shahverdi
Keyword(s):  
Carbon Steel ◽  
Plain Carbon Steel ◽  
Iron Aluminide ◽  
Aluminide Coatings

Erosion, Abrasive, and Friction Wear Behavior of Iron Aluminide Coatings Sprayed by HVOF

2008 ◽  
Vol 17 (5-6) ◽  
pp. 762-773 ◽  
Author(s):  
J.M. Guilemany ◽  
N. Cinca ◽  
J. Fernández ◽  
S. Sampath
Keyword(s):  
Wear Behavior ◽  
Iron Aluminide ◽  
Aluminide Coatings

scholarly journals The Effect of Hot Treatment on Composition and Microstructure of HVOF Iron Aluminide Coatings in Na2SO4 Molten Salts

2019 ◽  
Vol 28 (7) ◽  
pp. 1492-1510
Author(s):  
C. Senderowski ◽  
N. Cinca ◽  
S. Dosta ◽  
I. G. Cano ◽  
J. M. Guilemany
Keyword(s):  
Molten Salts ◽  
Iron Aluminide ◽  
Aluminide Coatings
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