Development of iron aluminide coatings on steel substrates

2021 ◽  
Author(s):  
Gabriela de Andrade Oliveira ◽  
Fernanda Troysi ◽  
Norberto Martins ◽  
Ana Paula Silva ◽  
Pedro Augusto Ramos ◽  
...  
Keyword(s):  
Iron Aluminide ◽  
Aluminide Coatings ◽  
Steel Substrates

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

In-Situ Processing of Nickel Aluminide Coatings on Steel Substrates

2013 ◽  
pp. 171-180 ◽  
Author(s):  
Rajesh Ranganathan ◽  
Olga Vayena ◽  
Teiichi Ando ◽  
Charalabos C. Doumanidis ◽  
Craig A. Blue
Keyword(s):  
Nickel Aluminide ◽  
Aluminide Coatings ◽  
In Situ Processing ◽  
Steel Substrates

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

Interdiffusion behaviors of iron aluminide coatings on China low activation martensitic steel

2014 ◽  
Vol 455 (1-3) ◽  
pp. 578-581
Author(s):  
X.X. Zhu ◽  
H.G. Yang ◽  
X.M. Yuan ◽  
W.W. Zhao ◽  
Q. Zhan
Keyword(s):  
Martensitic Steel ◽  
Iron Aluminide ◽  
Aluminide Coatings

Thermal and Mass Balance in Reactive Thermal Processing of Nickel Aluminide Coatings on Steel Substrates

2002 ◽  
Vol 750 ◽  
Author(s):  
Tarek Alaeddine ◽  
Rajesh Ranganathan ◽  
Teiichi Ando ◽  
Charalabos C. Doumanidis ◽  
Peter Y. Wong
Keyword(s):  
Heat Source ◽  
Thermal Processing ◽  
Nickel Aluminide ◽  
Rapid Heating ◽  
Function Analysis ◽  
Local Equilibrium ◽  
Nickel Concentration ◽  
Aluminide Coatings ◽  
Steel Substrates ◽  
Nickel Dissolution

ABSTRACTNickel aluminide coatings were produced on steel substrates by reactive thermal processing of pre-plated precursor layers of nickel and aluminum using plasma arc as the heat source. Controlled rapid heating melted the outer aluminum layer, which then dissolved nickel to facilitate the nucleation and growth of a nickel aluminide. The resultant coating microstructures varied from a duplex or triplex structure, consisting of either NiAl3 and a eutectic; Ni2Al3, NiAl3 and a eutectic; to a fully monolithic Ni2Al3 structure, with the latter resulting at high heat input rates and/or low heat-source traverse rates. The temperature of the reaction layer was simulated for the experimental conditions by a numerical model based on Green's function analysis. The nickel concentration at the liquid-solid interface just before any nickel aluminide nucleation was calculated by assuming local equilibrium interface conditions between the liquid layer and the fcc nickel-rich solution. The depth of nickel dissolution, which consequently determines the extent of nickel aluminide growth, was also predicted by the model. Numerical results of the nickel dissolution compared well with experimental observations.

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