scholarly journals Fabrication of Iron Aluminide Coatings (Fe3Al and FeAl3) on Steel Substrate by Self-Propagating High Temperature Synthesis (SHS) Process

2017 ◽  
Vol 4 (2) ◽  
pp. 40-44
Author(s):  
S. Mohammadkhani ◽  
◽  
N. Bondar ◽  
J. Vahdati-Khaki ◽  
M. Haddad-Sabzevar
Keyword(s):  
High Temperature ◽  
Steel Substrate ◽  
Iron Aluminide ◽  
Temperature Synthesis ◽  
Aluminide Coatings ◽  
High Temperature Synthesis

A Study of Fe-Based Composite Coating Fabricated by the Self-Propagating High Temperature Synthesis

2012 ◽  
Vol 626 ◽  
pp. 138-142
Author(s):  
Saowanee Singsarothai ◽  
Vishnu Rachpech ◽  
Sutham Niyomwas
Keyword(s):  
High Temperature ◽  
Composite Coating ◽  
Steel Substrate ◽  
The Self ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
X Ray ◽  
High Temperature Synthesis ◽  
Precursor Powders ◽  
Scanning Electron

The steel substrate was coated by Fe-based composite using self-propagating high-temperature synthesis (SHS) reaction of reactant coating paste. The green paste was prepared by mixing precursor powders of Al, Fe2O3and Al2O3. It was coated on the steel substrate before igniting by oxy-acetylene flame. The effect of coating paste thickness and the additives on the resulted Fe-based composite coating was studied. The composite coating was characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) couple with dispersive X-ray (EDS).

Effect of Al Mole Ratio on Iron Aluminide Reinforced with TiB2-Al2O3 Composite by Self-Propagating High-Temperature Synthesis

2012 ◽  
Vol 488-489 ◽  
pp. 305-309 ◽  
Author(s):  
Kunyaporn Tapsuan ◽  
Sutham Niyomwas
Keyword(s):  
High Temperature ◽  
Standard Gibbs Energy ◽  
Iron Aluminide ◽  
Molar Ratio ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
Minimization Method ◽  
X Ray ◽  
Optimum Result ◽  
High Temperature Synthesis

The Fe3Al-TiB2-Al2O3 composite has been prepared by self-propagating high-temperature synthesis (SHS) from FeTiO3-B2O3-Al system. The standard Gibbs energy minimization method was used to calculate the equilibrium compositions of the reacting species. The reactions were carried out in a SHS reactor under static argon gas at the pressure of 0.5 MPa. The effects of Al molar ratio of 4, 4.33 and 5 mole on the results product were investigated. The composition and microstructure of SHS products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The optimum result of Fe3Al intermetallics phase was obtained when using 4.33 mole of Al.

Microstructure and Adhesion of NiAl/Al and NiAl/Ni Coatings Formed by SHS Process

2014 ◽  
Vol 660 ◽  
pp. 185-189
Author(s):  
Tri Widodo Besar Riyadi ◽  
Tao Zhang ◽  
Sarjito
Keyword(s):  
High Temperature ◽  
Combustion Chamber ◽  
Induction Heating ◽  
Steel Substrate ◽  
Intermetallic Phases ◽  
Temperature Synthesis ◽  
Argon Gas ◽  
High Temperature Synthesis

The objective of thiswork was to investigate the microstructure and adhesion of NiAl coating whichformed by self propagation high temperature synthesis (SHS) process. Ni/Almixture and an underlayer material which used Ni and Al were compacted to forma bilayer pellet and subsequently put on a steel substrate. The Ni/Al reactionwas ignited using induction heating in a combustion chamber of argon gas. Themorphology and microstructure of the products were observed using SEM and XRD.The results showed that further reactions between NiAl coating and underlayermaterials formed several intermetallic phases. The role of Al and Ni underlayeron the microstructure, porosity and the adhesion between coating and thesubstrate was observed.

Hardening of metal surface via self-propagating high-temperature synthesis in thin films

2007 ◽  
Vol 43 (4) ◽  
pp. 239-242
Author(s):  
S. Kh. Suleimanov ◽  
O. A. Dudko ◽  
V. G. Dyskin ◽  
Z. S. Settarova ◽  
M. U. Dzhanklych
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Metal Surface ◽  
Temperature Synthesis ◽  
High Temperature Synthesis
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