High Temperature Corrosion in Molten Salts

2003 ◽  
Author(s):  
César A.C. Sequeira
Keyword(s):  
High Temperature ◽  
Molten Salts ◽  
High Temperature Corrosion

Electrochemical Studies on High-Temperature Corrosion of Silicon-Iron Coatings and Iron Aluminide Intermetallic Alloys by Molten Salts

CORROSION ◽  
2001 ◽  
Vol 57 (6) ◽  
pp. 489-496 ◽  
Author(s):  
M. Amaya ◽  
J. Porcayo-Calderon ◽  
L. Martinez
Keyword(s):  
High Temperature ◽  
Molten Salt ◽  
Electric Power ◽  
Molten Salts ◽  
Corrosion Current ◽  
High Temperature Corrosion ◽  
Iron Aluminide ◽  
Fuel Oil ◽  
Silicon Iron ◽  
Salt Corrosion

Abstract The performance of Fe-Si coatings and an iron aluminide (FeAl) intermetallic alloy (FeAl40at%+0.1at%B+10vol%Al2O3) in molten salts containing vanadium pentoxide (V2O5) and sodium sulfate (Na2SO4) is reported. Corrosion and fouling by ash deposits containing V2O5 and Na2SO4 are typical corrosion problems in fuel oil-fired electric power units. High-temperature corrosion tests were performed using both electrochemical polarization and immersion techniques. The temperature interval of this study was 600°C to 900°C, and the molten salts were 80wt%V2O5-20wt%Na2SO4. Curves of corrosion current density vs temperature obtained by the potentiodynamic studies are reported, as well as the weight loss vs temperature curves from molten salt immersion tests. Both Fe-Si coatings and FeAl40at%+0.1at%B+10vol%Al2O3 showed good behavior against molten salt corrosion. The final results show the potential of these coatings and alloys to solve the high-temperature corrosion in fuel oil-fired electric power units.

High-temperature corrosion behaviour of metal alloys in commercial molten salts

Solar Energy ◽  
2020 ◽  
Vol 201 ◽  
pp. 437-452
Author(s):  
Anabel Palacios ◽  
Maria Elena Navarro ◽  
Zhu Jiang ◽  
Aina Avila ◽  
Geng Qiao ◽  
...  
Keyword(s):  
High Temperature ◽  
Molten Salts ◽  
Corrosion Behaviour ◽  
High Temperature Corrosion ◽  
Metal Alloys

High temperature corrosion performance of FeAl intermetallic alloys in molten salts

2003 ◽  
Vol 349 (1-2) ◽  
pp. 12-19 ◽  
Author(s):  
M. Amaya ◽  
M.A. Espinosa-Medina ◽  
J. Porcayo-Calderon ◽  
L. Martinez ◽  
J.G. Gonzalez-Rodriguez
Keyword(s):  
High Temperature ◽  
Molten Salts ◽  
High Temperature Corrosion ◽  
Intermetallic Alloys ◽  
Corrosion Performance
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