Thermal sprayed coatings for hot corrosion protection of exhaust valves in naval diesel engines

2016 ◽  
Vol 295 ◽  
pp. 78-87 ◽  
Author(s):  
L. Baiamonte ◽  
F. Marra ◽  
S. Gazzola ◽  
P. Giovanetto ◽  
C. Bartuli ◽  
...  
Keyword(s):  
Corrosion Protection ◽  
Diesel Engines ◽  
Hot Corrosion ◽  
Exhaust Valves ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

Effect of Laser Fusing on Hot Corrosion Resistance of Nickel Based Self Fluxing Alloy Coating

2006 ◽  
Vol 522-523 ◽  
pp. 385-392
Author(s):  
Yu Li ◽  
Kazumasa Nishio ◽  
Mitsuaki Katoh ◽  
Tomiko Yamaguchi ◽  
Shinji Okamine
Keyword(s):  
Corrosion Resistance ◽  
Hot Corrosion ◽  
Fossil Fuel ◽  
Waste Incineration ◽  
Alloy Coating ◽  
Mixed Salt ◽  
Excellent Corrosion Resistance ◽  
Sprayed Coatings ◽  
Unmelted Particles ◽  
Thermal Sprayed Coatings

The thermal sprayed coatings are widely used in waste incineration boilers and fossil fuel-fired boilers. However, the defects, such as porosity, cracks and unmelted particles, in these coatings are detrimental to corrosion performance. In this study, the nickel based self fluxing alloy coating was fused by YAG laser to improve hot corrosion resistance of the coating. Under appropriate laser parameters, the nonporous, crack-free coating was produced. Hot corrosion test, conducted in the presence of a mixed salt of Na2SO4/NaCl/KCl at 550Гshowed that the modified coating exhibited excellent corrosion resistance compared with the as sprayed and gas fused coatings.

Ultrafast laser micromachining of thermal sprayed coatings for microheaters: design, fabrication and characterization

2004 ◽  
Vol 114 (1) ◽  
pp. 102-111 ◽  
Author(s):  
Tao Tong ◽  
Jinggao Li ◽  
Qing Chen ◽  
Jon P. Longtin ◽  
Szymon Tankiewicz ◽  
...  
Keyword(s):  
Laser Micromachining ◽  
Ultrafast Laser ◽  
Fabrication And Characterization ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

Resistance of zinc thermal sprayed coatings on different corrosive environments

2006 ◽  
Vol 87 (2) ◽  
pp. 401-409 ◽  
Author(s):  
G. Vourlias ◽  
N. Pistofidis ◽  
D. Chaliambalias ◽  
K. Chrissafis ◽  
El. Pavlidou ◽  
...  
Keyword(s):  
Corrosive Environments ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings
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