TY - GEN
T1 - High temperature erosion mechanisms and erosion rate of hard coatings for surface recovery of heavy-fuel engines
AU - Miranda, Javier
AU - Bejarano, Lorena
AU - Valarezo, Alfredo
N1 - Publisher Copyright:
© 2018 ASM International® All rights reserved.
PY - 2018
Y1 - 2018
N2 - This study aims at evaluating the erosion resistance at temperature of several hard coatings, including: CrC-NiCr by HVOF, Fe-based alloy by Arc Spray, NiCrBSiFe by powder flame spraying. These coatings are to be used for the recovery of highly eroded walls (above 10 mm thickness) of gray cast iron in the exhaust ducts in heavy-fuel engines. The erosion test consists of erosive particles thrown through a high temperature gas jet, for 5 cycles of 5 minutes, according to ASTM G211-14 (modified). Coated samples are subjected to a fuel gas-torch reaching a front temperature of 450°C and a back temperature of 90°C (water cooled), simulating the actual application. The eroded samples are characterized using EDS, and SEM. The results show the erosion rate of each material/system, and their corresponding erosion mechanisms. Thus, the results allows for the selection of an optimum coating for this surface recovery application.
AB - This study aims at evaluating the erosion resistance at temperature of several hard coatings, including: CrC-NiCr by HVOF, Fe-based alloy by Arc Spray, NiCrBSiFe by powder flame spraying. These coatings are to be used for the recovery of highly eroded walls (above 10 mm thickness) of gray cast iron in the exhaust ducts in heavy-fuel engines. The erosion test consists of erosive particles thrown through a high temperature gas jet, for 5 cycles of 5 minutes, according to ASTM G211-14 (modified). Coated samples are subjected to a fuel gas-torch reaching a front temperature of 450°C and a back temperature of 90°C (water cooled), simulating the actual application. The eroded samples are characterized using EDS, and SEM. The results show the erosion rate of each material/system, and their corresponding erosion mechanisms. Thus, the results allows for the selection of an optimum coating for this surface recovery application.
UR - https://www.scopus.com/pages/publications/85068920956
M3 - Contribución a la conferencia
AN - SCOPUS:85068920956
T3 - Proceedings of the International Thermal Spray Conference
SP - 561
EP - 567
BT - ASM International - International Thermal Spray Conference, ITSC 2018
A2 - Azarmi, Fardad
A2 - Eden, Timothy
A2 - Li, Hua
A2 - Toma, Filofteia-Laura
A2 - Balani, Kantesh
A2 - Hussain, Tanvir
A2 - Shinoda, Kentaro
PB - ASM International
T2 - International Thermal Spray Conference, ITSC 2018
Y2 - 7 May 2018 through 10 May 2018
ER -