TY - JOUR
T1 - Comparison of electrochemical properties of atmospheric pressure plasma coatings for Al2O3-3TiO2 and CoNiCrAlY in sea water
AU - Kim, Seong Jong
AU - Kim, Seong Kweon
AU - Park, Jae Cheul
PY - 2012/12
Y1 - 2012/12
N2 - To improve the durability of underwater rotating products, the corrosion characteristics in harsh marine environment were evaluated through various electrochemical experiments on the Al2O3-3TiO2 and CoNiCrAlY coating layers by atmospheric pressure plasma spray coating process. By evaluating the corrosion resistance of these materials, their applicability to environmentally friendly power generation equipment such as blades of tidal current turbines was examined. According to the Tafel analysis for micro-areas including the coating layer, the coating/metal interlayer and the base metal, the Al2O3-3TiO2 coating layer and the CoNiCrAlY coating layer show markedly lower corrosion current density than the base metal. The corrosion current density of the CoNiCrAlY coating layer (9.75316×10-8 A/cm2) is about 1.6 times more than that of the Al2O3-3TiO2 coating layer (6.13139×10-8 A/cm2).
AB - To improve the durability of underwater rotating products, the corrosion characteristics in harsh marine environment were evaluated through various electrochemical experiments on the Al2O3-3TiO2 and CoNiCrAlY coating layers by atmospheric pressure plasma spray coating process. By evaluating the corrosion resistance of these materials, their applicability to environmentally friendly power generation equipment such as blades of tidal current turbines was examined. According to the Tafel analysis for micro-areas including the coating layer, the coating/metal interlayer and the base metal, the Al2O3-3TiO2 coating layer and the CoNiCrAlY coating layer show markedly lower corrosion current density than the base metal. The corrosion current density of the CoNiCrAlY coating layer (9.75316×10-8 A/cm2) is about 1.6 times more than that of the Al2O3-3TiO2 coating layer (6.13139×10-8 A/cm2).
KW - AlO-3TiO coating layer
KW - atmospheric pressure plasma spray
KW - CoNiCrAlY coating layer
KW - corrosion characteristics
KW - marine environment
KW - underwater rotating products
UR - http://www.scopus.com/inward/record.url?scp=84873585513&partnerID=8YFLogxK
U2 - 10.1016/S1003-6326(12)61798-1
DO - 10.1016/S1003-6326(12)61798-1
M3 - Article
AN - SCOPUS:84873585513
SN - 1003-6326
VL - 22
SP - s745-s752
JO - Transactions of Nonferrous Metals Society of China (English Edition)
JF - Transactions of Nonferrous Metals Society of China (English Edition)
IS - SUPPL.3
ER -
