TY - JOUR
T1 - Multi-layer coating design architecture for optimum particulate erosion resistance
AU - Borawski, Brian
AU - Singh, Jogender
AU - Todd, Judith A.
AU - Wolfe, Douglas E.
N1 - Funding Information:
This research was sponsored by the United States Navy Manufacturing Technology Program, Office of Naval Research, under Navy Contract N00024-02-D-6604. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the U.S. Navy.
PY - 2011/9/2
Y1 - 2011/9/2
N2 - The hard particle, erosion resistance of multi-layer, magnetron-sputtered, physical vapor deposited (PVD), titanium nitride/titanium (TiN/Ti) coatings for protection of AM355 steel turbine components was investigated. Multi-layer coatings, of 25μm total thickness, were deposited on AM355 substrates with variable numbers and thicknesses (equivalent to volume fractions) of the TiN and Ti layers. The coatings were eroded using glass beads, quartz and alumina media with particle velocities ranging from 75 to 180. m/s. Erosion performance was found to depend strongly on the TiN/Ti PVD coating multi-layer design architecture and the erosion conditions. The results showed that coatings with two layers, one of TiN, and a low volume fraction of metal gave optimal erosion performance against the alumina erodent, whereas coatings with 32 layers, (16 each of TiN and Ti), offered the best erosion performance against the glass beads. These results explain the variability of coating erosion performance described in the literature, and provide guidance in the design of optimal multi-layer coating systems for a range of particle erosion conditions.
AB - The hard particle, erosion resistance of multi-layer, magnetron-sputtered, physical vapor deposited (PVD), titanium nitride/titanium (TiN/Ti) coatings for protection of AM355 steel turbine components was investigated. Multi-layer coatings, of 25μm total thickness, were deposited on AM355 substrates with variable numbers and thicknesses (equivalent to volume fractions) of the TiN and Ti layers. The coatings were eroded using glass beads, quartz and alumina media with particle velocities ranging from 75 to 180. m/s. Erosion performance was found to depend strongly on the TiN/Ti PVD coating multi-layer design architecture and the erosion conditions. The results showed that coatings with two layers, one of TiN, and a low volume fraction of metal gave optimal erosion performance against the alumina erodent, whereas coatings with 32 layers, (16 each of TiN and Ti), offered the best erosion performance against the glass beads. These results explain the variability of coating erosion performance described in the literature, and provide guidance in the design of optimal multi-layer coating systems for a range of particle erosion conditions.
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U2 - 10.1016/j.wear.2011.05.035
DO - 10.1016/j.wear.2011.05.035
M3 - Article
AN - SCOPUS:79961127783
SN - 0043-1648
VL - 271
SP - 2782
EP - 2792
JO - Wear
JF - Wear
IS - 11-12
ER -