TY - JOUR
T1 - Monolayer TiAlN and multilayer TiAlN/CrN PVD coatings as surface modifiers to mitigate fretting fatigue of AISI P20 steel
AU - Ibrahim, Raafat
AU - Rahmat, Mohamed
AU - Hashemi Oskouei, Reza
AU - Singh, Raman
PY - 2015/3/1
Y1 - 2015/3/1
N2 - In many sense, the role of a corrosion film and a surface coating in fatigue crack initiation is similar. The performance of the TiAlN and TiAlN/CrN PVD coatings in resisting fretting fatigue failure of the AISI P20 steel was investigated. A significant increase in fretting fatigue life was observed; up to 210% and 193% when clamped at 5.6kN and 12.6kN, respectively for the TiAlN coated specimens, and up to 798% and 762% when clamped at 5.6kN and 12.6kN, respectively for the multilayer TiAlN/CrN coated specimens. Both PVD coatings showed a beneficial compressive residual stress and substantial increases in its resistance to plastic deformation (H3/E2) as well as surface hardness compared to the uncoated AISI P20 tool steel.
AB - In many sense, the role of a corrosion film and a surface coating in fatigue crack initiation is similar. The performance of the TiAlN and TiAlN/CrN PVD coatings in resisting fretting fatigue failure of the AISI P20 steel was investigated. A significant increase in fretting fatigue life was observed; up to 210% and 193% when clamped at 5.6kN and 12.6kN, respectively for the TiAlN coated specimens, and up to 798% and 762% when clamped at 5.6kN and 12.6kN, respectively for the multilayer TiAlN/CrN coated specimens. Both PVD coatings showed a beneficial compressive residual stress and substantial increases in its resistance to plastic deformation (H3/E2) as well as surface hardness compared to the uncoated AISI P20 tool steel.
KW - Fretting fatigue
KW - PVD coatings
KW - Tool steels
UR - http://www.scopus.com/inward/record.url?scp=84939977661&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2015.01.009
DO - 10.1016/j.engfracmech.2015.01.009
M3 - Article
VL - 137
SP - 64
EP - 78
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
ER -