TY - JOUR
T1 - Abrasive, hydroabrasive, and erosion wear behaviour of nanostructured (Ti,Al)N-Cu and (Ti,Al)N-Ni coatings
AU - Belov, D. S.
AU - Blinkov, I. V.
AU - Sergevnin, V. S.
AU - Smirnov, N. I.
AU - Volkhonskii, A. O.
AU - Bondarev, A. V.
AU - Lobova, T. A.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/3/25
Y1 - 2018/3/25
N2 - In this work, the wear resistance and fracture characteristics of (Ti,Al)N-Cu, (Ti,Al)N-Ni, and (Ti,Al)N coatings deposited onto a carbide substrate by the filtered cathodic vacuum arc deposition method were investigated comparatively under various loading and friction conditions. The (Ti,Al)N-Cu and (Ti,Al)N-Ni metal-ceramic coatings showed an equiaxial structure with a ceramic phase grain size of about 15–20 nm. The coatings showed a hardness of about 50 GPa and maintained their fracture toughness (the relative work of plastic deformation was ~65%). The (Ti,Al)N ceramic coating showed a columnar structure having elements with a diameter of about 120 nm. This coating exhibited a hardness of about 27 GPa and was characterized by a significantly lower fracture toughness (the relative work of plastic deformation was ~45%). The tribological properties of these coatings were examined at 20 and 500 °C. It was found that the metal-ceramic coatings showed significantly lower friction coefficient values (~0.56 and 0.61) than the ceramic coatings (~0.68 and 0.70). The fracture pattern of the metal-ceramic coatings was obtained by simulating their abrasive wear during a scratch test. Complete abrasion of the coatings was not observed until 90 N. Under similar tests, the (Ti,Al) N coating showed adhesive destruction by the separation of large fragments from the substrate. Complete coating wear was observed at a load of ~70 N. The erosion of the coatings during hydroabrasive treatment under multicycle impact loading was investigated. It was found that the nanostructured (Ti,Al) N-Cu and (Ti,Al)N-Ni coatings were 1.5 and 2 times less susceptible to wear than the (Ti,Al) N coating, respectively. The wear characteristics of the coatings were analysed on the basis of their structures and physical and mechanical properties, including their H/E and H3/E2 parameters, which denote the resistance of a material to elastic and plastic deformation respectively.
AB - In this work, the wear resistance and fracture characteristics of (Ti,Al)N-Cu, (Ti,Al)N-Ni, and (Ti,Al)N coatings deposited onto a carbide substrate by the filtered cathodic vacuum arc deposition method were investigated comparatively under various loading and friction conditions. The (Ti,Al)N-Cu and (Ti,Al)N-Ni metal-ceramic coatings showed an equiaxial structure with a ceramic phase grain size of about 15–20 nm. The coatings showed a hardness of about 50 GPa and maintained their fracture toughness (the relative work of plastic deformation was ~65%). The (Ti,Al)N ceramic coating showed a columnar structure having elements with a diameter of about 120 nm. This coating exhibited a hardness of about 27 GPa and was characterized by a significantly lower fracture toughness (the relative work of plastic deformation was ~45%). The tribological properties of these coatings were examined at 20 and 500 °C. It was found that the metal-ceramic coatings showed significantly lower friction coefficient values (~0.56 and 0.61) than the ceramic coatings (~0.68 and 0.70). The fracture pattern of the metal-ceramic coatings was obtained by simulating their abrasive wear during a scratch test. Complete abrasion of the coatings was not observed until 90 N. Under similar tests, the (Ti,Al) N coating showed adhesive destruction by the separation of large fragments from the substrate. Complete coating wear was observed at a load of ~70 N. The erosion of the coatings during hydroabrasive treatment under multicycle impact loading was investigated. It was found that the nanostructured (Ti,Al) N-Cu and (Ti,Al)N-Ni coatings were 1.5 and 2 times less susceptible to wear than the (Ti,Al) N coating, respectively. The wear characteristics of the coatings were analysed on the basis of their structures and physical and mechanical properties, including their H/E and H3/E2 parameters, which denote the resistance of a material to elastic and plastic deformation respectively.
KW - Coating
KW - Erosion
KW - Hydroabrasive
KW - Metal ceramic
KW - Nanostructure
KW - Wear
UR - http://www.scopus.com/inward/record.url?scp=85041480062&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2018.01.066
DO - 10.1016/j.surfcoat.2018.01.066
M3 - Article
AN - SCOPUS:85041480062
SN - 0257-8972
VL - 338
SP - 1
EP - 13
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -