OKAY, Faik Aksaray Üniversitesi - Ortaköy Meslek Yüksekokulu - Teknik Programlar, Turkey , SERT, Hasan Gazi Üniversitesi - Teknik Eğitim Fakültesi, Turkey , HABALI, Kasım Gazi Üniversitesi - Teknik Eğitim Fakültesi, Turkey , GÜL, Ferhat Gazi Üniversitesi - Teknik Egitim Fakültesi, Turkey

EFFECT OF TiN COATING BY PHYSICAL VAPOUR DEPOSITION ON THE WEAR BEHAVIOUR OF AUSTEMPERED DUCTILE IRON

16427

In this study, the effect of TiN coating by physical vapour deposition method on wear behaviour of austempered ductile iron was studied. For this purpose, austenitising at 900°C for 60 min and later austempering at 360 °C for 30 and 90 min was applied to the specimens. After heat treatment, the surfaces of these samples were coated TiN by PVD method. Wear tests were performed on pin-on-disc device under loads of 20 N, 40 N and 60 N, at linear sliding speed of 1m/sec and sliding distance of 1800 m. The experimental results show that pearlitic microstructure of ductile iron turned into ausferritic structure depending on heat treatment conditions. The wear of specimen was reduced 3-4 times by the effect of TiN coating

787

Adhesive wear , austempered ductile iron , TiN coating

Journal Of The Faculty Of Engineering an‎d Architecture Of Gazi University

794