Author(s)

K. Tokaji, T. Ogawa, J.U. Hwang, Y. Kobayash & Y. Harada

Abstract

Rotary bending fatigue tests have been conducted at room temperature in 3%NaCl solution using specimens of a medium carbon steel (S45C) sprayed different coatings of a ceramic (C^Oa), cermet (WC-12%Co) and metals (Ni-ll%P and Al-2%Zn). Based on detailed observations of the fracture process, the role of sprayed coatings and the fracture mechanisms are dis- cussed. 1 Introduction Hard coatings can enhance the resistance of metal alloys to wear, oxida- tion, thermal exposure and corrosion. Of several surface coating techniques, plasma-spraying has many advantages, i.e. it is applicable to any material system and component shape. In engineering appl

Keywords