3409 723K環境における蒸気タービン翼コーティング材の耐エロージョンおよび疲労特性評価(S16-3 皮膜の磨耗および残留応力特性(1),S16 コーティング材料の皮膜特性とその評価)
詳細
Turbine blades operated at high temperature environments recently tend to suffer severe damage due to oxidation and erosion caused by iron oxide particles. New development and evaluation of high performance coating materials is indispensable in order to achieve long term operation and high quality maintenance. A coating material which consisted of substrate material of SUS410J1 steel and double layers of plasma nitride and chromium nitride was prepared. The tests of solid particles erosion, single particle impact and fatigue were performed under respective environmental conditions at room temperature and 723K. It was concluded that the coating material tested in this study showed high resistance to erosion and fatigue at a temperature of 723K as same as a virtual one on the turbines.
