S043022 CrN薄膜を被覆したチタン合金のフレッティング疲労特性([S04302]環境調和型の表面改質および薄膜コーティング(2))

概要

論文の詳細を見る
Fretting fatigue tests were performed using titanium alloy with CrN thin film and titanium alloy pad to examine the damage process. Specimen and pad used Ti-6A1-4V alloy. CrN thin films were deposited under two different bias voltages by arc ion plating method in order to obtain the different film hardness and toughness. Damage process of CrN thin film was observed under 10% in number of cycle ratio. Crack commonly occurred under 10% in number of cycle. And then tangential force which occurs to between specimen and pads was measured, too. As a result, transfer wear was observed on the specimens which was coated by lower bias voltage. Abrasive wear was observed on the specimens which were coated by higher bias voltage. CrN film coated by lower bias voltage showed the better performance to prevent crack initiation. Fretting damage which occurred to specimen with CrN thin film was slow than uncoating specimen in early number of cycle ratio.
一般社団法人日本機械学会の論文
2011-09-11