In nuclear power plant, fretting wear can make serious problems caused by impact motion between U-tubes and support structures located in steam generators. In order to guarantee the reliability of the steam generator, the damage due to the fretting we...
In nuclear power plant, fretting wear can make serious problems caused by impact motion between U-tubes and support structures located in steam generators. In order to guarantee the reliability of the steam generator, the damage due to the fretting wear should be throughly investigated. The purpose of this study is to elucidate fretting wear mechanism qualitatively and quantitatively. Hence, fretting wear simulation is performed according to the environment to which the actual steam generators in nuclear power plant are exposed. Initial experimental results are obtained for various experimental parameters and the effect of work rate and temperature on fretting wear is evaluated.