Experimental Study on the Wear Behavior of Nuclear Fuel Rod in High Temperature Water Environment
In this study, the variation of spring characteristics with increasing temperature was examined and the effect of their variations on the wear behavior of a nuclear fuel rod in both room and high temperature (300°C) water conditions was evaluated. From the results of the load-displacement tests, the spring stiffness was remarkably varied with increasing temperature. The results of the wear tests indicated that the wear damages are decreased at high temperature water when compared with the room temperature result. These results indicated that the removal mechanisms of wear debris at high temperature water are dependent on not only the formation of the wear particle layer but also on the changed contact conditions such as the contact length or area due to the stiffness drops.
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Y. H. Lee et al., "Experimental Study on the Wear Behavior of Nuclear Fuel Rod in High Temperature Water Environment ", Key Engineering Materials, Vols. 297-300, pp. 1395-1400, 2005