| Title |
Research Paper / Environment : Effects of Fe and Mn Addition on Precipitation and Corrosion Characteristics of Zirconium Alloys |
| Authors |
김현길(H . G . Kim),이명호(M . H . Lee),박상윤(S . Y . Park),정용환(Y . H . Jeong),위명용(M . Y . Wey) |
| Abstract |
In order to Investigate the effects of Fe and Mn on the precipitate and corrosion characteristics of Zr based alloys for nuclear fuel cladding, autoclave corrosion tests on the ternary(Zr-0.8Sn-X) alloys have been carried out at 360℃. The corrosion behavior of Zr-Sn-Fe alloy showed the cubic corrosion rate in the pre-transition region and the linear corrosion rate in the post-transition region. The good corrosion resistance in Zr-Sn-Fe alloy system was observed in Fe contents more than 0.2 wt%. The corrosion behavior of Zr-Sn-Mn alloy was significantly accelerated from the early stage. The lowest weight gain was observed in 0.2 wt% Mn. Based on the precipitate anallysis by TEM, it is thought that the corrosion of Zr-alloys would be related to the size of precipitate. |