| Title |
Materials Processing : Characterization of Microstructure Texture and Corrosion Properties at Various Manufacturing Steps for Advanced Zr Nuclear Fuel Cladding Tubes |
| Authors |
박정용(Jeong Yong Park); 정용환(Yong Hwan Jeong); 정연호(Youn Ho Jung) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Zr alloys; Corrosion; Microstructure; Texture; Oxide; Manufacturing process |
| Abstract |
Microstructure characterization, texture measurement and evaluation of corrosion properties were performed at various manufacturing steps from TREX to final tube for advanced Zr fuel cladding tubes. From the result of corrosion test in steam at 400℃, it was found that the corrosion behavior at the early stage was highly affected by crystallographic texture and the corrosion resistance increased when (0002) texture normal to the corrosion surface was well developed. However, the effect of texture on the corrosion behavior decreased when oxide thickness increased. It is suggested that the texture of Zr alloy plays an important role in corrosion behavior at the early stage though the corrosion behavior is dominated by oxide characteristics when thick oxide was formed. |