| Title |
Influence of Manufacturing Process on the Corrosion and Mechanical Properties of Zr - Fe - Cu Advanced Zirconium Alloy |
| Authors |
김정민(Jeong Min Kim),정형식(Hyung Sik Chung) |
| Abstract |
Effects of cold working and final aging on the corrosion resistance of Zr-1Fe-0.2Cu alloy were investigated. Microhardness tests were conducted for all heat-treated specimens and tensile tests were also carried out for some selected samples. Corrosion resistance was observed to be degraded by the introduction of cold rolling conducted before aging probably due to the promotion of precipitate formation. The corrosion resistance was also decreased during aging mainly because the size of precipitate was increased. The microstructure of heat-treated samples was investigated using SEM and TEM. And, from EDS and SADP analyses only one kind of precipitate, Zr₃Fe, was identified to exist in the heat-treated samples. The short final aging at a high temperature (580℃) was thought to be desirable for the mechanical properties. |