| Title |
Mechanical Property Changes of Zr-1.0Nb Alloy Cladding with Hydrogen Content |
| Authors |
나연수(Yeon Soo Na); 최민영(Min Young Choi); 고대균(Dae Gyun Ko); 김윤호(Yoon Ho Kim); 목용균(Yong Kyoon Mok) |
| DOI |
https://doi.org/10.3365/KJMM.2016.54.3.224 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Zr-1.0Nb based alloys; cladding; hydride; mechanical properties; ductility; tensile test |
| Abstract |
Hydrogen pre-charged Zr-1.0Nb alloy was prepared to study the effect of hydrogen uptake on its mechanical properties. The apparent activation energy of the Zr-1.0Nb alloy for hydriding was about 27 kcal/mol. The tensile strength of the Zr-1.0Nb alloy with a hydrogen content of up to 700 ppm was similar to that of an as-fabricated specimen, in that its elongation was drastically decreased after 400 ppm and became nearly zero above about 1200 ppm. The critical hydrogen content range needed to produce the ductile-brittle transition was above 400 ppm. |