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Vol.54, No.3, 224 ~ 231, 2016
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| Title |
| Mechanical Property Changes of Zr-1.0Nb Alloy Cladding with Hydrogen Content |
| 나연수 Yeon Soo Na , 최민영 Min Young Choi , 고대균 Dae Gyun Ko , 김윤호 Yoon Ho Kim , 목용균 Yong Kyoon Mok |
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| 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. |
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| Key Words |
| Zr-1.0Nb based alloys, cladding, hydride, mechanical properties, ductility, tensile test |
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