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JWJ > Volume 23(6); 2005 > Article
Journal of KWJS 2005 December;23(6) :43-48.
Published online January 26, 2006.
Laser Welding of Seal Tube for Instrumented Irradiation Fuel Test
Soo-Sung Kim, Chul-Yong Lee, Woong-Ki Kim, Geun-Il Park, Jinh-Yun Koh, Jun-Seok Seo





Correspondence:   Published online January 26, 2006
ABSTRACT
This work was carried out to obtain sound welds and to select a most suitable binary metal joint among three different dissimilar binary metal combinations such as Zr-4/Ta, Mo/Ta and Ti/Ta(seal tube/sensor sheath) joints for the instrumented nuclear fuel irradiation test. To do this, Taguchi experimental method was employed to optimize the experimental data. In addition, metallography, micro-focus x-ray radiography and hardness test were conducted to examine the welds. From the weld bead appearance, penetration depth and bead width as well as weld defects standpoint, Zr-4/Ta joint is suggested for the circumferential joining between a seal tube and a sensor sheath. The optimized welding parameters based on Zr-4/Ta joint are suggested as well.
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