Laser Welding of Dissimilar Sheath Metals

Abstract:

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

Info:

Periodical:

Materials Science Forum (Volumes 580-582)

Edited by:

Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na

Pages:

493-499

DOI:

10.4028/www.scientific.net/MSF.580-582.493

Citation:

S. S. Kim et al., "Laser Welding of Dissimilar Sheath Metals", Materials Science Forum, Vols. 580-582, pp. 493-499, 2008

Online since:

June 2008

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Price:

$35.00

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