Laser Welding of Dissimilar Sheath Metals

Soo Sung Kim; Geun Il Park; Jin Hyun Koh

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

Paper Titles

Numerical Analysis of Distortion of a Laser Welded Thin Metal Structure
p.475

Fiber Laser Welding of Noncombustible Magnesium Alloy
p.479

Welding Characteristic of Super Alloys for Nd:YAG Laser
p.483

A Comparison of Weld Properties with or without Filler Wire on Laser Welding of Magnesium Alloy for Car Industry
p.489

Laser Welding of Dissimilar Sheath Metals
p.493

Corrosion Monitoring Characteristics of Plasma RF Sputtered Mg Thin Films under Cyclic Wet-Dry Conditions
p.499

Laser-Based Fe-36%Ni (Invar®) Alloy Processing with Deep Microgrooves in Aqueous Solutions
p.503

Development of a LASER Welding Apparatus and a Method for an Inner-Strap Welding of a Spacer Grid Assembly for a PWR Fuel Assembly
p.507

Development of Remote Welding System Using Fiber Laser
p.511

HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Laser Welding of Dissimilar Sheath Metals

Laser Welding of Dissimilar Sheath Metals

Abstract:

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.