Numerical study of the metal vapour transport in tungsten inert-gas welding in argon for stainless steel

Identification of light emitting elements around tungsten electrode during TIG welding using optical emission spectroscopy

“…．溶 接アークプラズマに対して発光分光分析を適用することで， 近年では重ねすみ肉アーク溶接時のガスシールド性 16) やガ スメタルアーク溶接現象に与えるシールドガス組成の影響 17) ，ティグ溶接中の金属蒸気輸送およびそれに伴う電極消耗 メカニズム [18][19][20][21][22][23][24] Table 6 Ionization energies of cerium and thorium 31) .…”

Computational Study of Quenching Effects on Growth Processes and Size Distributions of Silicon Nanoparticles at a Thermal Plasma Tail

“…However, that effect was neglected in the present computation. Recent studies conducted by computation [ 87 , 88 ] and experimentation [ 89 , 90 ] have demonstrated that ion transport by cataphoresis affected the material vapor distribution in and around plasma.…”

Electrode contamination caused by metal vapour transport during tungsten inert gas welding

“…In addition, as depicted in Figure 3, when pure chromium was used, the electrode tip emitted strong light, which suggests that the temperature of the electrode contaminated with chromium vapour was increased. Moreover, results of earlier studies clarified that the metal vapour generated from the weld pool surface was transported to near the electrode tip during argon TIG welding [18, 19]. Therefore, a concern exists that the electrode is similarly contaminated during argon TIG welding.…”