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DOE OSTI · 2999888

An Exploration into Elemental Additions to Tungsten Electrodes

Chavarria, Sebastian Thomas [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]
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Abstract

The scope of this study is to evaluate the arc start capabilities of various tungsten electrode alloys—2% Thoriated, 2% Ceriated, 2% Lanthanated, and a proprietary Tri-Mix WS2 on Stainless Steel 304 and Molybdenum. Each electrode maintained consistent geometry: 0.040" diameter, 2.000" length, and a 0.0010" flat tip with a 40° tip angle. The testing procedure aimed to determine the minimum starting amperage required to achieve 10 consecutive successful arc starts per electrode type.

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Chavarria, Sebastian Thomas [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]. 2025-10-21. An Exploration into Elemental Additions to Tungsten Electrodes. https://doi.org/10.2172/2999888

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