Welding Electrode Analysis with Bruker S1 TITAN Series XRF Analyzers

Gas Tungsten Arc Welding (GTAW) electrodes are made out of different materials depending on their application. While tungsten is the base material, there are many combinations of other elements alloyed with tungsten that account for the properties of an electrode. Typical elements alloyed with tungsten to make electrode rods are zirconium, thorium, lanthanum, cerium, and other various rare earth elements. The electrodes are called zirconiated, thoriated, lanthanated, ceriated, and rare earth electrodes, respectively. There are also pure tungsten electrodes. Choosing the proper electrode rod for your application depends on the composition and thickness of the base material, as well as on the type of current used. For example, ceriated tungsten electrodes are best for welding stainless and carbon steels, nickel alloys, and titanium alloys; pure tungsten electrodes, on the other hand, are excellent for AC welding of magnesium and aluminum. Contact Bruker today to find out how our tools can ensure that you have the correct electrode in your hand every time!

In order to produce the expected results—a high-quality, long-lasting weld—it is essential to use the correct type of welding electrode. Rods that are not actually of the composition noted on their labeling, rods with the wrong element added, or rods with the incorrect amount of the additive element will likely produce results that are far from ideal or expected. An electrode that is subject to a materials mix-up or is out of spec can damage the base metal/component that is being welded, which leads to wasted materials, lost production time, lost profits, and expensive rework.

The Bruker S1 TITAN Series Handheld XRF Analyzer for Detection of Low Concentrations of Additive Elements in Tungsten Welding Electrodes

The Bruker S1 TITAN series of handheld XRF analyzers are the ideal tool for the analysis of low concentrations of zirconium, thorium, lanthanum, cerium, and yttrium in tungsten. The TITAN series features fast, light-weight, highly accurate, handheld elemental analysis instruments that work on the basis of x-ray fluorescence technology (XRF). Quantitative analysis of welding electrodes can be done anywhere: at the supplier site, upon receipt of material, in inventory, etc. Full quantitative composition is achieved in less than 30 seconds, allowing you to perform 100% PMI (positive material identification) on all welding electrodes. Guarantee that you use the right electrode every time with the Bruker S1 TITAN series!


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