TY - CONF A1 - Taparli, Ugur Alp A1 - Griesche, Axel A1 - Kannengießer, Thomas A1 - Jacobsen, Lars A1 - Michalik, Katarzyna A1 - Mory, David T1 - Time and space resolved in situ LIBS analysis of chemical compositions during TIG welding N2 - The Tungsten Inert Gas (TIG) welding process was combined with a Laser-Induced Breakdown Spectroscopy (LIBS) system for the in situ measurement of chemical compositions in austenitic stainless steels. The main aim of this project was the development of a prototype for a real-time chemical composition analysis system for welding applications. In principle, the measurement of the weld pool composition allows governing the weld pool solidification behaviour by controlling the welding parameters. This control loop allows avoiding weld defects. Chemical compositions of the weld seam is from a metallurgical point of view the most critical parameter for the occurrence of weld defects. Additionally, this new LIBS-based measurement system can be used for the monitoring and controlling of potentially dangerous emissions during the welding process in order to improve the working safety conditions. Preliminary investigations show that the chemical composition measurement of welds with LIBS is possible during and after welding. T2 - Forschungsseminar OvGU Magdeburg CY - Magdeburg, Germany DA - 04.07.2017 KW - Austenitic stainless steels KW - TIG welding KW - LIBS KW - In situ measurements KW - Chemical compositions PY - 2017 AN - OPUS4-40898 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -