In situ investigation of chemical composition during TIG welding in duplex stainless steels using Laser-Induced Breakdown Spectroscopy (LIBS)

Forces in Mechanics

Axel Griesche¹  Thomas Kannengiesser²  Lukas Quackatz³ 

[1] 9.4 Weld Mechanics, Federal Institute for Materials Research and Testing, Unter den Eichen 87, Berlin 12205, Germany;9.4 Weld Mechanics, Federal Institute for Materials Research and Testing, Unter den Eichen 87, Berlin 12205, Germany;Corresponding author.;

关键词: LIBS;    TIG welding;    Duplex stainless steels;    In situ measurement;    WRC-1992-diagram;   

DOI  :  

来源: DOAJ

【 摘 要 】

Many applications in industry require a material-to-material joining process of Duplex Stainless Steels (DSS). Therefore, it is essential to investigate the material's properties during a welding process to control the weld quality. With the help of Laser-Induced Breakdown Spectroscopy (LIBS), the chemical composition during the Tungsten Inert Gas (TIG) welding process of DSS could be monitored in situ. The chemical composition could be quantitatively measured using pre-established calibration curves. Although the surface temperature and the welding plasma have a high influence on the spectral intensities, reliable composition measurements were possible. The concentration of alloying elements could be mapped during the TIG welding process.

【 授权许可】

Unknown