Microstructure and mechanical behavior of a CO2 laser and TIG welded 904L steel

Authors

  • Barbara Nasiłowska Military University of Technology, Faculty of Mechanical Engineering
  • Zdzisław Bogdanowicz Military University of Technology, Faculty of Mechanical Engineering
  • Paweł Jóźwik Military University of Technology, Faculty of Advanced Technology and Chemistry

DOI:

https://doi.org/10.7494/mafe.2014.40.2.69

Keywords:

steel 904L, welding TIG, laser

Abstract

The paper presents the analysis of structural research, micro-hardness and mechanical properties of the base material which is steel 904 L and joints made with CO2 laser beam and TIG method. The analysis of the equilibrium system created in the Thermo-Calc programme based on chemical composition shows a dominancy of austenite with of Feα additions, phase σ, P and Laves' and M23C6 and Cr9Mo21Ni20 carbides. EBSD (Electron backscatter diffraction) research done by using electron scanning microscope confirmed the presence of pure austenite.

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Author Biographies

Barbara Nasiłowska, Military University of Technology, Faculty of Mechanical Engineering

M. Sc. Eng.

Zdzisław Bogdanowicz, Military University of Technology, Faculty of Mechanical Engineering

Ph. D. Eng.

Paweł Jóźwik, Military University of Technology, Faculty of Advanced Technology and Chemistry

Ph. D.  Eng.

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Published

2014-11-18

How to Cite

Nasiłowska, B., Bogdanowicz, Z., & Jóźwik, P. (2014). Microstructure and mechanical behavior of a CO2 laser and TIG welded 904L steel. Metallurgy and Foundry Engineering, 40(2), 69. https://doi.org/10.7494/mafe.2014.40.2.69

Issue

Vol. 40 No. 2 (2014)

Section

Articles

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