EFFECT OF PULSED ARC IN DEPOSITS WITH ADVANCED DUPLEX STAINLESS STEELS CONSUMABLE

Authors

  • Sebastián Zappa National University of Lomas de Zamora image/svg+xml , National Scientific and Technical Research Council image/svg+xml Author
  • Lucas Maureira National Scientific and Technical Research Council image/svg+xml Author
  • Mónica Zalazar National Scientific and Technical Research Council image/svg+xml Author
  • Estela Surian National University of Comahue image/svg+xml Author

Keywords:

Pulsed Arc, Bead Geometry, Dilution

Abstract

Duplex stainless steels offer an attractive combination of mechanical strength and corrosion resistance (used in the petrochemical industry).

With modern welding processes in pulsed transfer mode (GMAW-P) or with double pulse (GMAW-PP) a more precise control of metal transfer is obtained with lower average current values and consequently a lower heat input, generating less distortion and less microstructural damage to the base materials, compared with the conventional semiautomatic welding process (GMAW).

The objective of this work was to study the effect of the pulsed arc and the double pulse on the geometric  characteristics of the bead, the dilution with the base material, the microstructural evolution and the hardness with a
super duplex stainless steel consumable.

In particular, the selection of pulse parameters that generate an adequate bead geometry to be used as a root pass
was sought.

References

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Published

2019-07-01

Issue

Vol. 4 No. 6 (2019)

Section

Artículos originales

License

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How to Cite

EFFECT OF PULSED ARC IN DEPOSITS WITH ADVANCED DUPLEX STAINLESS STEELS CONSUMABLE. (2019). Journal of Industrial and Mechanical Engineering, 4(6), 14. https://riiym.unlz.edu.ar/article/view/75