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Laser processing of nickel-aluminum bronze for improved surface corrosion properties

Journal Article


Abstract


  • Nickel–aluminum bronze was subjected to laser heating to change the microstructure on the surface for enhanced corrosion performance. To develop the laser processing parameters, a two-phase diffusion model was used to determine the phase transformation kinetics. Also, an analytical laser heating model was employed to determine the laser power setting required to process just below the melting point. The result was that the lamellar κ III phase of the as-cast microstructure was dissolved up to 1.3 mm deep. Electrochemical testing revealed an increase in the corrosion potential and hence improved corrosion resistance for the laser processed surface, supporting the use of this process for enhanced corrosion performance of nickel–aluminum bronze components.

UOW Authors


  •   Cottam, R (external author)
  •   Barry, T (external author)
  •   David McDonald, David (external author)
  •   Li, Hui Jun.
  •   Edwards, D (external author)
  •   Majumdar, A (external author)
  •   Dominguez, J (external author)
  •   Wang, Jing-Ya (external author)
  •   Brandt, Milan (external author)

Publication Date


  • 2013

Citation


  • Cottam, R., Barry, T., McDonald, D., Li, H., Edwards, D., Majumdar, A., Dominguez, J., Wang, J. & Brandt, M. (2013). Laser processing of nickel-aluminum bronze for improved surface corrosion properties. Journal of Laser Applications, 25 (3), 032009-1-032009-7.

Scopus Eid


  • 2-s2.0-84877264760

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1535

Has Global Citation Frequency


Start Page


  • 032009-1

End Page


  • 032009-7

Volume


  • 25

Issue


  • 3

Place Of Publication


  • United States

Abstract


  • Nickel–aluminum bronze was subjected to laser heating to change the microstructure on the surface for enhanced corrosion performance. To develop the laser processing parameters, a two-phase diffusion model was used to determine the phase transformation kinetics. Also, an analytical laser heating model was employed to determine the laser power setting required to process just below the melting point. The result was that the lamellar κ III phase of the as-cast microstructure was dissolved up to 1.3 mm deep. Electrochemical testing revealed an increase in the corrosion potential and hence improved corrosion resistance for the laser processed surface, supporting the use of this process for enhanced corrosion performance of nickel–aluminum bronze components.

UOW Authors


  •   Cottam, R (external author)
  •   Barry, T (external author)
  •   David McDonald, David (external author)
  •   Li, Hui Jun.
  •   Edwards, D (external author)
  •   Majumdar, A (external author)
  •   Dominguez, J (external author)
  •   Wang, Jing-Ya (external author)
  •   Brandt, Milan (external author)

Publication Date


  • 2013

Citation


  • Cottam, R., Barry, T., McDonald, D., Li, H., Edwards, D., Majumdar, A., Dominguez, J., Wang, J. & Brandt, M. (2013). Laser processing of nickel-aluminum bronze for improved surface corrosion properties. Journal of Laser Applications, 25 (3), 032009-1-032009-7.

Scopus Eid


  • 2-s2.0-84877264760

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1535

Has Global Citation Frequency


Start Page


  • 032009-1

End Page


  • 032009-7

Volume


  • 25

Issue


  • 3

Place Of Publication


  • United States