Electrochemical investigation of the effect of different laser surface treatments on Hastelloy G alloy


Toor I. H. , Yilbas B. S. , KARATAŞ C. , Hussein M. A. , Zafar M. N.

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, cilt.104, sa.10, ss.1007-1012, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 104 Konu: 10
  • Basım Tarihi: 2013
  • Doi Numarası: 10.3139/146.110947
  • Dergi Adı: INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
  • Sayfa Sayıları: ss.1007-1012

Özet

In the present study, the corrosion resistance behavior of untreated and laser treated Hastelloy was examined. The electrochemical tests including potentiodynamic polarization, Tafel analysis, and linear polarization resistance were carried out in deaerated 0.5 % NaCl aqueous solution at room temperature. Surface roughness was measured to correlate it with corrosion resistance properties of the materials. Surface morphology of the samples after corrosion tests was examined using scanning electron microscopy and energy dispersive X-ray spectroscopy. Results showed that laser treated surface exhibited better corrosion resistance properties as compared to untreated surface.