Effect of microstructure on corrosion behavior of dual-phase steels

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SALAMCİ E., CANDAN Ş., Kabakci F.

Kovove Materialy, cilt.55, sa.2, ss.133-139, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.4149/km_2017_2_133
  • Dergi Adı: Kovove Materialy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.133-139
  • Anahtar Kelimeler: Corrosion, Dual-phase steel, Epitaxial ferrite, Martensite
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

© 2017 Institute of Materials and Machine Mechanics, Slovak Academy of Sciences. All rights reserved.Dual phase (DP) steels with different volume fractions of martensite and epitaxial ferrite were produced in different intercritical annealing temperatures and cooling rates. Corrosion behaviors of four different DP steels were investigated in 3.5 % NaCl solution by using potentiodynamic polarization and immersion tests. The results showed that both amounts of martensite and epitaxial ferrite have an influence on the corrosion behavior of DP steels. It was observed that corrosion resistance increased considerably with the presence of epitaxial ferrite as compared to dual phase steel containing non-epitaxial ferrite. On the other hand, the corrosion resistance of DP steels decreased with an increase in the martensite volume fraction (MVF).