Journal of Materials Engineering and Performance

, Volume 26, Issue 4, pp 1589–1597 | Cite as

Microstructure Characterization and Corrosion Resistance Behavior of New Cobalt-Free Maraging Steel Produced Through ESR Techniques

  • Asiful H. Seikh
  • Hossam Halfa
  • Muneer Baig
  • Sohail M. A. Khan
Article

Abstract

In this study, two different grades (M23 and M29) of cobalt-free low nickel maraging steel have been produced through electroslag remelting (ESR) process. The corrosion resistance of these ESR steels was investigated in 1 M H2SO4 solution using linear potentiodynamic polarization (LPP) and electrochemical impedance spectroscopy (EIS) techniques. The experiments were performed for different immersion time and solution temperature. To evaluate the corrosion resistance of the ESR steels, some significant characterization parameters from LPP and EIS curves were analyzed and compared with that of conventional C250 maraging steel. Irrespective of measurement techniques used, the results show that the corrosion resistance of the ESR steels was higher than the C250 steel. The microstructure of ESR steels was composed of uniform and well-distributed martensite accompanied with little amount of retained austenite in comparison with C250 steel.

Keywords

corrosion resistance electrochemical impedance spectroscopy maraging steels microstructure polarization 

Notes

Acknowledgments

The author extends his appreciation to the Center of Excellence for Research in Engineering Materials (CEREM) of Advanced Manufacturing Institute, King Saud University, Riyadh, Saudi Arabia for funding the work. The steel samples used in this study have been produced and refined at the pilot plant of Steel and Ferroalloys Department, Central Metallurgical Research and Development Institute “CMRDI,” Egypt.

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Copyright information

© ASM International 2017

Authors and Affiliations

  • Asiful H. Seikh
    • 1
  • Hossam Halfa
    • 2
  • Muneer Baig
    • 1
  • Sohail M. A. Khan
    • 3
  1. 1.Centre of Excellence for Research in Engineering Materials, Advanced Manufacturing InstituteKing Saud UniversityRiyadhSaudi Arabia
  2. 2.Steel Technology DepartmentCentral Metallurgical R&D Institute (CMRDI)HelwanEgypt
  3. 3.Mechanical Engineering Department, College of EngineeringKing Saud UniversityRiyadhSaudi Arabia

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