25Apr 2019

THE EFFECT OF AUSTEMPERING HEAT TREATMENTS ON THE MICROSTRUCTURE AND CORROSION BEHAVIOR OF CAST IRON IN 3.5% SODIUM CHLORIDE SOLUTION.

  • Central Metallurgical Research and Development Institute (CMRDI), Tepen, Cairo, Egypt.
  • Chemistry Department, Faculty of Science (Girls), Al-Azhar University, Nasr City, Cairo, Egypt.
Crossref Cited-by Linking logo

  • Abstract
  • Keywords
  • References
  • Cite This Article as
  • Corresponding Author

Background: Austempered ductile iron (ADI) is an interesting class of materials because of their unique microstructure containing a multiphase matrix (called ausferrite), graphite spheres and oxide inclusions, the need to investigate the effect of austempering heat treatment on corrosion behavior of it. Results: The outcomes demonstrated that heat treatment is very powerful method for improving the corrosion resistance of ductile cast iron. Since the microstructure of the heat treated samples was austempered ferrite. Conclusions: The corrosion resistance of ADI heat treated at (375?C) is higher than ADI heat treated at (325?C) because the microstructural modifications induced by austempering at 375?C which results to a greater coarsening of the austenite grain and broad ferrite needles.

  1. Cheng-Hsun H., Jung-Kai L., Kuei-Liang L. and Ming-Lichen C. (2005), Materials Transactions, vol. 46, No. 6, 1417-1424.
  2. Kaczorowski M. and Krzyńska A. (2007), Archives of foundry engineering, vol. 7, pp. 161-166.
  3. Cheng-Hsun H., Ming-Lichen (2010), Corrosion behavior of nickel alloyed and austempered ductile irons in 3.5% sodium chloride, Corrosion Science, vol. 52, 2945-2949.
  4. Nofal A. (2013), Journal of Metallurgical Engineering, vol. 2.
  5. Krawiec H., Lelito J., Tyrała E. and Banaś J. (2009), J. Solid State Electrochem., 13, pp. 935?942,DOI 10.1007/s10008-008-0636-x.
  6. Sahoo S. (2012), A Study On The Effect Of Austempering Temperature, Time and Copper Addition On The Mechanical Properties Of Austempered Ductile Iron, Master Thesis, National Institute Of Technology, Rourkela.
  7. Swain S., Panda R., Dhal J., Mishra S. and Sen S.(2012), Orissa Journal of Physics, Vol. 19, No.1, pp. 73-80.
  8. Cekic O., Sidjanin L., Rajnovic D. Balos and S. (2014), Met. Mater. Int., Vol. 20, 6, pp. 1131-1138, doi: 10.1007/s12540-014-6017-3.
  9. Janjic M., Avdusinovic H., Jurkovic Z., Bikic F. and Savicevic S. (2016), Metalurgija, Vol. 55, No.3, pp. 325-328.
  10. Banerjee S. (2012), Effect of Chemistry on the Transformation of Austenite to Martensite for Intercritically Austempered Ductile Iron.
  11. Benam A. (2015), Overseas Foundry, vol.12, pp. 54-70.
  12. Afolabi A.S. (2011), Effect of austempering temperature and time on corrosion behavior of ductile iron in chloride and acidic media, Anti-Corrosion Methods and Materials, vol. 58, pp. 190-195.

[A.A. Nofal, Amal S. I. Ahmed, W. A. Ghanem, W. A. Hussein and N. K. El-dabaa. (2019); THE EFFECT OF AUSTEMPERING HEAT TREATMENTS ON THE MICROSTRUCTURE AND CORROSION BEHAVIOR OF CAST IRON IN 3.5% SODIUM CHLORIDE SOLUTION. Int. J. of Adv. Res. 7 (Apr). 1551-1558] (ISSN 2320-5407). www.journalijar.com

Nanis Kamal eldabaa
AlAZhar university

DOI:

Article DOI: 10.21474/IJAR01/8982      
DOI URL: https://dx.doi.org/10.21474/IJAR01/8982

Download Full Paper

Download PDF No. of Downloads: 19 | No. of Views: 68