INVESTIGATION OF THE EFFECT OF THERMOMECHANICAL PROCESSING ON MICROSTRUCTURE AND CORROSION RESISTANCE OF 321 AUSTENITIC STAINLESS STEEL

Authors

Department of Material Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran

Abstract

In this study, microstructural changes in the thermomechanical processing and its effect on the corrosion behavior of 321 austenitic stainless steel were investigated. EDS analysis and optical microscopy were used to identify precipitates and microstructure, respectively. To evaluate the corrosion properties, potentiodynamic polarization test and electrochemical impedance spectroscopy were performed. First, the as-received sample was subjected to cold rolling with a 90% thickness reduction at liquid nitrogen temperature, and then annealing was performed at temperatures of 750, 850, and 1050 °C for 10 min. The results showed that severe cold rolling slightly improved the corrosion properties and in annealed samples, the corrosion resistance increased with more uniform microstructure, more reversion of martensite phase to austenite, and reduction of grain size. Annealed samples at 850 °C and 1050 °C with polarization resistance values of 8.200 kΩ.cm2 and 3.800 kΩ.cm2 depicted the highest and lowest corrosion resistance compared to other samples, respectively.

Keywords

References

1. Nezakat, M., Akhani, H., Hoseini, M., and Szpunar, J., “Effect of Thermo-Mechanical Processing on Texture Evolution in Austenitic Stainless Steel 316L”. Materials Characterization, Vol. 98, pp. 10-17, 2014.
2. Tiamiyu, A., Eduok, U., Szpunar, J., and Odeshi, A. G., “Corrosion Behavior of Metastable AISI 321 Austenitic Stainless Steel: Investigating the Effect of Grain Size and Prior Plastic Deformation on Its Degradation Pattern in Saline Media”. Scientific Reports, Vol. 9, pp. 1-18, 2019.
3. Padilha, A. F., Plaut, R. L., and Rios, P. R., “Annealing of Cold-Worked Austenitic Stainless Steels”. ISIJ International, Vol. 43, pp. 135-143, 2003.
4. Zhao, J., and Jiang, Z., “Thermomechanical Processing of Advanced High Strength Steels”, Progress in Materials Science, Vol. 94, pp. 174-242, 2018.
5. Nezakat, M., Akhani, H., Sabet, S. M., and Szpunar, J., “Electron Backscatter and X-Ray Diffraction Studies on the Deformation and Annealing Textures of Austenitic Stainless Steel 310S”. Materials Characterization, Vol. 123, pp. 115-127, 2017.
6. Krawczynska, A.T., Chrominski, W., Binczyk, E. U., Kulczyk, M., and Lewandowska, M., “Mechanical Properties and Corrosion Resistance of Ultrafine Grained Austenitic Stainless Steel Processed by Hydrostatic Extrusion”, Materials & Design, Vol. 136, pp. 34-44, 2017.
7. Eskandari, M., Yeganeh, M., and Motamedi, M., “Investigation in the Corrosion Behaviour of Bulk Nanocrystalline 316L Austenitic Stainless Steel in NaCl Solution”, Micro & Nano Letters, Vol. 7, pp. 380-383, 2012.
8. Ye, W., Li, Y., and Wang, F., “Effects of Nanocrystallization on the Corrosion Behavior of 309 Stainless Steel”. Electrochimica Acta, Vol. 51, pp. 4426-4432, 2006.
9. Lv, Y., Luo, H., Tang, J., Guo, J., Pi, J., and Ye, K., “Corrosion Properties of Phase Reversion Induced Nano/Ultrafine Grained AISI 304 Metastable Austenite Stainless Steel”. Materials Research Bulletin, Vol. 107, pp. 421-429, 2018.
10. Jinlong, L., and Hongyun, L., “Comparison of Corrosion Properties of Passive Films Formed on Phase Reversion Induced Nano/Ultrafine-Grained 321 Stainless Steel”, Applied Surface Science, Vol. 280, pp. 124-131, 2013.
11. Aghuy, A. A., Zakeri, M., Moayed, M. H., and Mazinani, M., “Effect of Grain Size on Pitting Corrosion of 304L Austenitic Stainless Steel”, Corrosion Science, Vol. 94, pp. 368-376, 2015.
12. H. Fisher, Feritscope® MP30: Measurement of the Ferrite Content in Austenitic and Duplex Steel, Sindelfingen, Helmut Fischer, 2010.
13. Talonen, J., Hänninen, H., Nenonen, P., and Pape, G., “Effect of Strain Rate on the Strain-Induced γ→ α′-Martensite Transformation and Mechanical Properties of Austenitic Stainless Steels”, Metallurgical and Materials Transactions A, Vol. 36, pp. 421-432, 2005.
14. Tiamiyu, A., Szpunar, J., Odeshi, A. G., Oguocha, I., and Eskandari, M., “Development of Ultra-Fine-Grained Structure in AISI 321 Austenitic Stainless Steel”, Metallurgical and Materials Transactions A, Vol. 48, pp. 5990-6012, 2017.
15. Tiamiyu, A., Odeshi, A. G., and Szpunar, J., “Austenitic Reversion of Cryo-Rolled Ti-Stabilized Austenitic Stainless Steel: High-Resolution EBSD Investigation”, Materials Engineering and Performance, Vol. 27, pp. 889-904, 2018.
16. Salehi, M., Eskandari, M., and Yeganeh, M., “Investigation of Microstructural Changes and Texture of 321 Austenitic Stainless Steel After Cold Rolling”, 3rd National Conference on Materials Engineering, Metallurgy and Mining, Iran, 2020.
17. Rezaei, H., Ghazani, M. S., and Eghbali, B., “Effect of Post Deformation Annealing on the Microstructure and Mechanical Properties of Cold Rolled AISI 321 Austenitic Stainless Steel”, Materials Science and Engineering: A, Vol. 736, pp. 364-374, 2018.
18. Gui, L., Long, M., Zhang, H., Chen, D., Liu, S., Wang, Q., and Duan, H., “Study on the Precipitation and Coarsening of TiN Inclusions in Ti-Microalloyed Steel by a Modified Coupling Model”, Journal of Materials Research and Technology, Vol. 9, pp. 5499-5514, 2020.
19. Mandal, S., Singh, J. K., Lee, D. E., and Park, T., “Effect of Phosphate-Based Inhibitor on Corrosion Kinetics and Mechanism for Formation of Passive Film onto the Steel Rebar in Chloride-Containing Pore Solution”, Materials, Vol. 13, p. 3642, 2020.
20. Boissy, C., Alemany-Dumont, C., and Normand, B., “EIS Evaluation of Steady-State Characteristic of 316L Stainless Steel Passive Film Grown in Acidic Solution”, Electrochemistry Communications, Vol. 26, pp. 10-12, 2013.
21. Kocijan, A., Merl, D. K., and Jenko, M., “The Corrosion Behaviour of Austenitic and Duplex Stainless Steels in Artificial Saliva with the Addition of Fluoride”, Corrosion Science, Vol. 53, pp. 776-783, 2011.
22. Kurc, A., Kciuk, M., and Basiaga, M., “Influence of Cold Rolling on the Corrosion Resistance of Austenitic Steel”, Achievements in Materials and Manufacturing Engineering, Vol. 38, pp. 154-162, 2010.
23. Hamada, A., Karjalainen, L., and Somani, M., “Electrochemical Corrosion Behaviour of a Novel Submicron-Grained Austenitic Stainless Steel in an Acidic NaCl Solution”, Materials Science and Engineering: A, Vol. 431, pp. 211-217, 2006.
24. Štefec, R., and Franz, F., “A Study of the Pitting Corrosion of Cold-Worked Stainless Steel”, Corrosion Science, Vol. 18, pp. 161-168, 1978.
25. Luo, H., Su, H., Ying, G., Dong, Ch., and Li, X., “Effect of Cold Deformation on the Electrochemical Behaviour of 304L Stainless Steel in Contaminated Sulfuric Acid Environment”, Applied Surface Science, Vol. 425, pp. 628-638, 2017.
26. Ramirez, A. H., Ramirez, C. H., and Costa, I., “Cold Rolling Effect on the Microstructure and Pitting Resistance of the nbr iso 5832-1 Austenitic Stainless Steel”, International Journal of Electrochemical Science, Vol. 8, pp. 12801-12815, 2013.
27. Kumar, B. R., Mahato, B., and Singh, R., “Influence of Cold-Worked Structure on Electrochemical Properties of Austenitic Stainless Steels”, Metallurgical and Materials Transactions A, Vol. 38, pp. 2085-2094, 2007.
28. Fu, X., Ji, Y., Cheng, X., Dong, Ch., Fan, Y., and Li, X., “Effect of Grain Size and Its Uniformity on Corrosion Resistance of Rolled 316L Stainless Steel by EBSD and TEM”, Materials Today Communications, Vol. 25, p. 10142, 2020.
29. Bösing, I., Marquardt, G., and Thöming, J., “Effect of Heat Treatment of Martensitic Stainless Steel on Passive Layer Growth Kinetics Studied by Electrochemical Impedance Spectroscopy in Conjunction with the Point Defect Model”, Corrosion and Materials Degradation, Vol. 1, p. 6, 2020.
Journal of Advanced Materials in Engineering (Esteghlal)
Volume 40, Issue 2
September 2021
Pages 65-82

Files

Share

How to cite

Statistics

ارتقاء امنیت وب با وف ایرانی