Corrosion Behaviour of Annealed 2205 Duplex Stainless Steel in Sulphuric Acid Environment
Authors/Creators
- 1. 1Department of Materials Science and Engineering; Obafemi Awolowo University, Ile-Ife, Nigeria
Description
t: This paper presents a study that investigates the corrosion behavior of annealed 2205 duplex stainless steel in sulphuric acid environment. Duplex 2205 stainless steel black bar in ASTM A276 was obtained and annealed in solite furnace for 45 minutes. A control sample which was not heat treated was also prepared. The annealed and the control samples which were metallographically prepared were then analyzed for corrosion behavior in sulphuric acid using potentiodynamic test/analysis. The potentiodynamic polarization plot generated showed that the annealed samples exhibit less corrosion resistance than the untreated samples, indicating that annealing heat treatment reduces the corrosion resistance of 2205 duplex stainless steel in sulphuric acid
Files
237864030.pdf
Additional details
References
- eartech Alloys, Inc.; (2018) Stainless Steel 410 Stainless Steel; Retrieved on 3rd July, 2018 from;
- Blasco-Tamarit, E,; Garcia-Garcia, D. M.; Garcia Anton, J. (2011)"Imposed potential measurements to evaluate the pitting corrosion resistance and the galvanic behaviour of a highly alloyed austenitic stainless steel and its weldment in a LiBr solution at temperatures up to 150 ◦C," Corrosion Science, vol.53, no. 2, pp. 784–795,
- Escrivá Cerdán, C.; Blasco Tamarit, ME.; García García, DM.; García Antón, J.; Akid, R.; Walton, J. (2013). Effect of temperature on passive film formation of UNS N08031 Cr-Ni alloy in phosphoric acid contaminated with different aggressive anions. Electrochimica. Acta. 111:552-561. doi:10.1016/j.electacta.2013.08.040.
- Escrivá Cerdán, C.; Blasco Tamarit, ME.; García García, DM.; García Antón, J.; Akid, R.; Walton, J. (2013). Effect of temperature on passive film formation of UNS N08031 Cr-Ni alloy in phosphoric acid contaminated with different aggressive anions. Electrochimica. Acta. 111:552-561. doi:10.1016/j.electacta.2013.08.040.
- Kotecki, D.J. (1989) Heat Treatment Of Duplex Stainless Steel Weld Metals, Welding Research, Supplement To The Welding Journal, November 1989, pp. 431-441
- Michigan State University, (2018) Passivity; Retrieved June 22nd, 2018 from: https://www2.chemistry.msu.edu/courses/cem837/Corrosion_Lecture%204-passivity.pdf
- Nilsson, J. (2018) Ferritic stainless steels-almost immune to stress corrosion, Retrieved on: 19th July, 2018 from: https://www.materials.sandvik/en/news-media/archive/2017/11/ferritic-stainless-steels-almost-immune-tostress-corrosion/