Browse > Article
http://dx.doi.org/10.3365/KJMM.2010.48.08.741

Analysis of the Effects of Ti, Si, and Mo on the Resistance to Corrosion and Oxidation of Fe-18Cr Stainless Steels by Response Surface Methodology  

Jang, HeeJin (Department of Metallurgical and Materials Engineering, Chosun University)
Yun, Kwi-Sub (School of Materials Science and Engineering, Chonnam National University)
Park, Chan-Jin (School of Materials Science and Engineering, Chonnam National University)
Publication Information
Korean Journal of Metals and Materials / v.48, no.8, 2010 , pp. 741-748 More about this Journal
Abstract
We studied the corrosion and oxidation properties of Fe-18Cr-0.4Nb-(0.1~0.6)Ti-(1~3)Si-(0.5~2)Mo stainless steel. The resistance to general and pitting corrosion was evaluated and the results were analyzed by Response Surface Methodology (RSM) as a function of alloy composition. The effects of alloy composition and heat treatment on the oxidation resistance were also examined. Mo increased both general corrosion resistance and pitting corrosion resistance. Si improved the resistance of the alloys to pitting corrosion. Si was also beneficial for general corrosion resistance of the alloys containing Mo at more than 1 wt.%. However, Mo was detrimental when its content was lower. Effects of Ti on general corrosion properties appeared to be weak and a high concentration of Ti appeared to deteriorate pitting resistance. The thickness of the oxidation scale increased and adhesion of the scale worsened as the temperature increased from $800^{\circ}C$ to $900^{\circ}C$. Weight gain of the alloys due to oxidation at $900^{\circ}C$ clearly showed that the resistance to oxidation is improved by annealing at $860^{\circ}C$ and an increase of Si content.
Keywords
alloys; annealing; corrosion; oxidation; Response Surface Methodology;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 4
연도 인용수 순위
1 Y. D. Lee, Corros. Sci. and Tech. 31, 198 (2002).
2 A. John Sedriks, 2nd ed., Corrosion of Stainless Steels, John Wiley & Son INC (1996).
3 A. Pardo, M. C. Merino, A. E. Coy, F. Viejo, M. Carboneras, and R. Arrabla, Acta Mater. 55, 2239 (2007).   DOI   ScienceOn
4 M. A. Ameer, A. M. Fekry, and F. El-Taib Heakal, Electrochim. Acta 50, 43 (2004).   DOI   ScienceOn
5 A. Pardo, M. C. Merino, A. E. Coy, F. Viejo, R. Arrabal, and E. Matykina, Corros. Sci. 50, 1796 (2008).   DOI   ScienceOn
6 D.-Y. Lin and T.-C. Chang, Mater. Sci. Eng. A359, 396 (2003).
7 S. B. Lee, Example-driven Design of Experiments, ERETEC INC (2008).
8 D. C. Yang, I. S. Jang, M. H. Jang, C. N. Park, C. J. Park, and J. Choi, Met. Mater. Int. 15, 421 (2009).   DOI   ScienceOn
9 H. J. Jang, W. J. Beom, and C. J. Park, J. of Kor. Inst. Surf. Eng. 42, 79 (2009).   DOI   ScienceOn
10 J. M. Francis and J. A. Jutson, Mat. Sci. Eng. 4, 84 (1969).   DOI   ScienceOn