|
|
|
| HIGH TEMPERATURE CORROSION OF Fe-Ni-Cr ALLOYS IN H_2S/H_2/CO_2 GASEOUS MIXTURES |
| LI Lingchuan (Department of Materials Science & Engineering; Tsinghua University)ZHU Rizhang (Department of Surface Science & Corrosion Engineering; University of Science & Technology Beijing) |
|
|
|
|
Abstract The corrosion kinetics and scale structures of two Fe-Ni-Cr alloys containing 18 wt% and 39% nickel respectively were investigated in gassous mixtures of H2S/H2/CO2 at 600℃. The difference in scale structures due to different nickel contents was shown mainly in the outermost layers: with FeS for the 18wt% Ni alloy, while porous and dark(Ni, Fe)S for the 39 wt% Ni one. Both alloys had a middle layer of FeCr2S4 and an inner layer of Cr3S4. The corrosion of the lower nickel content alloy obeyed parabolic law, while that of the higher nickel content alloy showed irregular kinetics. Sulfur pressure affected the 39 wt% Ni alloy more than the 18 wt% Ni alloy. The weight gain of the lower nickel content alloy exceeded that of the higher nickel content alloy.
|
|
Received: 25 February 1997
|
Cite this article:
LI Lingchuan (Department of Materials Science & Engineering; Tsinghua University)ZHU Rizhang (Department of Surface Science & Corrosion Engineering; University of Science & Technology Beijing). HIGH TEMPERATURE CORROSION OF Fe-Ni-Cr ALLOYS IN H_2S/H_2/CO_2 GASEOUS MIXTURES. J Chin Soc Corr Pro, 1997, 17(1): 46-50.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1997/V17/I1/46
|
1 Natesan K. Corrosion, 1985, 41:646
2 Stringer J. In: Embury J D Ed. High-Temperature Oxidation and Sulfidation Processes, New York: Pergamon Press, 1990. 257
3 Natesan K. In: Bakker W T, Dapkunas S, Hill V Ed. Materials for Coal Gasification, ASM International, Materials Park, 1988. 51
4 Gesmundo F. In: Bachelet E Ed. High Temperature Materials for Power Engineering, Kluwer Academic Pub., Dordrecht, 1990. 1:67
5 Natesan K. In: Proc. Cont. on Corrosion/Erosion of Coal-Conversion System Materials, National Association of Corrosion Engineers. Houston. TX, 1979. 222
6 Tiearney T C, Natesan K. J. Mater. Energy Sys., 1980, 1:13
7 Huang T T, Peterson B, Shore D A, Pfender E. Corrosion Science, 1984, 24(3): 167
8 Tiearney T C, Natesan K. Oxidation of Metals, 1982, 17: 1 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
