Influence of As2O3 added to PbO–CaO–SiO2 slag on the degradation mechanisms of stainless steel
Source abstract
Abstract
Abstract The degradation of three stainless steel grades (23.8–25.0 wt.% Cr and 3.8–19.0 wt.% Ni) has been investigated after immersion in PbO–CaO–SiO 2 –As 2 O 3 slag for 3 h at 1200 °C. The degradation mechanisms are related to the steel and slag composition. The effect of As 2 O 3 is most pronounced in the slag with the highest PbO/SiO 2 ratio, where dissolution of the steel in liquid Pb, coming from the reduction of PbO, is most severely present. The reduction of As 2 O 3 to As causes alloying of the steel with As and subsequent liquid phase formation. The degradation degree increases with increasing Ni content of the steel.
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Research context
OpenAlex topics: Metallurgical Processes and Thermodynamics · Corrosion Behavior and Inhibition · Materials Engineering and Processing
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References (19)
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1. J.M. Floyd, Submerged injection of gas into a liquid-pyrometallurgical bath, U.S. patent 4, 251, 271 (1981).
2. Verhalten von hitzebeständigen Stählen in Bleischlacken
3. Influence of Cr and Ni content in stainless steel on the degradation mechanisms in PbO–CaO–SiO2 slag10.1016/j.corsci.2011.12.040 ↗
4. Degradation behaviour of stainless steel in PbO–CaO–SiO2 slag in the presence of sulfur10.1016/j.corsci.2011.09.030 ↗
5. Lead/acid battery recycling and the new Isasmelt process10.1016/0378-7753(93)80159-M ↗
6. Clean technologies for recycling: a case study on automotive batteries in Brazil
7. Formation of iron arsenide films on steel substrates from exposure to molten lead10.1016/j.tsf.2003.11.299 ↗
8. J.R. Davis, Heat-Resistant Materials, ASM International, Materials Park, 1997.
9. The As–Pb (Arsenic–Lead) system10.1007/BF02841694 ↗
10. The liquid miscibility gap and the distribution of silver between speiss and metallic lead in the Pb–Fe–As, Pb–Cu–As and Pb–Fe–Cu–As systems at 1200°C10.1179/cmq.1979.18.4.389 ↗
11. A thermodynamic assessment of the nickel–lead system10.1016/j.calphad.2010.08.001 ↗
12. Liquid–solid phase distribution studies in the systems iron–lead, cobalt–lead, chromium–tin and nickel–silver
13. The Cr–Pb (Chromium–Lead) system10.1007/BF02890554 ↗
14. Arsenic–Nickel–Lead
15. As–Fe–Ni (Arsenic–Iron–Nickel)10.1007/s11669-004-0069-x ↗
16. The As–Fe–Ni (Arsenic–Iron–Nickel) system
17. The As–Ni (Arsenic–Nickel) system10.1007/BF02893150 ↗
18. Thermodynamic assessment of the Fe–As system using an ionic two-sublattice model for the liquid phase
19. The As–Cr (Arsenic–Chromium) system10.1007/BF02898253 ↗