Timeline for How to determine at which temperature does iron in stainless steel undergoes spontaneous oxidation?
Current License: CC BY-SA 4.0
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| Dec 4, 2018 at 14:21 | history | edited | Gert | CC BY-SA 4.0 |
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| Dec 3, 2018 at 21:12 | comment | added | Chemomechanics | @lavirtuosacorcholatavoladora Since the oxidation of Cr always lies below the oxidation of Fe (up to the melting point) in the Ellingham diagram, which is essentially a plot of negative spontaneity vs. temperature, we know that elemental Cr in the material will always tend to oxidize (and also reduce oxidized Fe) before the elemental Fe oxidizes. | |
| Dec 3, 2018 at 17:34 | history | edited | Gert | CC BY-SA 4.0 |
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| Dec 3, 2018 at 17:33 | comment | added | Gert | Ellingham diagrams serve a different (but related) purpose. And Arrhenius plots assume the reaction proceeds throughout the reagents, not just on the surface. I would look for handbooks on corrosion of building materials such as SSs. These will provide practical guidelines for the use of SS at high Ts, w/o going into theory, which is difficult to apply here. | |
| Dec 3, 2018 at 16:28 | comment | added | corcholatacolormarengo | Thanks for the comment, do you happen to know any literature about Arrhenius plot for stainless steels? One of my colleges suggested me to look at Ellingham diagrams, does this make sense to you? | |
| Dec 3, 2018 at 16:20 | history | answered | Gert | CC BY-SA 4.0 |
