Examples of corrosion of refractories caused by steel slag
Degradation of refractories by slags in steelmaking - Examples and improvement of refractory performance
Article REF: N4853 V1
Examples of corrosion of refractories caused by steel slag
Degradation of refractories by slags in steelmaking - Examples and improvement of refractory performance

Authors : Philippe BLUMENFELD, Jacques POIRIER

Publication date: June 10, 2026 | Lire en français

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2. Examples of corrosion of refractories caused by steel slag

2.1 MgO-C refractories in contact with converter slag and steel ladle slag

These examples illustrate the transition from a corrosion-dissolution mechanism to a corrosion-erosion mechanism.

MgO-C refractories consist of magnesia aggregates several millimeters in size, bound by a matrix containing fine magnesia (< 100 μm), graphite flakes, and fine carbon (between 10 and 500 nm). Metal powders (particularly aluminum) are often added to limit the oxidation of carbon by air

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