Magnesium vapor was injected into 60 kg heats of carbon-saturated iron at 1523 K
2007
Key concepts
Scholarcy highlights
- Magnesium vapor was injected into 60 kg heats of carbon-saturated iron at 1523 K
- The magnesium dissolution and desulfurization rates as well as magnesium bubble size were monitored over sulfur contents ranging from 0.0002 to 0.2 pct S
- Further analysis indicated that most of the desulfurization took place at magnesium sulfide inclusions present in the bath; there was good agreement between the experimental precipitation rate constant and that predicted for diffusion to the number of inclusions observed by chemical analysis and inclusion counts
- The seed magnesium sulfide inclusions were probably stripped from the ascending magnesium bubbles
- These particles were quickly eliminated from the melt by bubble and induction stirring, resulting in a steady-state number of inclusions
- This allowed a pseudosteady-state model to be developed
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