Most everyone knows how rust is formed but just to remind you when iron is exposed to oxygen and moisture for extended periods of time. Now if we were to apply much more pressure to the environment would this increase rusting rates? I believe that it would but another aspect would be the temperature during the process. Would a higher or lower temperature effect how it rusts? I have done thorough research but have not found much on this topic that fits my question.
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I think this question is better fit in chemistry stackexchange, but nevertheless here is a solution:
Specifically for iron, the chemical equation for its rusting is $$4\text{Fe}+3\text{O}_2\to 2\text{Fe}_2\text{O}_3$$ At STP, $\Delta H=-824.2\ \text{kJ}/\text{mol}$. Therefore, by Le Chatelier's principle adding pressure would shift the reaction to the right (more rust), and adding heat would shift it to the left (less rust).