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[WH40K] Corrupted marine renouncing chaos?

Have there ever been a case of a corrupted Space Marine returning from chaos? Not that they'd get accepted back by the loyalist Space Marines, but I'm curious if the corruption in some way is reversibel.
gpt
Their souls are sworn to the chaos gods upon death, Chaos space marine's bodies are also warped and fused to their armor to better serve their patron god.  
Even if they manage to break away they are fundamentally altered from their original forms. The Emperor of mankind could definitely undo the changes wrought by chaos and potentially hold onto their souls, but they broke their oaths to him and attacked mankind so it's doubtful the Emperor would be so forgiving.  
What's more the Ordos Herecticus and Ordos Malleus would happily, with several Astartes on hand, kill such a traitor on sight.  

Ordo Scriptorum thanks you for your inquiry and an Inquisitor has been dispatched to determine the extent of your heresy.  
Praise the Emperor.