modelling corrosion in COMSOL 4.2

Hello everybody,


I want to model steel reinforcement corrosion in concrete with COMSOL, but I have version 4.2.

I also found that direct corrosion module is available in COMSOL 4.3 version only.

So, I would like to know can corrosion be modelled in COMSOL 4.2 also?? It would be very helpful if you suggest any procedure to model corrosion in COMSOL 4.2 as well as any earlier versions also.


Thanks