No. Absolutely no.
It is difficult to recover data from a drive with a faulty PCB, although you are not sure that really was its problem. However, it is going to be IMPOSSIBLE to recover anything from a HDD that has been opened and touched. That case of the HDD with platters inside is sealed for a very good reason. It CANNOT have any dust inside - even invisibly small dust - or it will damage itself when you try to use it. Even worse in your case, the platter has visible scratches on it now - makes it impossible for it to be used.