Question about aluminum oxide abrasive

You ask if aluminum oxide abrasive will cause corrosion problems on the "base" metal when it is plated over.
Do you MEAN "BASE" metal such as sodium or potassium, or do you mean "BASIS" metal which is the basis for the plating? Don't mix these terms up.
Be very specific. What basis metal do you refer to? What is the metal you will be plating over the basis metal? What kind of corrosion do the doomsayers say you will encounter? It will be a whole lot easier to solve the problem when you say what the problem is or may be.

OK. You are prepping buffed steel for plating. What is the typical cycle? Remove compound in a diphase cleaner or in a power wash or some such cleaner. The next step is probably soak/electroclean. Next is a pickle, use a hydrochloric acid solution about 30% to 40% by volume. The aluminum or aluminum oxide is dissolved, and voila! No more problems. It works.
Now, even if there WERE small smears of aluminum metal or aluminum oxide, how would that corrode after it was encapsulated by the relatively thick deposits involved in decorative plating?