Methods for reducing iron silicide and/or iron phosphide fouling and/or corrosion in a hydrochlorosilane production plant are disclosed. Sufficient hydrogen is added to a silicon tetrachloride process stream to inhibit iron (II) chloride formation and reduce iron silicide and/or iron phosphide fouling, superheater corrosion, or a combination thereof. Trichlorosilane also may be added to the silicon tetrachloride process stream.