Yes. Mixed fillers of dissimilar materials easily trigger electrochemical corrosion and accelerate component deterioration.

Electrode potential difference forms corrosive galvanic cells

Metal and non-metal fillers have distinct potential values. When immersed in conductive wastewater, mutual contact creates galvanic cells. Metals with lower potential act as anodes and undergo continuous accelerated dissolution and corrosion.

Liquid electrolyte serves as a conductive circuit

Saline wastewater boasts high conductivity. Ions conduct electric current, enabling spontaneous and continuous corrosion reactions rather than static contact wear.

Water accumulated in gaps aggravates corrosion

Liquid deposits and dirt trapped in filler gaps cause uneven oxygen distribution, forming oxygen concentration cells and doubling local corrosion speed.

Alternating dry and wet conditions widen corrosion disparity

Fluctuating potential conditions at gas-liquid interfaces deepen corrosion pits in anode zones, bringing about pitting corrosion and gap damage.

Impurity ions catalyze corrosion reactions

Coexisting chloride ions and acidic substances damage metal passivation films, further speeding up electrochemical corrosion between dissimilar materials.