Eroze bude asi vhodnější, ale koroze se týká i plastů. Co je to koroze? Je to zjednodušeně oxidace materiálu a oxidovat mohou i plasty. Třeba Google:
"...Corrosion is the deterioration of a material, or of its properties, as a consequence of reaction with its environment."
"...Corrosion of Plastics and Rubber in Process Equipment--Experiences from the Pulp and Paper Industry..."