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The degree to which molten salt corrosion affects the service life of equipment is closely related to the type of material, the composition of the molten salt, and the operating temperature; there are significant differences under various operating conditions. For ordinary metal materials such as carbon steel and 304 stainless steel, the corrosion rate in molten salts containing chloride ions can range from 0.5 to 2.0 mm per year, resulting in a wall thickness reduction of more than 2.5 mm after 5 years of operation. This significantly weakens the structural strength of the equipment, with a service life of only 1 to 3 years under normal operating conditions. Corrosion-resistant alloy materials: Improved alloys such as HR3C and Inconel 625 can form a stable passivation film, reducing the corrosion rate to below 0.15 mm/year; this allows the service life of the equipment to be extended by more than twice, with stable operation possible for 5 to 8 years under proper maintenance. Special ceramic materials: Non-metallic materials such as silicon nitride sintered under atmospheric pressure exhibit an erosion layer of only a few microns in 700°C mixed molten salts. The continuous operation period of these components can be increased from 6 months for alloys to over 18 months, thereby significantly reducing unplanned downtime. For every 1% increase in the concentration of impurity ions in the molten salt, the corrosion rate increases by 10% to 20%. If the chloride ion concentration rises from 0.1 mol% to 1 mol%, the corrosion rate of the alloy increases by approximately 5 times, further significantly reducing the service life of the equipment.