Systems and methods for corrosion fatigue assessment

A method for predicting a service life of a metal component subjected to cyclic mechanical loading in a corrosive environment, the method comprising:

• sensing electrochemical currents in a metal component under static loading, the electrochemical currents in the metal component under static loading indicative of a static corrosion current density, icorr, static of the metal component;
• obtaining environmental data relating to a corrosive environment;
• obtaining loading data relating to mechanical loading of the metal component;
• and
• predicting a service life of the metal component based on corrosion data indicative of the measured electrochemical currents, the environmental data, and the loading data.

A system for predicting a service life of a metal component subjected to cyclic mechanical loading in a corrosive environment, the system comprising:

• a sensor head, including:
• at least one corrosion sensor configured to measure electrochemical currents in a metal component under static loading, the electrochemical currents in the metal component under static loading indicative of a static corrosion current density, icorr, static of the metal component;
• at least one environmental sensor configured to sense at least one property of a corrosive environment;
• and
• at least one load sensor configured to sense at least one property of a mechanical loading of the metal component;
• and
• a controller communicatively coupled to the sensor head, the controller including a processor and a non-transitory computer-readable storage medium storing instructions that, when executed by the processor, cause the processor to:
• receive corrosion data from the at least one corrosion sensor of the sensor head, the corrosion data indicative of the measured electrochemical currents;
• receive environmental data from the at least one environmental sensor of the sensor head, the environmental data indicative of at least one property of the corrosive environment;
• receive loading data from the at least one load sensor of the sensor head, the loading data indicative of the at least one property of the mechanical loading of the metal component;
• and
• predict a service life of the metal component based on the corrosion data, the environmental data, and the loading data.