Measurement systems and methods for corrosion testing of coatings and materials
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United States of America Patent
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Sep 8, 2020
Grant Date -
Dec 15, 2016
app pub date -
Sep 25, 2014
filing date -
Sep 27, 2013
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Abstract
A measurement system permits environmental, corrosion damage, and mechanical property measurements to assess protection properties of coatings. The system includes one or more multi-sensor panels, each multi-sensor panel having sensors for assessing coating barrier properties, free corrosion, and galvanic corrosion. Each multi-sensor panel is installed on a test rack that contains electronics for sensor excitation and sensor data acquisition throughout a corrosion test. Sensor data is collected, stored, and communicated to a base station. A network of multiple test racks can be supported by a base station to compare the performance of different coatings and material combinations simultaneously. The test racks can be used in accelerated atmospheric corrosion tests, outdoor test sites, or application service environments. Measurements of the capacity of a coating to maintain barrier properties, prevent free corrosion, galvanic corrosion, and environment-assisted cracking can be used to develop, select, and predict service performance of coatings.
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