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Studying Impact on Variation of Scribe Method in Accelerated Corrosion Testing

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Accelerated testing of corrosion-resistant coatings is a critical tool used in the development of protective coatings. Tests such as ASTM B117, ISO 12944, ISO 9227, etc. are commonly used to predict the long-term viability of these coatings in exposure times of months rather than years or even decades. While this type of testing gives meaningful results and is essential to the research and development of new technology, results can often be hard to accurately analyze due to the levels of variability inherent to accelerated testing.

Product Number: 51323-19351-SG
Author: James D. Begley, Victor Georgic, Suprita Jharimune, Qi Zheng
Publication Date: 2023
$20.00
$20.00
$20.00

Accelerated corrosion testing of substrates under coatings has an inherently high level of variability. When comparing different coating systems, significant levels of variability can mask potential differences in corrosion prevention. Reducing this level of variability could significantly increase efficiency and accuracy when developing new coating systems. In this work, the effect of altering the size and shape of the scribe in method ISO 12944 will be investigated by comparing the performance of well-understood commercial coating systems. Discussion will focus on sample preparation of multiple coating types prior to corrosion testing as well as scribe creep measurement analysis afterwards.

Accelerated corrosion testing of substrates under coatings has an inherently high level of variability. When comparing different coating systems, significant levels of variability can mask potential differences in corrosion prevention. Reducing this level of variability could significantly increase efficiency and accuracy when developing new coating systems. In this work, the effect of altering the size and shape of the scribe in method ISO 12944 will be investigated by comparing the performance of well-understood commercial coating systems. Discussion will focus on sample preparation of multiple coating types prior to corrosion testing as well as scribe creep measurement analysis afterwards.

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