What is it about?

This an experimental and analytical study of the combined affects of compressive and diffusive stresses on the nucleation and propagation of circular coating blisters when micro-cracks are present.

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Why is it important?

Coating is one the most effective measures to control corrosion.

Perspectives

“40% of the 5 metric tons steel produced every second is used to replace corroding steel and costs 1.8 trillion USD [Jotun]”. There are several challenges in terms of complexity such as combined effects of heat transfer, mechanics and fracture which lead to these failures. Coating failures within high value assets is a significant issue. Industry partner funded this research to develop novel predictive techniques to enhance durability and cost savings. Novel models (6, 7) were developed to predict failures to enhance durability and reduce maintenance costs.

Professor Zulfiqar Ahmad Khan
NanoCorr, Energy & Modelling Research Group, Bournemouth University

Read the Original

This page is a summary of: Analysing the coupled effects of compressive and diffusion induced stresses on the nucleation and propagation of circular coating blisters in the presence of micro-cracks, Engineering Failure Analysis, December 2016, Elsevier, DOI: 10.1016/j.engfailanal.2016.07.003.
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