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Understanding of fatigue damages and their recovery

Reuse of metallic components at the end of their previous service is the most effective approach to increase resource efficiency and to mitigate environmental damage, and thus represents a preferred route to deliver full metal circulation. Reuse conserves all the embedded energy and other valuable resources used to manufacture components and keeps such energy and resources in the resource loop for much longer (slow down the loop). However, analogous to human beings, metallic components suffer from fatigue after prolonged service. It is estimated that more than 80% of metallic components at the end of their service have perfect physical dimensions but reduced mechanical performance due to the existence of flaws such as microcracks or corrosion-induced intergranular fissures, which all originate from fatigue.

Such used components can be effectively reused if the incipient cracks and sub-critical defects can be healed and the internal stresses accumulated during the service can be released without affecting the overall microstructure of the component. This PhD project aims to understand fatigue damages at a microstructural level and recovery of such fatigue damages.

The funding is £88,919 for a 4-year duration. 

Eligibility

The successful candidate is required to have a first-class or upper second-class honour degree in metallurgy, materials science or a related field of physical science or engineering etc. A Master’s level qualification is desirable but not essential.

How to apply

Please email (1) an up-to-date CV, (2) a single-page (A4), single-spaced personal statement setting out why you are interested in undertaking this project, (3) names and contact details of three referees, and (4) a copy of your highest degree certificate and transcript to isaac.chang@brunel.ac.uk