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The distinctive alloy design strategy and characteristics of high-entropy alloys (HEAs) have demonstrated immense promise for engineering applications, ranging from cryogenic to elevated temperatures. The combination of HEA and surface coating technology has been further explored to develop robust and thick coatings for industrial applications operating in extreme engineering environments. Over a decade-long period of research at Swinburne University of Technology, we have combined HEAs with thermal spray and laser deposition techniques, developing robust and thick coatings ideal for extreme engineering applications. Our research not only employs experimental techniques but also integrates non-equilibrium simulations using CALPHAD to enhance HEA development efficiently. Extensive collaborations, detailed microstructural analysis, and studies on application-specific behaviour have enabled us to contribute to a deeper understanding of how HEAs can enhance the lifespan and efficiency of critical components.

Marine and water industries include conditions that present unique and significant challenges for materials. Designers and engineers require solutions to optimise the lifetime and performance of a range of structures and system components used in these environments. Some of the challenges include corrosion, fouling, wear and light weighting.

The presentation will discuss examples of fundamental and applied work that is being carried out with industry partners to provide solutions to associated problems. This includes the use of thermally sprayed coatings for critical components and studies looking at the problems caused by microbes and macro fouling. These projects include opportunities for training the next generation of researchers and industry professionals.

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