Hi, I’m Mikayla Sharrieff, a researcher at FAMU-FSU College of Engineering. My research focuses on evaluating fracture toughness using scratch-based methods as an alternative to traditional mechanical testing. I conduct scratch tests with different tip materials (diamond, carbide, double-tip) and use scanning electron microscopy (SEM) to analyze wear rates and surface morphology. The project investigates the indentation size effect and maps mechanical properties such as hardness and elastic modulus at high spatial resolution. Initial results show copper exhibits higher wear rates compared to Inconel, likely due to its softer and more malleable nature. Future work includes expanding scratch testing to hydrogen-aged materials and a broader range of metals, while analyzing how wear rate varies with increased cycles.