Hi, I’m Brianna L. Phillips, a researcher at FAMU-FSU College of Engineering. My research investigates the mechanical and tribological properties of alloys exposed to extreme environments relevant for hydrogen energy applications. Specifically, I study how hydrogen exposure and cryogenic cycling affect materials like tungsten, nickel foil, stainless steel, copper, and Inconel. Samples are hydrogen-aged in a 5% hydrogen-nitrogen forming gas at 150°C and then submerged in liquid nitrogen for various durations to simulate aerospace conditions. Vickers hardness tests and microscopy are used to assess structural changes and mechanical degradation. Unexpectedly, tungsten showed the least hydrogen effect while copper was less affected than predicted. Future work includes establishing control gas groups and exploring surface cleaning or polishing to further understand hydrogen’s impact.