Dr. Zihao Wang has been focusing on ensuring the reliability of structural materials in extreme environments, particularly with an emphasis on the grain boundary strength and a hardening effect of intermetallics in Ni and Fe based alloys. His current project will make use of the most ambitious in-situ observation methods to clarify and visualize the role of diffusible hydrogen in crack evolution mechanistically, which goes beyond the current state-of-the-art. He aims to reduce the repair rate of key components in the power plant, which will bring huge budget savings according to the current energy strategy. In the long-term perspective, a safe and low-cost energy will increase social welfare by providing low electricity prices, promote a decarbonised society, and achieve the ambitious goal of net-zero emissions.