Hydrogen partitioning is a research area within materials science and engineering that focuses on understanding the distribution, behavior, and interactions of hydrogen atoms within metallic materials. This is important because hydrogen can have detrimental effects on the mechanical properties and integrity of materials, leading to issues such as hydrogen embrittlement, hydrogen-induced cracking, and hydrogen absorption. Researchers in this field study how hydrogen atoms diffuse into materials, how they interact with different microstructures and defects within the materials, and how they affect the material's mechanical properties. Understanding hydrogen partitioning is crucial for developing strategies to mitigate the negative effects of hydrogen on materials, such as through the design of hydrogen-resistant alloys or coatings. Overall, hydrogen partitioning research is essential for enhancing the durability, safety, and performance of materials used in various industries, such as aerospace, automotive, energy production, and infrastructure.