![]() ![]() This work reviews recent advances in multiscale characterization and modeling efforts in Ti hydriding. Unfortunately, key knowledge gaps and challenges remain regarding the details of these coupled processes, which take place across vast ranges of time and length scales and are often difficult to probe directly. ![]() The kinetics of the hydriding process depends on several factors, including the critical saturation threshold for hydrogen within Ti, the specific interaction of hydrogen with protective surface oxide, the rates of mass transport, and the kinetics of nucleation and phase transformation. ![]() However, if exposed to hydrogen sources, these alloys are susceptible to hydride formation in the form of TiHx (0 < x ≤ 2), leading to crack initiation and mechanical failure due to lattice deformation and stress accumulation. Titanium (Ti) and its alloys are attractive for a wide variety of structural and functional applications owing to excellent specific strength, toughness and stiffness, and corrosion resistance. ![]()
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