Hydriding of titanium: Recent trends and perspectives in advanced characterization and multiscale modeling

材料科学 表征(材料科学) 韧性 成核 腐蚀 多尺度建模 微观结构 结构材料 纳米技术 冶金 热力学 化学 物理 计算化学 有机化学
作者
Yakun Zhu,Tae Wook Heo,Juan Manuel Aparicio Rodríguez,Peter K. Weber,Rongpei Shi,Bruce J. Baer,Felipe F. Morgado,Stoichko Antonov,Kyoung E. Kweon,Erik B. Watkins,Daniel J. Savage,James Chapman,Nathan Keilbart,Younggil Song,Zhen Qi,Baptiste Gault,Sven C. Vogel,Shohini Sen-Britain,Matthew Shalloo,Christine A. Orme,Michael Bagge‐Hansen,Christopher N Hahn,Tuan Anh Pham,Digby D. Macdonald,S. Roger Qiu,Brandon C. Wood
出处
期刊:Current Opinion in Solid State & Materials Science [Elsevier BV]
卷期号:26 (6): 101020-101020 被引量:22
标识
DOI:10.1016/j.cossms.2022.101020
摘要

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. 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. 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. 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. This work reviews recent advances in multiscale characterization and modeling efforts in Ti hydriding. We identify unanswered questions and key challenges, propose new perspectives on how to solve these remaining issues, and close knowledge gaps by discussing and demonstrating specific opportunities for integrating advanced characterization and multiscale modeling to elucidate chemistry and composition, microstructure phenomena, and macroscale performance and testing.
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