Hydrogen Embrittlement Behavior and Mitigation Strategies in Metallic Materials

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Development of Energy Science

Development of Energy Science is an international comprehensive professional academic journal of Ivy Publisher, concerning the energy research and utilization technology development, on the research of energy development, production, conversion, transmission, distribution and utilization. The main focus of the journal is the energy science theory, academic papers and comments of latest research improvement in the fields of nature science, enginee... [More] Development of Energy Science is an international comprehensive professional academic journal of Ivy Publisher, concerning the energy research and utilization technology development, on the research of energy development, production, conversion, transmission, distribution and utilization. The main focus of the journal is the energy science theory, academic papers and comments of latest research improvement in the fields of nature science, engineering technology, economy and science, report of latest research result, aiming at providing a good communication platform to transfer, share and discuss the theoretical and technical development for professionals, scholars and researchers in this field, reflecting the academic front level, promote academic change and foster the development of energy science and technology.

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Hydrogen Embrittlement Behavior and Mitigation Strategies in Metallic Materials

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Author: Jiao Luo

Abstract: Hydrogen embrittlement (HE) remains a critical challenge in the reliability and safety of metallic components across a range of engineering applications, from aerospace to energy infrastructure. This review comprehensively explores the fundamental mechanisms underlying HE—including hydrogen-enhanced decohesion (HEDE), hydrogen-enhanced localized plasticity (HELP), and hydride-induced embrittlement—across various metal systems. Emphasis is placed on advanced characterization techniques such as thermal desorption spectroscopy, atom probe tomography, and in-situ mechanical testing, which provide multi-scale insights into hydrogen transport, trapping, and damage evolution. The study further evaluates key factors influencing HE susceptibility, including alloy composition, microstructural features, environmental conditions, and applied stress states. Mitigation strategies are systematically discussed, focusing on alloy design, microstructural engineering, surface treatments, and thermal processing. By integrating mechanistic understanding with practical prevention methods, this work provides a comprehensive framework for the design and maintenance of hydrogen-tolerant metallic materials in modern engineering systems.

Keywords: Hydrogen Embrittlement; Metallic Components; Hydrogen-Enhanced Decohesion; Hydrogen-Enhanced Localized Plasticity; Hydride-Induced Embrittlement; Metallic Materials

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