What is it about?
Understanding the impact of hydrogen embrittlement (HE) on the mechanical properties of additively manufactured (AM) metals is of utmost importance for industries utilizing these materials, including critical hydrogen transportation and storage applications. This comprehensive review paper explores the effects of HE on AM alloys, emphasizing the crucial role of microstructure and its influence on HE and hydrogen-induced crack initiation (HICI) and propagation processes.
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Why is it important?
A comprehensive investigation of hydrogen embrittlement (HE) mechanisms and their interaction with microstructure according to the HELP + HEDE model can provide valuable insights into the susceptibility of additively manufactured (AM( metals to HE and hydrogen-induced crack initiation (HICI). Also, it provides an in-depth understanding of hydrogen embrittlement in AM metals, providing recommendations for the design, development, and safety introduction of new additively manufactured alloys in hydrogen-based energy solutions. Understanding the impact of hydrogen embrittlement (HE) on the mechanical properties of additively manufactured (AM) metals is of utmost importance for industries utilizing these materials, including critical hydrogen transportation and storage applications.
Perspectives
We attempt in this comprehensive review paper to thematically categorize the microstructure behavior and its role in hydrogen embrittlement (HE) phenomena and hydrogen-induced crack initiation (HICI) in common additively manufactured (AM) alloys. An overview of the state-of-the-art collection of research papers concerning HE and HICI in AM metals and proposing a classification scheme for the underlying HE mechanisms constitutes the novelty of this article. This paper covers three intriguing broad fields: AM, HE, and fatigue.
Professor Milos B. Djukic
University of Belgrade, Faculty of Mechanical Engineering
Read the Original
This page is a summary of: Hydrogen embrittlement and hydrogen-induced crack initiation in additively manufactured metals: A critical review on mechanical and cyclic loading, International Journal of Hydrogen Energy, March 2024, Elsevier,
DOI: 10.1016/j.ijhydene.2024.01.232.
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