TITLE:
Investigation for the Response of High Strength Steel 42CrMo4 to in-situ Hydrogen Loading through Tensile Testing
AUTHORS:
Omar Marena
KEYWORDS:
Hydrogen Embrittlement, High-Strength Steel, Mechanical Properties, Current Density, Hydrogen-Induced Embrittlement, Hydrogen-Rich Environments
JOURNAL NAME:
Open Access Library Journal,
Vol.10 No.9,
September
27,
2023
ABSTRACT: This study delves into the challenge of hydrogen embrittlement in high-strength industries operating in hydrogen-rich environments. It investigates the response of high-strength steel 42CrMo4 to hydrogen loading using fatigue testing and diverse electrochemical conditions. Mechanical properties were analyzed through slow strain rate tests. The uncharged test-1 specimen exhibited robust mechanical attributes and a martensitic microstructure. However, heightened current density in tests-2 and 3 led to hydrogen-induced embrittlement, causing reduced tensile strength, hardness, and elongation, accompanied by brittle fractures. The research advances comprehension of how current density impacts 42CrMo4’s mechanical traits under hydrogen exposure. Insights are applicable to theory and practice, aiding the development of hydrogen-resistant materials for enhanced industry durability. Amid evolving challenges, this study’s insights support the creation of safer, more dependable structures in hydrogen-rich environments.