Abstract
The paper reports the results of research on the effect of hydrogen penetration on the variations in the mechanical properties of selected aluminum alloys. As a result of the study, it can be observed that such variations contribute to the deterioration of mechanical properties, which, in turn, contributes to shortening the reliability time associated with the operation of aluminum alloy structures. The analysis involved structural aluminum alloys: EN AW-1050A, EN AW-5754 and EN AW-6060. Tensile strength and impact strength were measured. It was demonstrated that the absorption of hydrogen by the analyzed alloys led to the deterioration of mechanical properties of aluminum alloys. The performed measurements were compared to the previous research results regarding the influence of hydrogen on the deterioration of corrosion properties. The analysis of the influence of hydrogen on both issues allowed us to notice the reasons for shortening the operational reliability time of aluminum alloy parts. The awareness of the influence of hydrogen on aluminum alloys may contribute to the development of hydrogen systems or installations in which aluminum alloys can be used as a construction material, e.g., fuel cells, hydrogen supply pipes, block of combustion engine powered by hydrogen, etc. In the era of the development of zero-emission vehicles, the use of hydrogen as fuel is gaining more and more importance, where the influence of hydrogen on the properties of materials is an important issue.
Highlights
In the era of development of environmentally friendly energy or automotive industry, in which the increase of the share of hydrogen as fuel is planned, it is important to recognize the influence of this gas on the properties of construction materials such as aluminum alloys
Hydrogen embrittlement causes a reduction in mechanical properties, while a change in electrochemical properties causes a reduction in the corrosive properties of metal alloys [5]
Lowering both types of properties result in shortening the operational reliability time [8,9], which may affect both the safety of users and the shorter service life of metal alloy constructions [10,11,12]
Summary
In the era of development of environmentally friendly energy or automotive industry, in which the increase of the share of hydrogen as fuel is planned, it is important to recognize the influence of this gas on the properties of construction materials such as aluminum alloys. The knowledge of the influence of hydrogen on structural alloys may allow us to increase the safety of use, and to extend the service life of devices, which in turn contributes to environmental protection, as it postpones the need to manufacture new parts [13]. For this reason, research on the influence of hydrogen on various types of metal alloys is very important
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
