3. Mechanical behavior of metal alloys under H2 pressure
Hydrogen embrittlement is characterized by a drop in ductility, toughness and an acceleration in the rate of fatigue crack propagation, resulting in a shorter component life under cyclic loading. The sensitivity of a material will depend on its microstructure (chemical composition, phases, defects...), gaseous environment (partial pressure of H 2 , impurities), mechanical stress (stress rate, monotonic or cyclic loading...) and the presence of stress concentration zones (notch or crack). The remainder of this chapter presents the main characteristics of the mechanical behavior of different classes of metal alloys in the presence of hydrogen. As it cannot be exhaustive, the aim is to highlight the main trends observed, so as to provide the right approach for taking this particular environment into account when dimensioning a component.
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference
This article is included in
Corrosion - Aging
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Mechanical behavior of metal alloys under H2 pressure
Bibliography
Standards and norms
Leaflet, code
- Transportable gas cylinders – Hydrogen embrittlement of steels - AFNOR FD E 29-649 - 2004
- Alternatives rules for construction of high pressure vessels, Boiler and Pressure Vessel Code - ASME Section VIII, Division III - 2019
- Transportable gas cylinders – Compatibility of cylinder and valve materials with gas contents – Part 4: Tests methods for selecting steels...
Standards
Directory
Organizations – Federations – Associations (non-exhaustive list)
CEFRACOR's "Stress corrosion, fatigue – corrosion and hydrogen embrittlement" thematic commission:
...Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference