U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Unification of hydrogen-enhanced damage understanding through Strain-Life Experiments and Modeling

Published

Author(s)

May L. Martin, Christopher P. Looney, Peter E. Bradley, Damian S. Lauria, Robert L. Amaro, Andrew J. Slifka

Abstract

Strain-life testing of a 4130 pressure vessel steel was conducted in hydrogen gas through the careful adaptation of an existing hydrogen-gas mechanical testing apparatus. The strain-life mechanical results reveal that hydrogen has a significant effect on the strain-life, and impacts both the elastic and plastic responses of the material. Microscopy analysis shows a distinct difference in the microstructural development of the material after cyclic loading in air compared to in hydrogen gas. These experimental results will inform coupled damage and deformation modeling.
Citation
Engineering Fracture Mechanics
Pub Type
Journals

Download Paper

https://doi.org/10.1016/j.engfracmech.2019.106504

Keywords

Hydrogen embrittlement, strain-life, plasticity
Materials characterization and Mechanical properties

Citation

Martin, M. , Looney, C. , Bradley, P. , Lauria, D. , Amaro, R. and Slifka, A. (2019), Unification of hydrogen-enhanced damage understanding through Strain-Life Experiments and Modeling, Engineering Fracture Mechanics, [online], https://doi.org/10.1016/j.engfracmech.2019.106504 (Accessed December 13, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created June 20, 2019, Updated July 1, 2019