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The Influence Of Hydrogen On The Elastic Modulus And Anelastic Response Of Cold Worked Pure Iron

Published

Author(s)

Richard E. Ricker, David J. Pitchure

Abstract

Understanding the influence of hydrogen on elastic deformation and anelastic response should contribute to our understanding of the influence of hydrogen on deformation and fracture. To accomplish this objective, samples of pure iron were cold-worked, charged with hydrogen, and examined in a dynamic mechanical analyzer. For these measurements, square wave loads were applied at different frequencies and the response of the sample quantified into time-independent and time-dependent components. These measurements were then analyzed to determine the influence of hydrogen on the time-independent, elastic, modulus and time-dependent, anelastic, relaxation. Hydrogen lowered the measured elastic modulus by a small, but statistically significant, amount.
Proceedings Title
Effects of Hydrogen on Materials
Conference Dates
September 7-10, 2008
Conference Location
Moran, WY
Conference Title
2008 International Hydrogen Conference

Keywords

hydrogen embrittlement, iron, elastic modulus, anelastic relaxation, deformation, fracture, strain relaxation

Citation

Ricker, R. and Pitchure, D. (2009), The Influence Of Hydrogen On The Elastic Modulus And Anelastic Response Of Cold Worked Pure Iron, Effects of Hydrogen on Materials, Moran, WY, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901982 (Accessed February 23, 2024)
Created July 1, 2009, Updated February 19, 2017