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

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Author(s): Richard E. Ricker; David J. Pitchure;
Title: The Influence Of Hydrogen On The Elastic Modulus And Anelastic Response Of Cold Worked Pure Iron
Published: July 01, 2009
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.
Conference: 2008 International Hydrogen Conference
Proceedings: Effects of Hydrogen on Materials
Pages: pp. 219 - 226
Location: Moran, WY
Dates: September 7-10, 2008
Keywords: hydrogen embrittlement; iron; elastic modulus; anelastic relaxation; deformation; fracture; strain relaxation
Research Areas: Materials performance, Materials Science
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