$In situ high energy X-ray diffraction measurement of strain and dislocation density ahead of crack tips grown in hydrogen$

In situ high energy X-ray diffraction measurement of strain and dislocation density ahead of crack tips grown in hydrogen

The deformation fields near fatigue crack tips grown in hydrogen and in air were measured using high-energy x-ray diffraction. A larger magnitude of elastic strain was observed in the hydrogen case compared to the air case. The magnitude of elastic strain was quantified through an effective crack ti...

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Veröffentlicht in:	Acta materialia 2019-09, Vol.180 (C)
Hauptverfasser:	Connolly, Matthew, Martin, May, Bradley, Peter, Lauria, Damian, Slifka, Andrew, Amaro, Robert, Looney, Christopher, Park, Jun-Sang
Format:	Artikel
Sprache:	eng
Schlagworte:	diffraction dislocation fatigue finite element HEDE HELP hydrogen MATERIALS SCIENCE steel strain synchrotron
Online-Zugang:	Volltext
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