In situ observation of short fatigue crack propagation in oxygenated water at elevated temperature and pressure

J. A. Duff; T. J. Marrow

doi:10.1016/j.corsci.2012.10.030

In situ observation of short fatigue crack propagation in oxygenated water at elevated temperature and pressure

J. A. Duff, T. J. Marrow^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

A new method is demonstrated for in situ measurement of short crack propagation rates during a corrosion fatigue test of an austenitic stainless steel within a windowed autoclave at 250 °C, 50 atmospheres, oxygenated water. Digital image correlation is used to monitor crack growth through measurement of the opening displacements of defects; either focused ion beam (FIB) milled notches from which fatigue cracks initiated, or stress corrosion cracks that subsequently propagated by fatigue.

Original language	English
Pages (from-to)	34-43
Number of pages	10
Journal	Corrosion Science
Volume	68
DOIs	https://doi.org/10.1016/j.corsci.2012.10.030
Publication status	Published - Mar 2013

Keywords

A. Stainless steel
C. Corrosion fatigue
C. Reactor conditions

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10.1016/j.corsci.2012.10.030

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abstract = "A new method is demonstrated for in situ measurement of short crack propagation rates during a corrosion fatigue test of an austenitic stainless steel within a windowed autoclave at 250 °C, 50 atmospheres, oxygenated water. Digital image correlation is used to monitor crack growth through measurement of the opening displacements of defects; either focused ion beam (FIB) milled notches from which fatigue cracks initiated, or stress corrosion cracks that subsequently propagated by fatigue.",

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AB - A new method is demonstrated for in situ measurement of short crack propagation rates during a corrosion fatigue test of an austenitic stainless steel within a windowed autoclave at 250 °C, 50 atmospheres, oxygenated water. Digital image correlation is used to monitor crack growth through measurement of the opening displacements of defects; either focused ion beam (FIB) milled notches from which fatigue cracks initiated, or stress corrosion cracks that subsequently propagated by fatigue.

KW - A. Stainless steel

KW - C. Corrosion fatigue

KW - C. Reactor conditions

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VL - 68

SP - 34

EP - 43

JO - Corrosion Science

JF - Corrosion Science

ER -

In situ observation of short fatigue crack propagation in oxygenated water at elevated temperature and pressure

Abstract

Keywords

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