Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel

Abstract Creep cavitation in an ex-service nuclear steam header Type 316 stainless steel sample is investigated through a multiscale tomography workflow spanning eight orders of magnitude, combining X-ray computed tomography (CT), plasma focused ion beam (FIB) scanning electron microscope (SEM) imag...

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Autores principales:	T. J. A. Slater, R. S. Bradley, G. Bertali, R. Geurts, S. M. Northover, M. G. Burke, S. J. Haigh, T. L. Burnett, P. J. Withers
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/29ed89e79584439cb7bcd61b21321872
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spelling	oai:doaj.org-article:29ed89e79584439cb7bcd61b213218722021-12-02T15:05:55ZMultiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel10.1038/s41598-017-06976-52045-2322https://doaj.org/article/29ed89e79584439cb7bcd61b213218722017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06976-5https://doaj.org/toc/2045-2322Abstract Creep cavitation in an ex-service nuclear steam header Type 316 stainless steel sample is investigated through a multiscale tomography workflow spanning eight orders of magnitude, combining X-ray computed tomography (CT), plasma focused ion beam (FIB) scanning electron microscope (SEM) imaging and scanning transmission electron microscope (STEM) tomography. Guided by microscale X-ray CT, nanoscale X-ray CT is used to investigate the size and morphology of cavities at a triple point of grain boundaries. In order to understand the factors affecting the extent of cavitation, the orientation and crystallographic misorientation of each boundary is characterised using electron backscatter diffraction (EBSD). Additionally, in order to better understand boundary phase growth, the chemistry of a single boundary and its associated secondary phase precipitates is probed through STEM energy dispersive X-ray (EDX) tomography. The difference in cavitation of the three grain boundaries investigated suggests that the orientation of grain boundaries with respect to the direction of principal stress is important in the promotion of cavity formation.T. J. A. SlaterR. S. BradleyG. BertaliR. GeurtsS. M. NorthoverM. G. BurkeS. J. HaighT. L. BurnettP. J. WithersNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q T. J. A. Slater R. S. Bradley G. Bertali R. Geurts S. M. Northover M. G. Burke S. J. Haigh T. L. Burnett P. J. Withers Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel
description	Abstract Creep cavitation in an ex-service nuclear steam header Type 316 stainless steel sample is investigated through a multiscale tomography workflow spanning eight orders of magnitude, combining X-ray computed tomography (CT), plasma focused ion beam (FIB) scanning electron microscope (SEM) imaging and scanning transmission electron microscope (STEM) tomography. Guided by microscale X-ray CT, nanoscale X-ray CT is used to investigate the size and morphology of cavities at a triple point of grain boundaries. In order to understand the factors affecting the extent of cavitation, the orientation and crystallographic misorientation of each boundary is characterised using electron backscatter diffraction (EBSD). Additionally, in order to better understand boundary phase growth, the chemistry of a single boundary and its associated secondary phase precipitates is probed through STEM energy dispersive X-ray (EDX) tomography. The difference in cavitation of the three grain boundaries investigated suggests that the orientation of grain boundaries with respect to the direction of principal stress is important in the promotion of cavity formation.
format	article
author	T. J. A. Slater R. S. Bradley G. Bertali R. Geurts S. M. Northover M. G. Burke S. J. Haigh T. L. Burnett P. J. Withers
author_facet	T. J. A. Slater R. S. Bradley G. Bertali R. Geurts S. M. Northover M. G. Burke S. J. Haigh T. L. Burnett P. J. Withers
author_sort	T. J. A. Slater
title	Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel
title_short	Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel
title_full	Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel
title_fullStr	Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel
title_full_unstemmed	Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel
title_sort	multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/29ed89e79584439cb7bcd61b21321872
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Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel

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