Standard

Self healing of creep damage in iron-based alloys by supersaturated tungsten. / Fang, H.; Szymanski, N.; Versteylen, C. D.; Cloetens, P.; Kwakernaak, C.; Sloof, W. G.; Tichelaar, F. D.; Balachandran, S.; Herbig, M.; Brück, E.; van der Zwaag, S.; van Dijk, N. H.

In: Acta Materialia, Vol. 166, 2019, p. 531-542.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

Fang, H. ; Szymanski, N. ; Versteylen, C. D. ; Cloetens, P. ; Kwakernaak, C. ; Sloof, W. G. ; Tichelaar, F. D. ; Balachandran, S. ; Herbig, M. ; Brück, E. ; van der Zwaag, S. ; van Dijk, N. H. / Self healing of creep damage in iron-based alloys by supersaturated tungsten. In: Acta Materialia. 2019 ; Vol. 166. pp. 531-542.

BibTeX

@article{4b0820a55fd64fe5bffc5da2ed9748e9,
title = "Self healing of creep damage in iron-based alloys by supersaturated tungsten",
abstract = "When metals are mechanically loaded at elevated temperatures for extended periods of time, creep damage will occur in the form of cavities at grain boundaries. In the present experiments it is demonstrated that in binary iron-tungsten alloys creep damage can be self healed by selective precipitation of a W-rich phase inside these cavities. Using synchrotron X-ray nano-tomography the simultaneous evolution of creep cavitation and precipitation is visualized in 3D images with a resolution down to 30 nm. The degree of filling by precipitation is analysed for a large collection of individual creep cavities. Two clearly different types of behaviour are observed for isolated and linked cavities, where the isolated cavities can be filled completely, while the linked cavities continue to grow. The demonstrated self-healing potential of tungsten in iron-based metal alloys provides a new perspective on the role of W in high-temperature creep-resistant steels.",
keywords = "Creep damage, Self-healing, Steel, Synchrotron radiation, Tomography",
author = "H. Fang and N. Szymanski and Versteylen, {C. D.} and P. Cloetens and C. Kwakernaak and Sloof, {W. G.} and Tichelaar, {F. D.} and S. Balachandran and M. Herbig and E. Br{\"u}ck and {van der Zwaag}, S. and {van Dijk}, {N. H.}",
note = "Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.",
year = "2019",
doi = "10.1016/j.actamat.2019.01.014",
language = "English",
volume = "166",
pages = "531--542",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Self healing of creep damage in iron-based alloys by supersaturated tungsten

AU - Fang, H.

AU - Szymanski, N.

AU - Versteylen, C. D.

AU - Cloetens, P.

AU - Kwakernaak, C.

AU - Sloof, W. G.

AU - Tichelaar, F. D.

AU - Balachandran, S.

AU - Herbig, M.

AU - Brück, E.

AU - van der Zwaag, S.

AU - van Dijk, N. H.

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2019

Y1 - 2019

N2 - When metals are mechanically loaded at elevated temperatures for extended periods of time, creep damage will occur in the form of cavities at grain boundaries. In the present experiments it is demonstrated that in binary iron-tungsten alloys creep damage can be self healed by selective precipitation of a W-rich phase inside these cavities. Using synchrotron X-ray nano-tomography the simultaneous evolution of creep cavitation and precipitation is visualized in 3D images with a resolution down to 30 nm. The degree of filling by precipitation is analysed for a large collection of individual creep cavities. Two clearly different types of behaviour are observed for isolated and linked cavities, where the isolated cavities can be filled completely, while the linked cavities continue to grow. The demonstrated self-healing potential of tungsten in iron-based metal alloys provides a new perspective on the role of W in high-temperature creep-resistant steels.

AB - When metals are mechanically loaded at elevated temperatures for extended periods of time, creep damage will occur in the form of cavities at grain boundaries. In the present experiments it is demonstrated that in binary iron-tungsten alloys creep damage can be self healed by selective precipitation of a W-rich phase inside these cavities. Using synchrotron X-ray nano-tomography the simultaneous evolution of creep cavitation and precipitation is visualized in 3D images with a resolution down to 30 nm. The degree of filling by precipitation is analysed for a large collection of individual creep cavities. Two clearly different types of behaviour are observed for isolated and linked cavities, where the isolated cavities can be filled completely, while the linked cavities continue to grow. The demonstrated self-healing potential of tungsten in iron-based metal alloys provides a new perspective on the role of W in high-temperature creep-resistant steels.

KW - Creep damage

KW - Self-healing

KW - Steel

KW - Synchrotron radiation

KW - Tomography

UR - http://www.scopus.com/inward/record.url?scp=85060089026&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2019.01.014

DO - 10.1016/j.actamat.2019.01.014

M3 - Article

VL - 166

SP - 531

EP - 542

JO - Acta Materialia

T2 - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

ER -

ID: 50746118