Effect of W and N on mechanical properties of reduced activation ferritic/martensitic EUROFER-based steel grades

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Effect of W and N on mechanical properties of reduced activation ferritic/martensitic EUROFER-based steel grades. / Puype, Athina; Malerba, Lorenzo; De Wispelaere, Nico; Petrov, Roumen; Sietsma, Jilt.

In: Journal of Nuclear Materials, Vol. 502, 13.02.2018, p. 282-288.

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Puype, A, Malerba, L, De Wispelaere, N, Petrov, R & Sietsma, J 2018, 'Effect of W and N on mechanical properties of reduced activation ferritic/martensitic EUROFER-based steel grades' Journal of Nuclear Materials, vol 502, pp. 282-288. DOI: 10.1016/j.jnucmat.2018.02.017

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Vancouver

Puype A, Malerba L, De Wispelaere N, Petrov R, Sietsma J. Effect of W and N on mechanical properties of reduced activation ferritic/martensitic EUROFER-based steel grades. Journal of Nuclear Materials. 2018 Feb 13;502:282-288. Available from, DOI: 10.1016/j.jnucmat.2018.02.017

Author

Puype, Athina; Malerba, Lorenzo; De Wispelaere, Nico; Petrov, Roumen; Sietsma, Jilt / Effect of W and N on mechanical properties of reduced activation ferritic/martensitic EUROFER-based steel grades.

In: Journal of Nuclear Materials, Vol. 502, 13.02.2018, p. 282-288.

Research output: Contribution to journalArticle

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@article{7832f7573480474fa1118aaef3708a7d,
title = "Effect of W and N on mechanical properties of reduced activation ferritic/martensitic EUROFER-based steel grades",
keywords = "martensitic steel, Behavior",
author = "Athina Puype and Lorenzo Malerba and {De Wispelaere}, Nico and Roumen Petrov and Jilt Sietsma",
note = "Score=10",
year = "2018",
month = "2",
doi = "10.1016/j.jnucmat.2018.02.017",
volume = "502",
pages = "282--288",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",

}

RIS - Download

TY - JOUR

T1 - Effect of W and N on mechanical properties of reduced activation ferritic/martensitic EUROFER-based steel grades

AU - Puype,Athina

AU - Malerba,Lorenzo

AU - De Wispelaere,Nico

AU - Petrov,Roumen

AU - Sietsma,Jilt

N1 - Score=10

PY - 2018/2/13

Y1 - 2018/2/13

N2 - The C, N, and W content in EUROFER97, a 9CrWVTa reduced-activation ferritic/martensitic (RAFM) steel, was varied to obtain an experimental assessment of the main effects of the compositional variation on the mechanical properties and microstructural characteristics of six different experimental grades. Light optical microscopy (LOM) and electron back-scattered diffraction (EBSD) revealed in almost all cases a fine tempered lath martensite structure. Analyses of transmission electron micrographs, together with inductively coupled plasma mass spectrometry (ICPMS) and energy-dispersive x-ray spectroscopy (EDS) data, shows the precipitation state and spatial distribution of MxCy (M ¼ Cr, W and Fe) and MX (M ¼ V and/or Ta, X ¼C or N) carbonitrides within the matrix. The mechanical characterization of the six different steel grades was carried out by means of A50 tensile testing and Charpy tests on standard specimens (55 10 10mm3). Lowering the carbon content and keeping the nitrogen content higher than 0.02 wt%, leads to a reduction of the ductile-to-brittle-transition-temperature (DBTT) in comparison with EUROFER97-2. The addition of tungsten further reduces the DBTT to - 94 C, while maintaining good tensile strength and elongation.

AB - The C, N, and W content in EUROFER97, a 9CrWVTa reduced-activation ferritic/martensitic (RAFM) steel, was varied to obtain an experimental assessment of the main effects of the compositional variation on the mechanical properties and microstructural characteristics of six different experimental grades. Light optical microscopy (LOM) and electron back-scattered diffraction (EBSD) revealed in almost all cases a fine tempered lath martensite structure. Analyses of transmission electron micrographs, together with inductively coupled plasma mass spectrometry (ICPMS) and energy-dispersive x-ray spectroscopy (EDS) data, shows the precipitation state and spatial distribution of MxCy (M ¼ Cr, W and Fe) and MX (M ¼ V and/or Ta, X ¼C or N) carbonitrides within the matrix. The mechanical characterization of the six different steel grades was carried out by means of A50 tensile testing and Charpy tests on standard specimens (55 10 10mm3). Lowering the carbon content and keeping the nitrogen content higher than 0.02 wt%, leads to a reduction of the ductile-to-brittle-transition-temperature (DBTT) in comparison with EUROFER97-2. The addition of tungsten further reduces the DBTT to - 94 C, while maintaining good tensile strength and elongation.

KW - martensitic steel

KW - Behavior

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/35807053

U2 - 10.1016/j.jnucmat.2018.02.017

DO - 10.1016/j.jnucmat.2018.02.017

M3 - Article

VL - 502

SP - 282

EP - 288

JO - Journal of Nuclear Materials

T2 - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -

ID: 5659258