Strengthening effect of NiAl and Ni3Ti precipitates in Co-free maraging steels

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Strengthening effect of NiAl and Ni3Ti precipitates in Co-free maraging steels. / Zeisl, Stefan; Van Steenberge, N.; Schnitzer, Ronald.
In: Journal of materials science, Vol. 58.2023, No. April, 19.04.2023, p. 7149–7160.

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Zeisl S, Van Steenberge N, Schnitzer R. Strengthening effect of NiAl and Ni3Ti precipitates in Co-free maraging steels. Journal of materials science. 2023 Apr 19;58.2023(April):7149–7160. doi: 10.1007/s10853-023-08472-w

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@article{36daf29e247f4befb24796efe075066b,
title = "Strengthening effect of NiAl and Ni3Ti precipitates in Co-free maraging steels",
abstract = "One class of maraging steels are strengthened by a combination of β-NiAl and η-Ni3Ti intermetallic phases which are precipitated during an aging heat treatment. To establish a meaningful structure-property relationship the precipitation strengthening effect from each phase must be isolated from the other strengthening mechanisms. To achieve this, a series of model alloys based on the Fe-12Ni alloy system were aged and characterized to determine the precipitation strengthening effect. In the course of this study, using a new approach, atom probe tomography was used to determine the spacing between precipitates and to calculate the individual strength contribution of the β and the η phase using a model describing the precipitate-dislocation interactions. It was found that the precipitation strengthening of the combined β and η phases is close to 1000 MPa and that the relative strengthening effect of each phase is sensitive to the Ti and Al concentration.",
author = "Stefan Zeisl and {Van Steenberge}, N. and Ronald Schnitzer",
year = "2023",
month = apr,
day = "19",
doi = "10.1007/s10853-023-08472-w",
language = "English",
volume = "58.2023",
pages = "7149–7160",
journal = "Journal of materials science",
issn = "0022-2461",
publisher = "Springer Netherlands",
number = "April",

}

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TY - JOUR

T1 - Strengthening effect of NiAl and Ni3Ti precipitates in Co-free maraging steels

AU - Zeisl, Stefan

AU - Van Steenberge, N.

AU - Schnitzer, Ronald

PY - 2023/4/19

Y1 - 2023/4/19

N2 - One class of maraging steels are strengthened by a combination of β-NiAl and η-Ni3Ti intermetallic phases which are precipitated during an aging heat treatment. To establish a meaningful structure-property relationship the precipitation strengthening effect from each phase must be isolated from the other strengthening mechanisms. To achieve this, a series of model alloys based on the Fe-12Ni alloy system were aged and characterized to determine the precipitation strengthening effect. In the course of this study, using a new approach, atom probe tomography was used to determine the spacing between precipitates and to calculate the individual strength contribution of the β and the η phase using a model describing the precipitate-dislocation interactions. It was found that the precipitation strengthening of the combined β and η phases is close to 1000 MPa and that the relative strengthening effect of each phase is sensitive to the Ti and Al concentration.

AB - One class of maraging steels are strengthened by a combination of β-NiAl and η-Ni3Ti intermetallic phases which are precipitated during an aging heat treatment. To establish a meaningful structure-property relationship the precipitation strengthening effect from each phase must be isolated from the other strengthening mechanisms. To achieve this, a series of model alloys based on the Fe-12Ni alloy system were aged and characterized to determine the precipitation strengthening effect. In the course of this study, using a new approach, atom probe tomography was used to determine the spacing between precipitates and to calculate the individual strength contribution of the β and the η phase using a model describing the precipitate-dislocation interactions. It was found that the precipitation strengthening of the combined β and η phases is close to 1000 MPa and that the relative strengthening effect of each phase is sensitive to the Ti and Al concentration.

U2 - 10.1007/s10853-023-08472-w

DO - 10.1007/s10853-023-08472-w

M3 - Article

VL - 58.2023

SP - 7149

EP - 7160

JO - Journal of materials science

JF - Journal of materials science

SN - 0022-2461

IS - April

ER -