Strengthening due to coherent Cr precipitates in Fe–Cr alloys: Atomistic simulations and theoretical models

Dmitry Terentyev; Giovanni Bonny; Lorenzo Malerba; Rachid Chaouadi

doi:10.1016/j.actamat.2008.03.004

Strengthening due to coherent Cr precipitates in Fe–Cr alloys: Atomistic simulations and theoretical models

Dmitry Terentyev, Giovanni Bonny, Lorenzo Malerba, Rachid Chaouadi

Research output › peer-review

Abstract

Atomistic simulations were carried out to study the interaction of dislocations with Cr precipitates in body-centered cubic Fe and Fe– 10%Cr at 0 K. The results are compared with predictions of theoretical models accounting for precipitate strengthening based on different mechanisms. It is shown that solute hardening (in Fe–Cr matrix) and precipitate hardening can be considered, as a good approximation, to be additive effects.

Original language	English
Pages (from-to)	3229-3235
Journal	Acta Materialia
Volume	56
Issue number	13
DOIs	https://doi.org/10.1016/j.actamat.2008.03.004
State	Published - 1 Mar 2008

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Cite this

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abstract = "Atomistic simulations were carried out to study the interaction of dislocations with Cr precipitates in body-centered cubic Fe and Fe– 10%Cr at 0 K. The results are compared with predictions of theoretical models accounting for precipitate strengthening based on different mechanisms. It is shown that solute hardening (in Fe–Cr matrix) and precipitate hardening can be considered, as a good approximation, to be additive effects.",

keywords = "Ferritic steels, Precipitates, Strengthening, Ageing",

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AU - Bonny, Giovanni

AU - Malerba, Lorenzo

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AB - Atomistic simulations were carried out to study the interaction of dislocations with Cr precipitates in body-centered cubic Fe and Fe– 10%Cr at 0 K. The results are compared with predictions of theoretical models accounting for precipitate strengthening based on different mechanisms. It is shown that solute hardening (in Fe–Cr matrix) and precipitate hardening can be considered, as a good approximation, to be additive effects.

KW - Ferritic steels

KW - Precipitates

KW - Strengthening

KW - Ageing

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