An integrated experimental-numerical study of martensite/ferrite interface damage initiation in dual-phase steels

Lei Liu; Francesco Maresca; Tijmen Vermeij; Johan P.M. Hoefnagels; Marc G.D. Geers; Varvara G. Kouznetsova

doi:10.1016/j.scriptamat.2023.115798

An integrated experimental-numerical study of martensite/ferrite interface damage initiation in dual-phase steels

Lei Liu
, Francesco Maresca
, Tijmen Vermeij
, Johan P.M. Hoefnagels
, Marc G.D. Geers
, Varvara G. Kouznetsova (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

20 Citaten (Scopus)

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Martensite/ferrite (M/F) interface damage is relevant to failure of many dual-phase (DP) steels, but the underlying microscale mechanisms remain unclear. Through an integrated experimental-numerical study, this work examines the recent hypothesis that (lath) martensite substructure boundary sliding triggers and dominates M/F interface damage initiation accompanied by apparent martensite plasticity. The mesoscale morphology and prior austenite grain reconstruction are used as modelling inputs. A multi-scale framework is adopted to predict the interface damage initiation. The M/F interface damage initiation sites predicted by the model based on a sliding-triggered interface damage mechanism adequately agree with those identified from in-situ experiments,
confirming the key role of substructure boundary sliding. Moreover, the M/F interface damage initiation strongly correlates with a low M/F strain partitioning rather than the commonly accepted strong M/F strain partitioning. This fundamental understanding is instrumental for the future optimization of DP steel microstructures.

Originele taal-2	Engels
Artikelnummer	115798
Aantal pagina's	10
Tijdschrift	Scripta Materialia
Volume	239
DOI's	https://doi.org/10.1016/j.scriptamat.2023.115798
Status	Gepubliceerd - 15 jan 2024

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Recent crystal plasticity simulations [39] indicated that the substructure boundary sliding might also trigger and dominate M/F interface damage initiation upon the occurrence of apparent martensite plasticity. This sliding-triggered interface damage mechanism has been supported by experimental observations [40] . In this work, an integrated experimental-numerical study is conducted to examine this hypothesis [39] and gain further insights for the interface damage initiation. The interface damage initiation is predicted numerically by applying the recently developed multi-scale framework [41] on the experimental mesoscale morphology and crystallography. The predicted damage initiation sites are compared against those observed in the experiments.

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@article{1a2083aaa63643e79f7e609e63939291,

title = "An integrated experimental-numerical study of martensite/ferrite interface damage initiation in dual-phase steels",

abstract = "Martensite/ferrite (M/F) interface damage is relevant to failure of many dual-phase (DP) steels, but the underlying microscale mechanisms remain unclear. Through an integrated experimental-numerical study, this work examines the recent hypothesis that (lath) martensite substructure boundary sliding triggers and dominates M/F interface damage initiation accompanied by apparent martensite plasticity. The mesoscale morphology and prior austenite grain reconstruction are used as modelling inputs. A multi-scale framework is adopted to predict the interface damage initiation. The M/F interface damage initiation sites predicted by the model based on a sliding-triggered interface damage mechanism adequately agree with those identified from in-situ experiments, confirming the key role of substructure boundary sliding. Moreover, the M/F interface damage initiation strongly correlates with a low M/F strain partitioning rather than the commonly accepted strong M/F strain partitioning. This fundamental understanding is instrumental for the future optimization of DP steel microstructures.",

keywords = "Damage initiation, Dual-phase steel, Experimental-numerical study, Martensite/ferrite interface, Substructure boundary sliding",

author = "Lei Liu and Francesco Maresca and Tijmen Vermeij and Hoefnagels, \{Johan P.M.\} and Geers, \{Marc G.D.\} and Kouznetsova, \{Varvara G.\}",

year = "2024",

month = jan,

day = "15",

doi = "10.1016/j.scriptamat.2023.115798",

language = "English",

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AU - Liu, Lei

AU - Maresca, Francesco

AU - Vermeij, Tijmen

AU - Hoefnagels, Johan P.M.

AU - Geers, Marc G.D.

AU - Kouznetsova, Varvara G.

PY - 2024/1/15

Y1 - 2024/1/15

N2 - Martensite/ferrite (M/F) interface damage is relevant to failure of many dual-phase (DP) steels, but the underlying microscale mechanisms remain unclear. Through an integrated experimental-numerical study, this work examines the recent hypothesis that (lath) martensite substructure boundary sliding triggers and dominates M/F interface damage initiation accompanied by apparent martensite plasticity. The mesoscale morphology and prior austenite grain reconstruction are used as modelling inputs. A multi-scale framework is adopted to predict the interface damage initiation. The M/F interface damage initiation sites predicted by the model based on a sliding-triggered interface damage mechanism adequately agree with those identified from in-situ experiments, confirming the key role of substructure boundary sliding. Moreover, the M/F interface damage initiation strongly correlates with a low M/F strain partitioning rather than the commonly accepted strong M/F strain partitioning. This fundamental understanding is instrumental for the future optimization of DP steel microstructures.

AB - Martensite/ferrite (M/F) interface damage is relevant to failure of many dual-phase (DP) steels, but the underlying microscale mechanisms remain unclear. Through an integrated experimental-numerical study, this work examines the recent hypothesis that (lath) martensite substructure boundary sliding triggers and dominates M/F interface damage initiation accompanied by apparent martensite plasticity. The mesoscale morphology and prior austenite grain reconstruction are used as modelling inputs. A multi-scale framework is adopted to predict the interface damage initiation. The M/F interface damage initiation sites predicted by the model based on a sliding-triggered interface damage mechanism adequately agree with those identified from in-situ experiments, confirming the key role of substructure boundary sliding. Moreover, the M/F interface damage initiation strongly correlates with a low M/F strain partitioning rather than the commonly accepted strong M/F strain partitioning. This fundamental understanding is instrumental for the future optimization of DP steel microstructures.

KW - Damage initiation

KW - Dual-phase steel

KW - Experimental-numerical study

KW - Martensite/ferrite interface

KW - Substructure boundary sliding

UR - https://www.scopus.com/pages/publications/85174062259

U2 - 10.1016/j.scriptamat.2023.115798

DO - 10.1016/j.scriptamat.2023.115798

M3 - Article

SN - 1359-6462

VL - 239

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 115798

ER -

An integrated experimental-numerical study of martensite/ferrite interface damage initiation in dual-phase steels

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