Anomalous Low-Temperature Toughening in 2 GPa Ultrahigh-Strength Steel by Synergistic Effect of Delamination and TRIP

Biaobiao Wang; Zhongyuan Ren; Jiayu Wang; Yao Lu; Zhao Lei; Liang Zhen; Li Liu

doi:10.1007/s11661-026-08297-7

Anomalous Low-Temperature Toughening in 2 GPa Ultrahigh-Strength Steel by Synergistic Effect of Delamination and TRIP

Biaobiao Wang
, Zhongyuan Ren
, Jiayu Wang
, Yao Lu
, Zhao Lei
, Liang Zhen
, Li Liu^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology (Shenzhen)
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

A novel deformed and partitioned steel with a layered duplex microstructure demonstrates a simultaneous increase in both strength and toughness as temperature decreases, attaining an unprecedented combination of strength (2.1 GPa) and toughness (104 MPa m^1/2) at − 78.5 °C. Synergistic effects of delamination-induced stress relaxation and transformation-induced plasticity-mediated crack closure promote anomalous toughening. This coupled intrinsic/extrinsic toughening mechanisms induced by hetero-structure address the low-temperature toughness challenge in ultrahigh-strength steels. (Figure presented.).

Original language	English
Pages (from-to)	4111-4118
Number of pages	8
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	57
Issue number	9
DOIs	https://doi.org/10.1007/s11661-026-08297-7
State	Published - Sep 2026

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@article{42bcf9b069394d0b84b5a58fdc7d1e19,

title = "Anomalous Low-Temperature Toughening in 2 GPa Ultrahigh-Strength Steel by Synergistic Effect of Delamination and TRIP",

abstract = "A novel deformed and partitioned steel with a layered duplex microstructure demonstrates a simultaneous increase in both strength and toughness as temperature decreases, attaining an unprecedented combination of strength (2.1 GPa) and toughness (104 MPa m1/2) at − 78.5 °C. Synergistic effects of delamination-induced stress relaxation and transformation-induced plasticity-mediated crack closure promote anomalous toughening. This coupled intrinsic/extrinsic toughening mechanisms induced by hetero-structure address the low-temperature toughness challenge in ultrahigh-strength steels. (Figure presented.).",

author = "Biaobiao Wang and Zhongyuan Ren and Jiayu Wang and Yao Lu and Zhao Lei and Liang Zhen and Li Liu",

note = "Publisher Copyright: {\textcopyright} The Minerals, Metals \& Materials Society and ASM International 2026.",

year = "2026",

month = sep,

doi = "10.1007/s11661-026-08297-7",

language = "英语",

volume = "57",

pages = "4111--4118",

journal = "Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science",

issn = "1073-5623",

publisher = "Springer",

number = "9",

}

Anomalous Low-Temperature Toughening in 2 GPa Ultrahigh-Strength Steel by Synergistic Effect of Delamination and TRIP. / Wang, Biaobiao; Ren, Zhongyuan; Wang, Jiayu et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 57, No. 9, 09.2026, p. 4111-4118.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Anomalous Low-Temperature Toughening in 2 GPa Ultrahigh-Strength Steel by Synergistic Effect of Delamination and TRIP

AU - Wang, Biaobiao

AU - Ren, Zhongyuan

AU - Wang, Jiayu

AU - Lu, Yao

AU - Lei, Zhao

AU - Zhen, Liang

AU - Liu, Li

PY - 2026/9

Y1 - 2026/9

N2 - A novel deformed and partitioned steel with a layered duplex microstructure demonstrates a simultaneous increase in both strength and toughness as temperature decreases, attaining an unprecedented combination of strength (2.1 GPa) and toughness (104 MPa m1/2) at − 78.5 °C. Synergistic effects of delamination-induced stress relaxation and transformation-induced plasticity-mediated crack closure promote anomalous toughening. This coupled intrinsic/extrinsic toughening mechanisms induced by hetero-structure address the low-temperature toughness challenge in ultrahigh-strength steels. (Figure presented.).

AB - A novel deformed and partitioned steel with a layered duplex microstructure demonstrates a simultaneous increase in both strength and toughness as temperature decreases, attaining an unprecedented combination of strength (2.1 GPa) and toughness (104 MPa m1/2) at − 78.5 °C. Synergistic effects of delamination-induced stress relaxation and transformation-induced plasticity-mediated crack closure promote anomalous toughening. This coupled intrinsic/extrinsic toughening mechanisms induced by hetero-structure address the low-temperature toughness challenge in ultrahigh-strength steels. (Figure presented.).

UR - https://www.scopus.com/pages/publications/105043758426

U2 - 10.1007/s11661-026-08297-7

DO - 10.1007/s11661-026-08297-7

M3 - 文章

AN - SCOPUS:105043758426

SN - 1073-5623

VL - 57

SP - 4111

EP - 4118

JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

IS - 9

ER -

Anomalous Low-Temperature Toughening in 2 GPa Ultrahigh-Strength Steel by Synergistic Effect of Delamination and TRIP

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