In-situ observation of microcrack initiation and damage nucleation modes on the HAZ of laser-welded DP1180 joint

J Xue, W Guo, J Yang, M Xia, G Zhao, C Tan… - Journal of Materials …, 2023 - Elsevier
In-situ SEM can intuitively observe the changes in microstructure and microcrack initiation
during the deformation process of the specimen. In this paper, the microstructural evolution …

Microstructure-and damage-nucleation-based crystal plasticity finite element modeling for the nucleation of multi-type voids during plastic deformation of Al alloys

PF Gao, MY Fei, M Zhan, MW Fu - International Journal of Plasticity, 2023 - Elsevier
During deformation of aluminum (Al) alloys, there are three kinds of voids being formed by
distinct mechanisms, ie, matrix-cracking voids (MCVs), particle-cracking voids (PCVs), and …

[HTML][HTML] Dual-phase hetero-structured strategy to improve ductility of a low carbon martensitic steel

JX Huang, Y Liu, T Xu, XF Chen, QQ Lai… - Materials Science and …, 2022 - Elsevier
Martensitic transformation significantly increases the strength of low-carbon steels, while it is
usually at expense of the formability and ductility. In order to further improve the mechanical …

A probabilistic mean-field and microstructure based finite element modeling for predicting mechanical and ductile fracture behavior of the cast aluminum alloy

W Jeong, C Kim, CA Lee, HJ Bong, SH Hong… - International Journal of …, 2022 - Elsevier
A multiscale finite element simulation approach based on the probabilistic mean-field
method is proposed to predict the strength and ductile fracture of the cast aluminum (Al) …

The effect of vanadium on microstrain partitioning and localized damage during deformation of unnotched and notched DP1300 steels

C Pelligra, J Samei, J Kang, DS Wilkinson - International Journal of …, 2022 - Elsevier
The use of vanadium-microalloying in ultrahigh strength dual phase (DP) steels has been
shown to yield a fine dispersion of nano-scale vanadium carbonitrides (V (C, N)) in ferrite …

Towards ultra-high strength dual-phase steel with excellent damage tolerance: The effect of martensite volume fraction

L Liu, L Li, Z Liang, M Huang, Z Peng, J Gao… - International Journal of …, 2023 - Elsevier
Abstract Ultra-high strength (> 1 GPa) dual-phase (DP) steels have been extensively
investigated in literature. Yet, the damage tolerance of these DP steels remains mostly …

Strengthening and ductilization of laminate dual-phase steels with high martensite content

B Gao, R Hu, Z Pan, X Chen, Y Liu, L Xiao… - Journal of Materials …, 2021 - Elsevier
The steels with excellent strength and ductility are expected to be achieved by tailoring the
microstructural features. In this work, laminate dual-phase (DP) steels with high martensite …

Mesoscopic origin of damage nucleation in dual-phase steels

A Tang, H Liu, R Chen, G Liu, Q Lai, Y Zhong… - International Journal of …, 2021 - Elsevier
The damage modes in ferrite-martensite dual-phase (DP) steels include ferrite grain
boundary (F/F) decohesion, ferrite/martensite interface (F/M) decohesion and martensite …

Influence of strength and notch shape on crack initiation and propagation behavior of advanced high strength steel sheets

M Omiya, S Arakawa, Z Yao, M Muramatsu… - Engineering Fracture …, 2022 - Elsevier
Advanced high-strength steels (AHSSs) are widely adopted in car body structures to achieve
weight reduction for energy efficiency and crash safety. This study investigates the effects of …

Predictive dual-scale finite element simulation for hole expansion failure of ferrite-bainite steel

S Park, J Jung, W Cho, BS Jeong, H Na, SI Kim… - International Journal of …, 2021 - Elsevier
A dual-scale finite element model is proposed to investigate the failure of ferrite-bainite (FB)
dual-phase steel in the hole expansion test. The first level simulation solves the elastic …