Understanding plasticity in multiphase quenching & partitioning steels: Insights from crystal plasticity with stress state-dependent martensitic transformation

Park, Jinheung1,2; Hou, Yong1,2; Min, Junying3; Hou, Zeran3; Han, Heung Nam1,2; He, Binbin4; Lee, Myoung-Gyu1,2

2024-09-01

10.1016/j.ijplas.2024.104075

INTERNATIONAL JOURNAL OF PLASTICITY   影响因子和分区

0749-6419

1879-2154

This study develops a novel crystal plasticity (CP) model incorporating deformation-induced martensitic transformation (DIMT) and transformation-induced plasticity (TRIP) effect to predict the complex interplay between microstructural evolution and mechanical behavior in a third- generation advanced high-strength steel QP980. This model introduces phenomenological theory of martensite crystallography (PTMC) based TRIP theory and DIMT kinetics grounded on nucleation-controlled phenomenon. Notably, the DIMT model is improved by utilizing a geometric approach for calculating shear band intersections. A virtual multiphase representative volume element (RVE) based on the Voronoi tessellation is generated for the QP980 steel, which comprises ferrite, martensite, and retained austenite (RA). The study highlights how phase transformation affects mechanical properties, notably the strengthening from transformed martensite and the mechanical alterations in RA due to the TRIP effect. The DIMT kinetics dependent on stress states such as uniaxial tension (UT), uniaxial compression (UC), plane strain tension (PST), and equi-biaxial tension (EBT) are analyzed using the developed model. The role of microstructural surroundings on martensitic transformation is also examined. Furthermore, analysis under biaxial loading angles using the model reveals an asymmetric yield surface, with more pronounced changes in yield stress in the tensile region due to accelerated transformation behaviors, as opposed to the more gradual transformations in the compressive region. This study provides valuable insights into the deformation mechanisms of the third-generation advanced high-strength steels including relationship between plastic anisotropy, transformation kinetics, and microstructural evolution.

Crystal plasticity Quenching and partitioning steel Martensitic transformation TRIP effect Stress state Yield surface

SCI ; EI

英语

其他

National Research Foundation (NRF) of Korea[2022R1A2C2009315] ; NRF of Korea[2021M3H4A6A01045764] ; National Natural Science Foundation of China[52105395]

Engineering ; Materials Science ; Mechanics

Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics

WOS:001282453100001

PERGAMON-ELSEVIER SCIENCE LTD

20243116772178

Dislocations (crystals) ; High strength steel ; Kinetics ; Martensite ; Plasticity ; Quenching ; Strain ; Strain hardening ; Stress analysis ; Transformation Induced Plasticity steel ; Twinning ; Yield stress

Metallography:531.2 ; Heat Treatment Processes:537.1 ; Steel:545.3 ; Fluid Flow, General:631.1 ; Classical Physics; Quantum Theory; Relativity:931 ; Crystal Growth:933.1.2 ; Materials Science:951

ENGINEERING

Web of Science

1.Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 08826, South Korea
2.Seoul Natl Univ, RIAM, Seoul 08826, South Korea
3.Tongji Univ, Sch Mech Engn, Shanghai, Peoples R China
4.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Park, Jinheung,Hou, Yong,Min, Junying,et al. Understanding plasticity in multiphase quenching & partitioning steels: Insights from crystal plasticity with stress state-dependent martensitic transformation[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2024,180.

Park, Jinheung.,Hou, Yong.,Min, Junying.,Hou, Zeran.,Han, Heung Nam.,...&Lee, Myoung-Gyu.(2024).Understanding plasticity in multiphase quenching & partitioning steels: Insights from crystal plasticity with stress state-dependent martensitic transformation.INTERNATIONAL JOURNAL OF PLASTICITY,180.

Park, Jinheung,et al."Understanding plasticity in multiphase quenching & partitioning steels: Insights from crystal plasticity with stress state-dependent martensitic transformation".INTERNATIONAL JOURNAL OF PLASTICITY 180(2024).