Crystal plasticity simulation of in-grain microstructural evolution during large deformation of IF-steel

Sedighiani, Karo; Τράκα, Κωνσταντίνα; Roters, Franz; Sietsma, Jilt; Raabe, Dierk; Diehl, Martin

doi:10.1016/j.actamat.2022.118167

Cited by 26 publications

(4 citation statements)

References 73 publications

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“…The ASB propagating paths and velocity can also be examined more extensively, as they are affected by the loading type and respective stress states, as in the case of BMGs, which can be analyzed further by implementing crystal plasticity models [206] and molecular dynamic simulations [77,[131][132][133], whose investigation remains shallow. In this direction, the effect of dynamic strain aging on shear localization can be studied, focusing on the interaction between solute atoms and dislocations.…”

Section: Asb Propagationmentioning

confidence: 99%

A Review on the Adiabatic Shear Banding Mechanism in Metals and Alloys Considering Microstructural Characteristics, Morphology and Fracture

Karantza,

Manolakos

2023

Metals

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The current review work studies the adiabatic shear banding (ASB) mechanism in metals and alloys, focusing on its microstructural characteristics, dominant evolution mechanisms and final fracture. An ASB reflects a thermomechanical deformation instability developed under high strain and strain rates, finally leading to dynamic fracture. An ASB initially occurs under severe shear localization, followed by a significant rise in temperature due to high strain rate adiabatic conditions. That temperature increase activates thermal softening and mechanical degradation mechanisms, reacting to strain instability and facilitating micro-voiding, which, through its coalescence, results in cracking failure. This work aims to summarize and review the critical characteristics of an ASB’s microstructure and morphology, evolution mechanisms, the propensity of materials against an ASB and fracture mechanisms in order to highlight their stage-by-stage evolution and attribute them a more consecutive behavior rather than an uncontrollable one. In that way, this study focuses on underlining some ASB aspects that remain fuzzy, allowing for further research, such as research on the interaction between thermal and damage softening regarding their contribution to ASB evolution, the conversion of strain energy to internal heat, which proved to be material-dependent instead of constant, and the strain rate sensitivity effect, which also concerns whether the temperature rise reflects a precursor or a result of ASB. Except for conventional metals and alloys like steels (low carbon, stainless, maraging, armox, ultra-high-strength steels, etc.), titanium alloys, aluminum alloys, magnesium alloys, nickel superalloys, uranium alloys, zirconium alloys and pure copper, the ASB propensity of nanocrystalline and ultrafine-grained materials, metallic-laminated composites, bulk metallic glasses and high-entropy alloys is also evaluated. Finally, the need to develop a micro-/macroscopic coupling during the thermomechanical approach to the ASB phenomenon is pointed out, highlighting the interaction between microstructural softening mechanisms and macroscopic mechanical behavior during ASB evolution and fracture.

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Section: Asb Propagationmentioning

confidence: 99%

A Review on the Adiabatic Shear Banding Mechanism in Metals and Alloys Considering Microstructural Characteristics, Morphology and Fracture

Karantza,

Manolakos

2023

Metals

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“…Given all complexities involved in phenomenon of fragmentations, the modeling by means of crystal plasticity finite element (CPFE) technique is the most promising now [19][20][21]107]. At the present stage of development, even this approach seems unable to reproduce key features of the fragmentation patterns, which were considered in the review.…”

Section: Modeling Of Grain Fragmentationmentioning

confidence: 99%

“…The microstructures developed under large strains governs work hardening behavior and other properties of metals and alloys [18][19][20]. Besides, highly misoriented elements of the deformation microstructure serve as nuclei N. Zolotorevsky: Patterns of grain fragmentation during plastic deformation of metals… 2 Reviews on Advanced Materials and Technologies, 2024, vol.…”

Section: Introductionmentioning

confidence: 99%

Patterns of Grain Fragmentation During Plastic Deformation of Metals at Small to Medium Strains (Brief Review)

Zolotorevsky

2024

Rev. Adv. Mater. Technol.

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The review is devoted to the phenomenon of fragmentation: the subdivision of initial grains into highly misoriented crystallites in the process of plastic deformation. The investigations performed mostly during last two decades were considered and, in doing so, the early stages of fragmented microstructure evolution were of interest. Characteristics of regular cell block structure, described repeatedly before, were specified on the basis of more recent investigations, in particular, its orientation dependence and the development of primary and secondary microbands. The large-scale manifestations of grain subdivision, zones of intense fragmentation as well as the evolution of misorientation angle distribution with increasing strain and changing deformation conditions were also considered. Finally, the modeling of fragmentation is discussed briefly.

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“…Mechanical properties of polycrystalline metals are definitely related to their mcrostructures, like grain size, dislocation distribution, and crystal orientation [3][4][5]. Among the different steel grades, interstitial free (IF) steel finds an important position in the automotive industry owing to its good deep drawability, which is achieved through a strong normal direction (ND) fiber recrystallization texture formed during the annealing process [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and texture development during annealing in UF340

Li,

Guan,

et al. 2023

J. Phys.: Conf. Ser.

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UF340 is a new type of cold-rolled fine grain high-strength steel with excellent formability developed by Shougang Co., Ltd Company. In this paper, the formation mechanism of recrystallisation texture of UF340 during annealing at 720 °C were systematically investigated. The as-received cold rolled sheet displayed a pronounced α-fiber texture together with a weak γ-fiber texture. With increasing annealing time, recrystallization occurred in the elongated grains, γ-fiber texture grains generated and grew up gradually. The texture component of the original α-fiber grains shift toward {112} <110>, {023} <100>, {223}<352> and finally {111} <112>. High r-values of UF340 in all directions were achieved by the development of the remarkable γ-fiber texture. In addition, the r ¯ value of the annealed UF340 was as high as 1.96, and the Δr value was only 0.2. As a result, excellent deep drawability and relatively high strength of UF340 were realized simultaneously, making it one of the ideal materials for automobile outer panels.

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Crystal plasticity simulation of in-grain microstructural evolution during large deformation of IF-steel

Cited by 26 publications

References 73 publications

A Review on the Adiabatic Shear Banding Mechanism in Metals and Alloys Considering Microstructural Characteristics, Morphology and Fracture

A Review on the Adiabatic Shear Banding Mechanism in Metals and Alloys Considering Microstructural Characteristics, Morphology and Fracture

Patterns of Grain Fragmentation During Plastic Deformation of Metals at Small to Medium Strains (Brief Review)

Microstructure and texture development during annealing in UF340

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