In-situ study of tensile deformation behaviour of medium Mn TWIP/TRIP steel using synchrotron radiation

Kalsar, Rajib; Sanamar, Soheil; Schell, Norbert; Brokmeier, Heinz Günter; Saha, Rajib; Ghosh, Pradyut; Suwas, Satyam

doi:10.1016/j.msea.2022.144013

Cited by 11 publications

(5 citation statements)

References 65 publications

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“…The amplified signals from the detector plane are then analyzed to obtain information regarding phase fractions, crystal structure, morphology, grain size, orientation, etc. [14,43,48,69,74,[83][84][85][86][87] Corresponding 1D diffraction patterns are then obtained from the 2D patterns using the FIT2D software package, [79,83,84,87] as shown in Figure 6. Quantitative analysis from these 1D patterns is done by subjecting them to the Rietveld analysis or by direct comparison method.…”

Section: In Situ Quantitative Measurement Of Austenite With Xrdmentioning

confidence: 99%

“…However, synchrotron-based high-energy XRD can be useful in assessing the information for up to 1 mm-thick samples due to the high penetration depths of high-energy XRD. [14,[51][52][53][54][55][81][82][83][84][85][86][87] Quantitative assessment from thicker specimens (thickness > 1 mm) is not possible using X-Ray radiations.…”

Section: Limitations Of Xrdmentioning

confidence: 99%

“…3) As compared to XRD, neutron diffraction requires a larger crystal size because neutron flux emitted by a neutron source is weaker than photon flux from X-Ray tube. [22,35,[47][48][49]51,68,[81][82][83][84][85][86][87] 4) Data collection time is greater for neutron diffraction (in hours or days) as compared to XRD (in hours or less). 5) There might be the possibility of emission of radiations from the neutron test sample which requires the sample to be left for a long period, leading to a large duration required for carrying out the analysis.…”

Section: Limitations Of Neutron Diffractionmentioning

confidence: 99%

“…[70] Both in situ and ex situ techniques are possible. Data collection time is more [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][81][82][83][84][85][86][87][88][89][90][91][92][93] High resolving power Inability to distinguish different microstructures of same crystal structure Requires larger sample size than that of XRD.…”

Section: Villari Effectmentioning

confidence: 99%

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A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

Tiwari,

Varshney

2023

steel research int.

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Deformation‐induced austenite to martensite transformation is an important phenomenon that controls the flow behaviour of Transformation Induced Plasticity (TRIP) and TRIP‐assisted steels. Transformation kinetics and triggering strain are important parameters that need to be known during the transformation. Both these parameters can be correctly determined by an accurate quantitative assessment of the austenite during deformation. Various techniques have been employed for the quantitative assessment of the austenite by previous investigators. In this paper, both the in‐situ and ex‐situ measurement techniques used for quantitative assessment of austenite during/after tensile deformation of the TRIP and TRIP‐assisted steels are reviewed. A comparison of various techniques such as X‐ray diffraction, neutron diffraction, Mossbauer spectroscopy, and DC/AC magnetic permeability is presented. Due to the limited penetration power of the radiations, difficult access, and difficulty in setting up the measurement facility for the in‐situ measurements, X‐ray diffraction, neutron diffraction, and Mossbauer spectroscopy techniques do not yield accurate quantitative results and are time consuming. It is envisaged that an accurate quantitative assessment of austenite from the bulk of the TRIP and TRIP‐assisted steel specimens is possible with magnetic permeability measurement techniques. Real‐time quantitative assessments can be made by measuring changes in the magnetic permeability due to changes in the ferromagnetic content during deformation. Extensive calibration is required for the accurate measurement of the phases with the magnetic permeability measurements during the deformation of the steel.This article is protected by copyright. All rights reserved.

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Section: In Situ Quantitative Measurement Of Austenite With Xrdmentioning

confidence: 99%

Section: Limitations Of Xrdmentioning

confidence: 99%

Section: Limitations Of Neutron Diffractionmentioning

confidence: 99%

Section: Villari Effectmentioning

confidence: 99%

See 2 more Smart Citations

A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

Tiwari,

Varshney

2023

steel research int.

View full text Add to dashboard Cite

show abstract

“…Many medium-Mn steels demonstrate both the twinning induced plasticity (TWIP) effect and the transformation induced plasticity (TRIP) effect, influenced by stacking fault energy [17,18], with strong grain orientation and morphology dependency [19,20]. In our previous work [6], a CPFE modeling framework based on the Taylor model for medium-Mn is developed, which fully incorporates dislocation slip, TWIP, and TRIP but only considers the volume fraction of the individual phases but not the fully resolved microstructures.…”

Section: Introductionmentioning

confidence: 99%

Crystal Plasticity Finite Element Modeling of the Influences of Ultrafine-Grained Austenite on the Mechanical Response of a Medium-Mn Steel

Shen,

Liu,

Zhang

2024

Crystals

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Medium manganese (medium-Mn) steel, one of the third-generation advanced high-strength steels (AHSS), delivers impressive mechanical properties such as high yield strength, ultimate tensile strength, and uniform elongation. One notable feature of medium-Mn steels is the presence of ultrafine-grained (UFG) austenite, achieved through phase transformation from the parent martensite phase during intercritical annealing. While, in general, UFG is considered a strengthening mechanism, the impact of UFG austenites in medium-Mn steel has not been fully studied. In this manuscript, we advance our previous work on crystal plasticity simulation based on the Taylor model to consider fully resolved high-fidelity microstructures and systematically study the influence of the UFG austenites. The original microstructure with UFG is reconstructed from a set of serial electron backscatter diffraction (EBSD) scans, where the exact grain morphology, orientation, and phase composition are preserved. This microstructure was further analyzed to identify the UFG austenites and recover them to their parent martensite before the intercritical annealing. These two high-fidelity microstructures are used for a comparative study using dislocation density-based crystal plasticity finite modeling to understand the impact of UFG austenites on both the local and overall mechanical responses.

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Quasi‐Static and Dynamic Deformation Behavior of Medium Manganese Automotive Steel under Interrupted Tension

Feng,

Jia,

Ying

et al. 2024

steel research int.

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This work investigates the mechanical properties of medium manganese automotive steel across a strain rate range from 2 × 10−4 to 200 s−1. The results indicate that the tensile strength is the lowest at a low strain rate (0.0002 s−1), primarily due to the high mechanical stability of austenite, which results in low work‐hardening ability during deformation. As the strain rate increases, the softening effect because of temperature rise, and the dislocation density increase. Consequently, the deformation mechanism is transitioned from the transformation induced plasticity (TRIP) effect (ε < 2 × 10−2 s−1) to the co‐occurrence TRIP and twinning induced plasticity effect (ε ≥ 2 × 10−2 s−1). Furthermore, in the initial stages of dynamic deformation (ε < 0.1), the same work‐hardening phenomenon occurs under the influence of geometrically necessary dislocations as in quasi‐static deformation. However, in the later stages of dynamic deformation (ε > 0.25), the weakening of the copper texture density occurs due to an increase in stacking fault energy within the austenite.

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In-situ study of tensile deformation behaviour of medium Mn TWIP/TRIP steel using synchrotron radiation

Cited by 11 publications

References 65 publications

A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

Crystal Plasticity Finite Element Modeling of the Influences of Ultrafine-Grained Austenite on the Mechanical Response of a Medium-Mn Steel

Quasi‐Static and Dynamic Deformation Behavior of Medium Manganese Automotive Steel under Interrupted Tension

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