Microstructural evolution and strain hardening of Fe–24Mn and Fe–30Mn alloys during tensile deformation

Liang, Xin; McDermid, Joseph R.; Bouaziz, Olivier; Wang, X.; Embury, J.D.; Zurob, Hatem S.

doi:10.1016/j.actamat.2009.05.003

Cited by 97 publications

(60 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Austenitic Mn-based TWIP steels, which combine high strength with high ductility, have strain hardening properties resulting from deformation mechanisms involving twinning or plasticity-induced transformation [1][2][3][4][5][6]. The occurrence of these plasticity-enhancing mechanisms is related to the austenite phase (c) stability.…”

Section: Introductionmentioning

confidence: 99%

α′-Martensite formation in deep-drawn Mn-based TWIP steel

et al. 2012

View full text Add to dashboard Cite

To understand the formation of a 0 -martensite in high stacking fault energy twinning-induced plasticity steel deformed in the deep drawing mode, the existing phases were investigated using magnetic and transmission electron microscopy (TEM). Small fractions of a'-martensite were quantitatively determined by magnetization saturation experiments and further observed by TEM. TEM revealed the formation of a 0 -martensite at shear band and twin intersections.

show abstract

Section: Introductionmentioning

confidence: 99%

α′-Martensite formation in deep-drawn Mn-based TWIP steel

et al. 2012

View full text Add to dashboard Cite

show abstract

“…[10] The a 0 -martensite formation can be attributed to the magnitude of e ac eq , providing the required density of shear band intersections and high stress concentrations. Liang et al [5] also indicated the importance of the strain path for the microstructural evolution. Oh et al [10] also observed the sequential formation of deformation twins and a 0 -martensite, which corresponds to the occurrence of intersections and consequent a 0 formation at larger e ac eq (in the present study due to deep drawing).…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7] With increasing e ac eq , deformation is facilitated initially by dislocation multiplication, followed by twinning or martensitic transformations, providing barriers for further dislocation slip. [1][2][3][4][5][6][7] Austenite with a relatively low stability can transform by means of c fi e fi a 0 martensitic transformations, resulting in a high work-hardening rate. Stability against c fi e-martensite transformation often implies stability against c fi (e fi) a 0 -martensite transformation.…”

Section: Discussionmentioning

confidence: 99%

“…One of the latest developments is austenitic Mn-based twinning induced plasticity (TWIP) steels, which combine high strength with high ductility. These superior mechanical properties are a result of deformation mechanisms involving twinning or plasticity-induced transformation [1][2][3][4][5][6] related to the austenite (c) stability. The deformation mechanisms in these Mn-based TWIP steels have been most intensively investigated for tensile straining, [3][4][5][6] leaving the role of large strain on the twinning or transformation-induced plastic deformation mechanism less exposed.…”

Section: Introductionmentioning

confidence: 99%

“…These superior mechanical properties are a result of deformation mechanisms involving twinning or plasticity-induced transformation [1][2][3][4][5][6] related to the austenite (c) stability. The deformation mechanisms in these Mn-based TWIP steels have been most intensively investigated for tensile straining, [3][4][5][6] leaving the role of large strain on the twinning or transformation-induced plastic deformation mechanism less exposed. [7] In the present work, the effect of both deep drawing and tensile straining on the defect and microstructure evolution in Mn-based TWIP steels was experimentally investigated using magnetic measurements, X-ray diffraction (XRD), and positron annihilation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of Deformation Mechanisms in Deep-Drawn and Tensile-Strained Austenitic Mn-Based Twinning Induced Plasticity (TWIP) Steel

Tol

Zhao

Schüt

et al. 2012

Metall Mater Trans A

View full text Add to dashboard Cite

The effect of strain on the deformation mechanisms in an austenitic Mn-based twinning induced plasticity (TWIP) steel is investigated using magnetic measurements, XRD, positron beam Doppler spectroscopy, and finite element method simulations. The experimental observations reveal the formation of a 0 -martensite at specific degrees of deformation, despite the high stacking fault energy (SFE) of the material (52 mJ/m 2 ). The observed fraction a 0 -martensite is consistent with the estimated fraction of intersected shear bands acting as preferred nucleation sites for a 0 -martensite formation as a function of accumulated equivalent strain.

show abstract

Strain Hardening Behavior of High Performance FBDP, TRIP and TWIP Steels

Cai

Ding

Tang

et al. 2011

steel research int.

View full text Add to dashboard Cite

Based on n‐value differential equation and microstructural observation, strain hardening behaviors of FBDP, TRIP, and TWIP steels during uniaxial tension were investigated. TRIP steel exhibits both superior strength and ductility than FBDP steel, and TWIP steel displays much higher total and uniform elongations in comparison to FBDP and TRIP steels. The instantaneous n values of FBDP and TRIP steels increase at small strains, reach a maximum value, smoothly decrease at higher strains, and then rapidly drop up to the specimen rupture. The strain hardening of TRIP steel persists at higher strains where that of FBDP steel begins to diminish. TWIP steel exhibits gradually increased instantaneous n values over the whole uniform plastic deformation, implying that TWIP steel shows a much larger strain hardening capability than FBDP and TRIP steels.

show abstract

Microstructural evolution and strain hardening of Fe–24Mn and Fe–30Mn alloys during tensile deformation

Cited by 97 publications

References 25 publications

α′-Martensite formation in deep-drawn Mn-based TWIP steel

α′-Martensite formation in deep-drawn Mn-based TWIP steel

Investigation of Deformation Mechanisms in Deep-Drawn and Tensile-Strained Austenitic Mn-Based Twinning Induced Plasticity (TWIP) Steel

Strain Hardening Behavior of High Performance FBDP, TRIP and TWIP Steels

Contact Info

Product

Resources

About