Mechanical behavior and martensitic transformation of an Fe–Mn–Si–Al–Nb alloy

Huang, Bin; Wang, Xiaodong; Rong, Yonghua; Wang, L.; <, Jin Lan-Feng

doi:10.1016/j.msea.2006.02.150

Cited by 88 publications

(38 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The epsilon or alpha prime martensites also act as efficient barrier to the dislocation movement and increase the rate of strain hardening. In addition, the imposed strain may be additionally accommodated through the occurrence of extended TRIPing; where the metastable austenitic matrix transforms to martensite in two stage via an intermediate state; first to the ε-martensite exhibiting an HCP lattice structure and then into the BCC α'-martensite [5,6]. It was found that the kinetics of martensitic phase transformation were enhanced if the metastable austenite would transform from ε-into α'-martensite [7].…”

Section: Introductionmentioning

confidence: 99%

The sequential twinning-transformation induced plasticity effects in a thermomechanically processed high Mn austenitic steel

Sabzi

Zarei-Hanzaki

Abedi

et al. 2018

Materials Science and Engineering: A

View full text Add to dashboard Cite

Different initial microstructures with various bimodal grain size distributions (BGSD) were produced in a high Mn austenitic steel through applying a predetermined set of thermomechanical processing cycles. The corresponding room temperature mechanical properties and the related strain hardening behaviors were assessed using tensile testing method. The results indicated that in the microstructure with high grain size bimodality, the length and amplitude of rapid hardening region was well higher than the others. This was attributed to its higher capability to α'-martensite formation. In addition, the threshold strain to initiate martensitic transformation was shifted to the lower one in the microstructure with higher bimodal grain size distribution. The latter was related to the lower arisen back stresses in the interior regions of the coarser grains. Furthermore, different transformation paths were identified as the BGSD changed. The austenite could directly transform to α'-martensite (γ α') in the microstructure with lower BGSD; in this case the α'-martensite mainly appeared at the intersections of deformation twins. In contrast, in microstructures with higher BGSD, the nucleation occurred at the intersections of ε-martensite platelets. The co-existence of these transformation paths provided an extended transformation induced plasticity effect ending to a higher elongation to fracture in the course of deformation. In order to summarize the contribution of various strain hardening mechanisms, a deformation map was also constructed. Accordingly, the enhanced ductility/strength properties were attributed to the sequential operation of extended transformation induced plasticity and twinning induced plasticity effects.

show abstract

Section: Introductionmentioning

confidence: 99%

The sequential twinning-transformation induced plasticity effects in a thermomechanically processed high Mn austenitic steel

Sabzi

Zarei-Hanzaki

Abedi

et al. 2018

Materials Science and Engineering: A

View full text Add to dashboard Cite

show abstract

“…The mean area of studies on high-manganese steels concern their high-temperature deformation resistance (Bleck et al, 2007;Cabanas et al, 2006;Dobrzański et al, 2008;Grajcar et al, 2009) and the cold-working behaviour (Dini et al, 2010;Frommeyer & Bruex, 2006;Frommeyer et al, 2003;Graessel et al, 2000;Huang et al, 2006). Much less attention has been paid on their corrosion resistance (Ghayad et al, 2006;Grajcar et al, 2010aGrajcar et al, , 2010bHamada, 2007;Kannan et al, 2008;Mujica Roncery et al, 2010;Opiela et al, 2009).…”

Section: General and Pitting Corrosionmentioning

confidence: 99%

“…The solid solution strengthening caused by Al and Si compensates smaller C content. Sometimes, the steels contain chromium (Hamada, 2007;Mujica Roncery et al, 2010) or microadditions of Nb, Ti and B (Bleck & Phiu-on, 2005;Grajcar et al, 2009;Huang et al, 2006). Mechanical properties of high-manganese steels are dependent on structural processes occurring during cold deformation, which are highly dependent on SFE (stacking fault energy) of austenite (De Cooman et al, 2011;Dumay et al, 2007;Vercammen et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistance of high-Mn austenitic steels for the automotive industry

Grajcar¹

2012

Corrosion Resistance

View full text Add to dashboard Cite

“…Recently, low stacking fault energy (SFE) austenitic high Mn steels, which is regarded as a very attractive alloying element, has attracted a great deal of attention driven by the weight reduction and energy and materials saving in this industrial cluster [1][2][3][4][5]. Particularly, the application of a new generation of high Mn steels with Al and Si additions, called twinning induced plasticity (TWIP) steel, has been confirmed to efficiently realize weight reduction and energy saving due to their good mechanical properties to facilitate the down size of part dimension and size [3,6,7].…”

Section: Introductionmentioning

confidence: 99%

Misorientation-Dependent Twinning Induced Hardening and Texture Evolution of TWIP Steel Sheet in Plastic Deformation Process

Guo

Sun

et al. 2017

Metals

View full text Add to dashboard Cite

Abstract:The quantitative contribution of twinning to hardening behavior and its effect on crystal orientation need to be explored in greater depth for design and forming of twinning-induced-plasticity (TWIP) steel products. To address this issue, the characteristics of twinning formation in the plastic deformation of Fe-30Mn-3Si-2Al TWIP steel are investigated in terms of intergranular misorientation distribution using electron back-scattering diffraction (EBSD), which reveals that most deformation twins adhere to the high-angle grain boundaries (HAGBs) of the face-center-cube (FCC) type TWIP steel. Texture measurements are conducted to show a stable volume fraction of major components including Goss, S and A orientations, while Copper shifts towards Brass orientation. A crystal plasticity finite element (CPFE) model based on virtual polycrystalline microstructure adopting representative volume element (RVE) is employed to simulate the deformation to reveal the correlation between misorientation-dependent twinning and hardening behavior of TWIP steel. The results demonstrate that the proportion of twinning hardening to overall hardening is larger than slip hardening. The stability of texture evolution is simulated to predict the anisotropy of TWIP steel. This research substantiates the twinning induced hardening and texture evolution in deformation of TWIP steel and thus is essential for accurate prediction of the mechanical behaviors.

show abstract

Mechanical behavior and martensitic transformation of an Fe–Mn–Si–Al–Nb alloy

Cited by 88 publications

References 7 publications

The sequential twinning-transformation induced plasticity effects in a thermomechanically processed high Mn austenitic steel

The sequential twinning-transformation induced plasticity effects in a thermomechanically processed high Mn austenitic steel

Corrosion resistance of high-Mn austenitic steels for the automotive industry

Misorientation-Dependent Twinning Induced Hardening and Texture Evolution of TWIP Steel Sheet in Plastic Deformation Process

Contact Info

Product

Resources

About