The effect of strain-induced martensitic transformation on mechanical properties of TRIP steel

Dan, W.J.; Li, S.H.; Zhang, W.G.; Lin, Zhongqin

doi:10.1016/j.matdes.2007.02.019

Cited by 99 publications

(33 citation statements)

References 21 publications

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“…Among the metallic materials having these specific features, steel grades showing Strain Induced Martensitic Transformation (SIMT) are widely used for energy absorption in crash or blast protection applications (Andersson, 2005;Schleyer, 2005, 2006;Bleck et al, 2005;Sato et al, 2013). Their ability to transform from the initial face-centered cubic austenite phase γ to body-centered cubic martensite α′ during plastic deformation is comparable to a dynamic composite effect and causes a remarkable hardening (Lichtenfeld et al, 2006;Oliver et al, 2007;Dan et al, 2008). Multiphase TRansformation Induced Plasticity (TRIP) steels and metastable austenitic grades are representative examples of steels exhibiting SIMT.…”

Section: Introductionmentioning

confidence: 99%

Dynamic necking in materials with strain induced martensitic transformation

Zaera

Rodríguez-Martínez

Vadillo

et al. 2014

Journal of the Mechanics and Physics of Solids

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Abstract:This work investigates the interplay between inertia and strain induced martensitic transformation (SIMT) on necking inception and energy absorption in dynamically stretched cylindrical rods. For that task a linear stability technique, derived within a quasi-1D framework and specifically accounting for SIMT, has been developed. Likewise, finite element simulations have been performed, using a specific constitutive equation to consider SIMT. Stability analysis and numerical simulations demonstrate that, at high strain rates, inertia may take the dominant role in stabilizing the material, on top of the transformation hardening effects. Furthermore, under certain loading conditions the martensitic transformation may penalize either ductility or energy absorption capacity.

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Section: Introductionmentioning

confidence: 99%

Dynamic necking in materials with strain induced martensitic transformation

Zaera

Rodríguez-Martínez

Vadillo

et al. 2014

Journal of the Mechanics and Physics of Solids

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“…Magee's mechanism accounts for the preferred martensitic plates orientation caused by the loads applied, causing a non nil resultant of the shearing micro stresses and an average macro scopic shape change. These effects enhance the work hardenability of the steel, delay the onset of necking, and thus improve formability (Lichtenfeld et al, 2006;Dan et al, 2008;Oliver et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

A constitutive model for analyzing martensite formation in austenitic steels deforming at high strain rates

Zaera

Rodríguez-Martínez

Casado³

et al. 2012

International Journal of Plasticity

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a b s t r a c tThis study presents a constitutive model for steels exhibiting SIMT, based on previous sem inal works, and the corresponding methodology to estimate their parameters. The model includes temperature effects in the phase transformation kinetics, and in the softening of each solid phase through the use of a homogenization technique. The model was validated with experimental results of dynamic tensile tests on AISI 304 sheet steel specimens, and their predictions correlate well with the experimental evidence in terms of macroscopic stress strain curves and martensite volume fraction formed at high strain rates. The work shows the value of considering temperature effects in the modeling of metastable austen itic steels submitted to impact conditions. Regarding most of the works reported in the lit erature on SIMT, modeling of the martensitic transformation at high strain rates is the distinctive feature of the present paper.

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“…During deformation, these steels can exhibit two mechanisms of strain hardening: martensitic transformation, also known as transformation-induced plasticity (TRIP), or twinning, which is referred as twinninginduced plasticity [1]. The strain-induced martensitic transformation in metastable austenitic stainless steels, such as AISI 304 and 321, is a well studied phenomenon under monotonic [2][3][4] and under cyclic loading [5][6][7][8][9][10][11][12]. The investigations revealed a considerable difference in the fatigue life between the strain-controlled and stress-controlled tests.…”

Section: Introductionmentioning

confidence: 99%

Low cycle fatigue behavior and microstructure of a high alloyed metastable austenitic cast TRIP-steel

Glage

Weidner

Richter

et al. 2009

ESOMAT 2009 - 8th European Symposium on Martensitic Transformations

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Abstract. Total strain-controlled low-cycle fatigue tests were performed at room temperature on a high alloyed metastable austenitic stainless cast steel in the range of 1x10 -3 ≤ Δ t/2 ≤ 3x10 -2 at constant strain rate of 4x10 -3 s -1 . The cyclic stress response revealed combinations of cyclic hardening, saturation and cyclic softening, depending on the applied cyclic total strain amplitude. Total strain amplitudes higher than 8x10-3 result in a pronounced secondary hardening up to fracture. In the case of metastable austenitic steels, at higher strain amplitudes the secondary hardening is an indicator for the austenitic-martensitic transformation. The deformation-induced α'-martensite content was detected using a nondestructive magnetic measuring technique (feritscope). The microstructure was investigated for different total strain amplitudes applying optical and scanning electron microscopy (SEM). It could be observed that with an increasing total strain amplitude the deformation band density increased considerably.

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The effect of strain-induced martensitic transformation on mechanical properties of TRIP steel

Cited by 99 publications

References 21 publications

Dynamic necking in materials with strain induced martensitic transformation

Dynamic necking in materials with strain induced martensitic transformation

A constitutive model for analyzing martensite formation in austenitic steels deforming at high strain rates

Low cycle fatigue behavior and microstructure of a high alloyed metastable austenitic cast TRIP-steel

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