Designing Fe–Mn–Si alloys with improved low-cycle fatigue lives

Sawaguchi, Takahiro; Nikulin, Ilya; Ogawa, Kazuyuki; Sekido, Kaoru; Takamori, Susumu; Maruyama, Toru; Chiba, Yuya; Kushibe, Atsumichi; Inoue, Yoshito; Tsuzaki, Kaneaki

doi:10.1016/j.scriptamat.2014.11.024

Cited by 138 publications

(64 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A possible reason why dislocation/dislocation interaction-induced vacancy/microvoid formation dominated the ductile fracture of the Fe-33Mn-4Si and Fe-33Mn-6Si alloys is the reduction in stacking fault energy, which has been reported to decrease by the addition of Si. 11,33) The reduction in stacking fault energy suppresses cross slips, thereby decreasing the frequency of recovery. The suppression of recovery increases the increasing rate of dislocation density and promotes vacancy formation, a process that can grow until the emergence of microvoids.…”

Section: Fractographic Characteristicsmentioning

confidence: 99%

Effects of Si on Tensile Properties Associated with Deformation-Induced ε-Martensitic Transformation in High Mn Austenitic Alloys

2015

Self Cite

View full text Add to dashboard Cite

We investigated the effect of Si on the tensile properties of Fe-33Mn, Fe-33Mn-4Si, and Fe-33Mn-6Si austenitic alloys (mass%) at 273, 294, 323, and 423 K. The Si addition promoted the deformation-induced ¾-martensitic transformation, thereby enhancing the work-hardening capacity. In terms of Considère's criterion, the enhanced work-hardening capacity can improve uniform elongation. However, the Si addition simultaneously promoted brittle cracking associated with ¾-martensite, tending toward decreasing elongation. As a result of the ambivalent roles of Si related to ¾-martensite, the elongationstrength balance was improved by the addition of 4%Si, but was deteriorated when the Si content increased to 6%. As an additional effect, the Si addition changed the microvoid-formation behavior, resulting in decreasing local elongations.

show abstract

Section: Fractographic Characteristicsmentioning

confidence: 99%

Effects of Si on Tensile Properties Associated with Deformation-Induced ε-Martensitic Transformation in High Mn Austenitic Alloys

2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Their advantage is the ability to greatly reduce the possibility of damage due to corrosion, fire, vandalism, mechanical damage and aging. Article [13] proposes to replace the fibers of reinforced polymers with the strips of alloy based on iron with SME, which can be applied for strengthening reinforced concrete beams.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of an iron-based alloy with a high degree of shape recovery

Mohammеd

Akimov

Kostyk

2017

EEJET

View full text Add to dashboard Cite

“…[24][25][26] For example, ε-martensite enhances the work hardening capacity and thus improves the tensile ductility as long as the plastic instability condition is satisfied. 20,22) Moreover, even though twinning-induced plasticity steels show no ε-martensitic transformation at ambient temperature, cryogenic deformation can provide deformation-induced ε-martensitic transformation.…”

Section: Fracture Phenomena Related To ε-Martensitementioning

confidence: 99%

Combined Multi-scale Analyses on Strain/Damage/Microstructure in Steel: Example of Damage Evolution Associated with <i>ε</i>-martensitic Transformation

et al. 2016

Self Cite

View full text Add to dashboard Cite

We studied damage evolution behavior associated with ε-martensite in a Fe-28Mn alloy. Visible factors of damage evolution associated with ε-martensite are considered to be strain distribution, microstructure, micro-void and crack. Combinatorial use of replica digital image correlation, electron backscattering diffraction, and electron channeling contrast imaging enables to clarify the distributions of strain, microstructure and damage. Through quantitative damage analysis, damage evolution behavior was classified into three regimes: (i) incubation regime, (ii) nucleation regime, and (iii) growth regime. In the incubation regime, an interaction of ε/ε-martensite plates and impingement of ε-martensite plates on grain boundaries caused plastic strain localization owing to plastic accommodation. In the nucleation regime, accumulation of the plastic strain on the boundaries caused microvoid formation. The damage propagated along with the boundaries through coalescence with other micro-voids, but the propagation was arrested by crack blunting at non-transformed austenite. In the growth regime, the arrested damage grew again when a further plastic strain was provided sufficiently to initiate ε-martensite near the damage.KEY WORDS: high Mn austenitic steel; ε-martensite; damage; replica method; digital image correlation; electron back scatter diffraction; electron channeling contrast imaging.

show abstract

Designing Fe–Mn–Si alloys with improved low-cycle fatigue lives

Cited by 138 publications

References 20 publications

Effects of Si on Tensile Properties Associated with Deformation-Induced ε-Martensitic Transformation in High Mn Austenitic Alloys

Effects of Si on Tensile Properties Associated with Deformation-Induced ε-Martensitic Transformation in High Mn Austenitic Alloys

Development of an iron-based alloy with a high degree of shape recovery

Combined Multi-scale Analyses on Strain/Damage/Microstructure in Steel: Example of Damage Evolution Associated with <i>ε</i>-martensitic Transformation

Contact Info

Product

Resources

About

Designing Fe–Mn–Si alloys with improved low-cycle fatigue lives

Cited by 138 publications

References 20 publications

Effects of Si on Tensile Properties Associated with Deformation-Induced &epsilon;-Martensitic Transformation in High Mn Austenitic Alloys

Effects of Si on Tensile Properties Associated with Deformation-Induced &epsilon;-Martensitic Transformation in High Mn Austenitic Alloys

Development of an iron-based alloy with a high degree of shape recovery

Combined Multi-scale Analyses on Strain/Damage/Microstructure in Steel: Example of Damage Evolution Associated with <i>ε</i>-martensitic Transformation

Contact Info

Product

Resources

About

Effects of Si on Tensile Properties Associated with Deformation-Induced ε-Martensitic Transformation in High Mn Austenitic Alloys

Effects of Si on Tensile Properties Associated with Deformation-Induced ε-Martensitic Transformation in High Mn Austenitic Alloys