Microstructure and texture evolution in 21Mn–2.5Si–1.6Al–Ti steel subjected to dynamic impact loading

Eskandari, M.; Zarei-Hazanki, A.; Mohtadi-Bonab, M.A.; Odeshi, A.G.; Szpunar, Jerzy A.

doi:10.1016/j.msea.2014.11.017

Cited by 19 publications

(6 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sites where voids form are described as areas of strain incompatibility between austenite and α 0 -martensite [19] or within the α 0 -martensite phase. [21] In agreement with the latter study, Eskandari et al [25] reported on void formation and coalescence at the intersection of α 0 -martensite plates in a Fe-21Mn-2.5Si-1.6Al-0.11C (wt%) TRIP-TWIP steel. Given these contrasting conclusions, a clearer understanding of void formation and crack propagation in a TRIP-TWIP steel during bending is currently unavailable.…”

Section: Introductionsupporting

confidence: 78%

Void Formation and Crack Propagation in a Cr–Mn–N Metastable Austenitic Stainless Steel During Bending

Kamali

Xie

et al. 2022

Adv Eng Mater

View full text Add to dashboard Cite

Microstructure evolution via deformation-induced martensitic transformation, void formation, and crack propagation is investigated in a metastable austenitic Cr-Mn-N stainless steel for up to 90°bending using a combination of electron backscattering diffraction and parent grain reconstruction. Stress-strain heterogeneity and stress triaxiality studied using finite-element analysis reveal that the inner and outer radii are in approximately uniaxial compressive and tensile stress states, respectively, with the outer radius showing higher values for von Mises and principal stresses and equivalent strain. Voids are observed at both austenite/α 0 -martensite and α 0 /α 0 -martensite interfaces. Parent grain reconstruction applied to the 90°bending sample reveal that the cracks at α 0 /α 0martensite interfaces tend to propagate predominantly along intergranular parent austenite grain boundaries. It is also found that both intragranular and intergranular cracks in parent austenite tend to propagate between α 0 -martensite child-child grains comprising the same crystallographic packets. This is the first study of its kind to comprehensively show this phenomenon. A representative example of intergranular crack propagation within a 110 h i‖normal direction (ND)-oriented parent austenite grain is also demonstrated.

show abstract

Section: Introductionsupporting

confidence: 78%

Void Formation and Crack Propagation in a Cr–Mn–N Metastable Austenitic Stainless Steel During Bending

Kamali

Xie

et al. 2022

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

“…In these areas, local temperature rise and large amount of stored deformation energy lead to the occurrence of DRX [46,47] inside the bands in a way that the adjacent grains remain in their original state (Fig. 9b).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Hot deformation characterization of duplex low-density steel through 3D processing map development

Mohamadizadeh

Zarei-Hanzaki

Abedi

et al. 2015

Materials Characterization

View full text Add to dashboard Cite

“…Hence, it is important to investigate the deformation and strengthening mechanisms of such steels under different loading conditions. It is generally accepted that the mechanical behaviours and the corresponding deformation mechanisms of steels are greatly dependent on the loading rates [4]. The strain rate sensitivity of a steel is an important characteristic during shock-loading.…”

Section: Introductionmentioning

confidence: 99%

High-strain-rate deformation behaviour of new high-Mn austenitic steel during impact shock-loading

Eskandari

Mohtadi-Bonab

Yeganeh

et al. 2019

Materials Science and Technology

Self Cite

View full text Add to dashboard Cite

The influence of impact shock-loading was investigated on the mechanical behaviour, microstructure evolution, and texture of a new high-Mn steel. The mechanical behaviour of the shock-loaded specimen was compared with quasi-static compression condition. A Hopkinson pressure bar setup was used to perform the high-strain-rate deformation. Continuous yielding was observed under both low and high-strain-rate deformation. The yield stress also illustrated a positive strain-rate sensitivity with increasing strain-rate. An obvious increase in the flow stress of the steel was detected at higher strain-rate. A strain hardening followed by a strain softening was detected in stress–strain curve after shock-loading. Electron backscatter diffraction also displayed the activation of strain-induced ϵ-martensite and ά-martensite while deformation twinning was absent at high-strain-rate.

show abstract

Microstructure and texture evolution in 21Mn–2.5Si–1.6Al–Ti steel subjected to dynamic impact loading

Cited by 19 publications

References 35 publications

Void Formation and Crack Propagation in a Cr–Mn–N Metastable Austenitic Stainless Steel During Bending

Void Formation and Crack Propagation in a Cr–Mn–N Metastable Austenitic Stainless Steel During Bending

Hot deformation characterization of duplex low-density steel through 3D processing map development

High-strain-rate deformation behaviour of new high-Mn austenitic steel during impact shock-loading

Contact Info

Product

Resources

About