Dynamic compression property of a low-carbon quenching and partitioning steel

Huang, Feng; Yang, Jilan; Guo, Zhenghong; Rong, Yonghua; Chen, Nailu

doi:10.1016/j.msea.2015.10.115

Cited by 11 publications

(4 citation statements)

References 22 publications

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“…Prior austenite grain boundaries can also be clearly seen in the microstructure of the undeformed sample, and most RA grains are located in these high angle boundaries (>15 °). Earlier studies of Q&P steels using transmission electron microscopy have confirmed that both TM and UM are dislocation type martensite [47]. And the TEM characterization also shows that the TM has a lath thickness about 0.2-0.3 μm while UM has a smaller thickness, around 0.1-0.2 μm [23], as TM is formed from the first quenching and has larger parent grain size.…”

Section: Microstructure Evolutionmentioning

confidence: 80%

High strain rate tensile behavior of a quenching and partitioning (Q&P) Fe-0.25C-1.5Si-3.0Mn steel

Xia

Vercruysse

Petrov

et al. 2019

Materials Science and Engineering: A

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The mechanical behavior and microstructural evolution of a quenched and partitioned (Q&P) Fe-0.25C-1.5Si-3.0Mn (wt. %) steel were investigated in a wide range of strain rates (10-4-10 3 s-1). The static tensile tests (10-4 and 10-2 s-1) were conducted using a universal testing machine, while high strain rate tests (500-1000 s-1) were carried out on a split Hopkinson tensile bar system. High speed camera imaging combined with the digital image correlation (DIC) technique were employed to study homogeneity of plastic deformation. Electron backscatter diffraction (EBSD) and scanning electron microscopy were used to characterize the microstructure evolution in the deformed zone and the fracture surface, respectively. The results indicate that the yield strength

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Section: Microstructure Evolutionmentioning

confidence: 80%

High strain rate tensile behavior of a quenching and partitioning (Q&P) Fe-0.25C-1.5Si-3.0Mn steel

Xia

Vercruysse

Petrov

et al. 2019

Materials Science and Engineering: A

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“…A few studies address the effect of strain rate on the deformation behavior of Q&P-processed steels. However, while strain-rate sensitive strength has been repeatedly observed 13,17 , no information is available on the effect of strain rate on the ductility of Q&P steels at ambient and elevated temperatures. Here, for the first time, we investigate an unusually high ductility in a Q&P-processed steel at an elevated temperature, we discuss the effect of strain rate on strength and ductility, and we explain these observations by considering in detail the contributions of different microstructural deformation mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Strain-rate sensitive ductility in a low-alloy carbon steel after quenching and partitioning treatment

Frint

Kaiser

Mehner

et al. 2019

Sci Rep

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We investigate an extraordinarily high ductility in a low alloy carbon steel at an elevated temperature after a quenching and partitioning (Q&P) treatment. The conventional (quenched and tempered) reference material does not show similar behavior. Interestingly, the Q&P treated material’s ductility is considerably reduced at increasing strain rates while strength remains almost constant. These results indicate the presence of a diffusion-controlled deformation mechanism at elevated temperatures. Our research shows that interlath retained austenite is more stable during deformation at higher temperatures, resulting in a delayed transformation to martensite and therefore to a more pronounced contribution to plastic deformation at (and in the vicinity of) the many interfaces inherently present in this multi-phase steel.

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“…Although mechanical properties of Q&P steels under tension [6], compression [7] and fatigue [8] have already been investigated, other properties like impact resistance have never been reported. On the other hand, in case of car crash accidents, the car body parts should be capable of absorbing high impact energy to ensure safety of passengers.…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior and microstructure evolution of a quenched and partitioned steel during drop weight impact and punch testing

Xia

Sabirov

Molina-Aldareguia

et al. 2018

Materials Science and Engineering: A

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In this work, a Fe-0.25C-3.0Mn-1.5Si-0.023Al-0.015Cr (wt. %) steel was subjected to the Q&P treatment, and its mechanical behavior and microstructure evolution during drop weight impact testing and quasi-static punch testing were thoroughly analyzed. It is shown that the 1 mm thick Q&P steel sheet can withstand 110 J impact energy without any (micro) cracking, which is well above the impact resistance of DP 1180 steel. The local true plastic strain can reach 53.4% in biaxial stretching showing excellent formability of the material. The microstructure

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Dynamic compression property of a low-carbon quenching and partitioning steel

Cited by 11 publications

References 22 publications

High strain rate tensile behavior of a quenching and partitioning (Q&P) Fe-0.25C-1.5Si-3.0Mn steel

High strain rate tensile behavior of a quenching and partitioning (Q&P) Fe-0.25C-1.5Si-3.0Mn steel

Strain-rate sensitive ductility in a low-alloy carbon steel after quenching and partitioning treatment

Mechanical behavior and microstructure evolution of a quenched and partitioned steel during drop weight impact and punch testing

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