Dynamic mechanical properties of the Fe-30Mn-3Si-4Al TWIP steel after different heat treatments

Zhi ping Xiong; Xue ping Ren; Wei ping Bao; Shu xia Li; Hai tao Qu

doi:10.1016/j.msea.2011.09.106

Dynamic mechanical properties of the Fe-30Mn-3Si-4Al TWIP steel after different heat treatments

Zhi ping Xiong, Xue ping Ren^*, Wei ping Bao, Shu xia Li, Hai tao Qu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

The dynamic mechanical properties of Fe-30Mn-3Si-4Al TWIP steel were studied using a split-Hopkinson pressure bar at room temperature with strain rates between 700 and 5000s^-1. It was found that the effect of heat treatments on the dynamic mechanical properties is limited. With increasing the strain rate from 700 to 2500s^-1, the strain hardening dominates the process. When the strain rate is further increased to 5000s^-1, the effect of strain softening is active. The density of deformation twins increases with the strain rate, and then decreases a little with further increasing the strain rate. The deformation behavior is attributed to the opposite effects of pulse duration and impact pressure.

Original language	English
Pages (from-to)	426-431
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	530
Issue number	1
DOIs	https://doi.org/10.1016/j.msea.2011.09.106
Publication status	Published - 15 Dec 2011
Externally published	Yes

Keywords

Dynamic compression
Heat treatment
Strain rate
TWIP steel

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10.1016/j.msea.2011.09.106

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title = "Dynamic mechanical properties of the Fe-30Mn-3Si-4Al TWIP steel after different heat treatments",

abstract = "The dynamic mechanical properties of Fe-30Mn-3Si-4Al TWIP steel were studied using a split-Hopkinson pressure bar at room temperature with strain rates between 700 and 5000s-1. It was found that the effect of heat treatments on the dynamic mechanical properties is limited. With increasing the strain rate from 700 to 2500s-1, the strain hardening dominates the process. When the strain rate is further increased to 5000s-1, the effect of strain softening is active. The density of deformation twins increases with the strain rate, and then decreases a little with further increasing the strain rate. The deformation behavior is attributed to the opposite effects of pulse duration and impact pressure.",

keywords = "Dynamic compression, Heat treatment, Strain rate, TWIP steel",

author = "Xiong, {Zhi ping} and Ren, {Xue ping} and Bao, {Wei ping} and Li, {Shu xia} and Qu, {Hai tao}",

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AU - Xiong, Zhi ping

AU - Ren, Xue ping

AU - Bao, Wei ping

AU - Li, Shu xia

AU - Qu, Hai tao

PY - 2011/12/15

Y1 - 2011/12/15

N2 - The dynamic mechanical properties of Fe-30Mn-3Si-4Al TWIP steel were studied using a split-Hopkinson pressure bar at room temperature with strain rates between 700 and 5000s-1. It was found that the effect of heat treatments on the dynamic mechanical properties is limited. With increasing the strain rate from 700 to 2500s-1, the strain hardening dominates the process. When the strain rate is further increased to 5000s-1, the effect of strain softening is active. The density of deformation twins increases with the strain rate, and then decreases a little with further increasing the strain rate. The deformation behavior is attributed to the opposite effects of pulse duration and impact pressure.

AB - The dynamic mechanical properties of Fe-30Mn-3Si-4Al TWIP steel were studied using a split-Hopkinson pressure bar at room temperature with strain rates between 700 and 5000s-1. It was found that the effect of heat treatments on the dynamic mechanical properties is limited. With increasing the strain rate from 700 to 2500s-1, the strain hardening dominates the process. When the strain rate is further increased to 5000s-1, the effect of strain softening is active. The density of deformation twins increases with the strain rate, and then decreases a little with further increasing the strain rate. The deformation behavior is attributed to the opposite effects of pulse duration and impact pressure.

KW - Dynamic compression

KW - Heat treatment

KW - Strain rate

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JO - Materials Science and Engineering: A

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Dynamic mechanical properties of the Fe-30Mn-3Si-4Al TWIP steel after different heat treatments

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Keywords

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