Deformation twinning behavior of twinning-induced plasticity steels with different carbon concentrations - Part 1: Atomic force microscopy and electron backscatter diffraction measurements

Motomichi Koyama, Takahiro Sawaguchi, Kaneaki Tsuzaki

研究成果: Article査読

6 被引用数 (Scopus)

抄録

The deformation twinning behavior in Fe-17Mn-0.6C, Fe-17Mn-0.8C, and Fe-18Mn-1.2C (wt.%) twinning-induced plasticity (TWIP) steels was investigated by atomic force microscopy (AFM) and electron backscatter diffraction pattern (EBSD) analyses. AFM-based surface relief analysis combined with EBSD measurements was employed to determine the active twinning direction and deformation twin fraction for specific crystallographic orientations. The addition of carbon is known to increase the stacking fault energy. The <111> tensile orientation grains revealed suppression of deformation twinning with increasing carbon concentration; however, the deformation twin fraction in the <144> tensile orientation did not change as a function of the carbon concentration. These results imply that another factor in addition to stacking-fault-energy-based criteria is required to interpret the deformation twinning behavior of carbonadded TWIP steels.

本文言語English
ページ(範囲)1747-1753
ページ数7
ジャーナルIsij International
55
8
DOI
出版ステータスPublished - 2015
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

フィンガープリント

「Deformation twinning behavior of twinning-induced plasticity steels with different carbon concentrations - Part 1: Atomic force microscopy and electron backscatter diffraction measurements」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル