Occurrence of {332}⟨113̅⟩ deformation twinning in a single crystal of an Fe–3mass%Al alloy

ABSTRACT

An impact test was conducted on a single crystal of an Fe–3mass%Al alloy with a bcc structure. Microstructural changes in the sheared regions resulting from the impact test were examined. Deformation twinning was observed, with the twinning plane $K_1=\{332\}$ and the twinning shear direction ${\eta }_1=⟨11\overline{3}⟩$. The conjugate twinning direction ${\eta }_2$ of this mode was discussed. Considering the shear direction required to induce deformation twinning, it can be concluded that ${\eta }_2=⟨110⟩$ is appropriate for the twinning mode in the Fe–3mass%Al.

KEYWORDS:

• Twinning
• mechanical behaviour
• microstructural characterisation
• Fe–Al alloy
• conjugate twinning direction
• impact deformation

Acknowledgment

This work was supported by JSPS KAKENHI Grant Number 22K04668.

Author contributions

S.O. contributed to the study conception and prepared the original draft. T.A. and N.M. carried out the experiments and contributed to the interpretation of the results. All authors read and approved the final manuscript.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability

The datasets used and/or analysed during the current study available from the corresponding author on reasonable request.

Additional information

Funding

This work was supported by Japan Society for the Promotion of Science: [Grant Number 22K04668].