Combination of high-pressure torsion with incremental feeding for upsizing sample

Etsuko Shigeno, Takuya Komatsu, Kosei Sumikawa, Takahiro Masuda, Yoichi Takizawa, Manabu Yumoto, Yoshiharu Otagiri, Zenji Horita

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study introduces an advanced process solving the limitation involved in the process of high-pressure torsion (HPT). The HPT process is now well recognized as an effective process for significant grain refinement through severe plastic deformation (SPD) in many metallic materials including hard-to-deform materials. However, the applicability of the HPT process is limited to rather small diameters of disks or rings. The new proposed process, which we call incremental feeding HPT (IF-HPT), incorporates consecutive incremental feeding in the conventional HPT process to increase the SPD-processed area. The IF-HPT process is developed based on the principle of our recent SPD process called the incremental feeding high-pressure sliding (IF-HPS). The IF-HPT is applied to a Ni-based superalloy, Inconel 718, and it is demonstrated that the high-strain rate superplasticity is achieved with elongation well more than 400% at 1073K and an initial strain rate of 2 × 10-2 s-1. It is also proposed that the IF-HPT process can be used to increase the SPD-processed area by lateral feeding of the sheet sample as the IF-HPS developed earlier.

Original languageEnglish
Pages (from-to)1009-1012
Number of pages4
JournalMaterials Transactions
Volume59
Issue number6
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Torsional stress
torsion
plastic deformation
Plastic deformation
strain rate
sliding
Strain rate
superplasticity
Inconel (trademark)
Superplasticity
Grain refinement
heat resistant alloys
Superalloys
elongation
Elongation
rings

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Shigeno, E., Komatsu, T., Sumikawa, K., Masuda, T., Takizawa, Y., Yumoto, M., ... Horita, Z. (2018). Combination of high-pressure torsion with incremental feeding for upsizing sample. Materials Transactions, 59(6), 1009-1012. https://doi.org/10.2320/matertrans.M2018039

Combination of high-pressure torsion with incremental feeding for upsizing sample. / Shigeno, Etsuko; Komatsu, Takuya; Sumikawa, Kosei; Masuda, Takahiro; Takizawa, Yoichi; Yumoto, Manabu; Otagiri, Yoshiharu; Horita, Zenji.

In: Materials Transactions, Vol. 59, No. 6, 01.01.2018, p. 1009-1012.

Research output: Contribution to journalArticle

Shigeno, E, Komatsu, T, Sumikawa, K, Masuda, T, Takizawa, Y, Yumoto, M, Otagiri, Y & Horita, Z 2018, 'Combination of high-pressure torsion with incremental feeding for upsizing sample', Materials Transactions, vol. 59, no. 6, pp. 1009-1012. https://doi.org/10.2320/matertrans.M2018039
Shigeno E, Komatsu T, Sumikawa K, Masuda T, Takizawa Y, Yumoto M et al. Combination of high-pressure torsion with incremental feeding for upsizing sample. Materials Transactions. 2018 Jan 1;59(6):1009-1012. https://doi.org/10.2320/matertrans.M2018039
Shigeno, Etsuko ; Komatsu, Takuya ; Sumikawa, Kosei ; Masuda, Takahiro ; Takizawa, Yoichi ; Yumoto, Manabu ; Otagiri, Yoshiharu ; Horita, Zenji. / Combination of high-pressure torsion with incremental feeding for upsizing sample. In: Materials Transactions. 2018 ; Vol. 59, No. 6. pp. 1009-1012.
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