Shear strength measurement of Gum Metal during high-pressure torsion

Tadahiko Furuta, Shigeru Kuramoto, Naoyuki Nagasako, Zenji Horita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In the present study, in situ measurements of applied torque and compressive load were conducted during high-pressure torsion (HPT) on Ti-23%Nb-0.7%Ta-2.0%Zr-1.2%O (in at %), Gum Metal, by using four active strain-gage method. The shear stress was then calculated from the measured torque. The in situ measurements revealed that the maximum shear stress reaches ∼2 GPa during HPT. This value is comparable to the ideal shear strength of Gum Metal, which was reported as ∼1.8 GPa from experiments using single crystals. The deformation mechanism strongly depends on body-centered cubic (bcc) phase stability at an early stage of HPT straining, where the shear stress is well below the ideal shear strength. On the other hand, the deformation mechanism may be insensitive to the bcc phase stability at a later stage of HPT straining, where plastic deformation occurs at a strength close to the ideal shear strength.

Original languageEnglish
Title of host publicationTHERMEC 2011
Pages1769-1774
Number of pages6
DOIs
Publication statusPublished - Jan 30 2012
Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, Canada
Duration: Aug 1 2011Aug 5 2011

Publication series

NameMaterials Science Forum
Volume706-709
ISSN (Print)0255-5476

Other

Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
CountryCanada
CityQuebec City, QC
Period8/1/118/5/11

Fingerprint

shear strength
Shear strength
Torsional stress
torsion
Metals
shear stress
Shear stress
Phase stability
in situ measurement
metals
torque
Torque
strain gages
Strain gages
plastic deformation
Loads (forces)
Plastic deformation
Single crystals
single crystals
Experiments

All Science Journal Classification (ASJC) codes

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

Cite this

Furuta, T., Kuramoto, S., Nagasako, N., & Horita, Z. (2012). Shear strength measurement of Gum Metal during high-pressure torsion. In THERMEC 2011 (pp. 1769-1774). (Materials Science Forum; Vol. 706-709). https://doi.org/10.4028/www.scientific.net/MSF.706-709.1769

Shear strength measurement of Gum Metal during high-pressure torsion. / Furuta, Tadahiko; Kuramoto, Shigeru; Nagasako, Naoyuki; Horita, Zenji.

THERMEC 2011. 2012. p. 1769-1774 (Materials Science Forum; Vol. 706-709).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Furuta, T, Kuramoto, S, Nagasako, N & Horita, Z 2012, Shear strength measurement of Gum Metal during high-pressure torsion. in THERMEC 2011. Materials Science Forum, vol. 706-709, pp. 1769-1774, 7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011, Quebec City, QC, Canada, 8/1/11. https://doi.org/10.4028/www.scientific.net/MSF.706-709.1769
Furuta T, Kuramoto S, Nagasako N, Horita Z. Shear strength measurement of Gum Metal during high-pressure torsion. In THERMEC 2011. 2012. p. 1769-1774. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.706-709.1769
Furuta, Tadahiko ; Kuramoto, Shigeru ; Nagasako, Naoyuki ; Horita, Zenji. / Shear strength measurement of Gum Metal during high-pressure torsion. THERMEC 2011. 2012. pp. 1769-1774 (Materials Science Forum).
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