Grain size dependence of the elastic modulus in nanostructured NiTi

Q. S. Mei, L. Zhang, K. Tsuchiya, H. Gao, T. Ohmura, Kaneaki Tsuzaki

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Nanostructured NiTi with a graded surface nanostructure was produced by surface mechanical attrition treatment (SMAT). Nanoindentation measurements revealed that the elastic modulus of SMAT samples increased significantly with decreasing distance from the SMAT surface and grain size, reaching ∼85 GPa for a grain size of ∼6 nm at the surface. This grain size dependence of the elastic modulus was found to be due to suppression of the stress-induced martensitic transformation in nanostructured NiTi.

Original languageEnglish
Pages (from-to)977-980
Number of pages4
JournalScripta Materialia
Volume63
Issue number10
DOIs
Publication statusPublished - Nov 1 2010
Externally publishedYes

Fingerprint

modulus of elasticity
Elastic moduli
grain size
comminution
Martensitic transformations
martensitic transformation
Nanoindentation
nanoindentation
surface treatment
Surface treatment
Nanostructures
retarding

All Science Journal Classification (ASJC) codes

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

Cite this

Grain size dependence of the elastic modulus in nanostructured NiTi. / Mei, Q. S.; Zhang, L.; Tsuchiya, K.; Gao, H.; Ohmura, T.; Tsuzaki, Kaneaki.

In: Scripta Materialia, Vol. 63, No. 10, 01.11.2010, p. 977-980.

Research output: Contribution to journalArticle

Mei, Q. S. ; Zhang, L. ; Tsuchiya, K. ; Gao, H. ; Ohmura, T. ; Tsuzaki, Kaneaki. / Grain size dependence of the elastic modulus in nanostructured NiTi. In: Scripta Materialia. 2010 ; Vol. 63, No. 10. pp. 977-980.
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