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 language | English |
|---|---|
| Pages (from-to) | 977-980 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 63 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Nov 1 2010 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Grain size dependence of the elastic modulus in nanostructured NiTi
AU - Mei, Q. S.
AU - Zhang, L.
AU - Tsuchiya, K.
AU - Gao, H.
AU - Ohmura, T.
AU - Tsuzaki, Kaneaki
PY - 2010/11/1
Y1 - 2010/11/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=77957912605&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2010.07.018
DO - 10.1016/j.scriptamat.2010.07.018
M3 - Article
AN - SCOPUS:77957912605
VL - 63
SP - 977
EP - 980
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
IS - 10
ER -