Vickers Indentation Induced One-Way and Two-Way Shape Memory Effect in Austenitic NiTi

The microstructural mechanisms which dictate the two‐way shape‐memory effect in indentation‐induced NiTi surfaces is currently unknown. We create surfaces capable of thermally induced switchable topography, and characterize their behavior via white‐light interferometry, X‐ray and electron back scatt...

Full description

Saved in:
Bibliographic Details
Published in:Advanced engineering materials 2014-01, Vol.16 (1), p.72-79
Main Authors: Qin, Enwei, Peter, Nicolas J., Frensemeier, Mareike, Frick, Carl P., Arzt, Eduard, Schneider, Andreas S.
Format: Article
Language:English
Subjects:
Intermetallics
Microstructure
Nickel base alloys
Nickel compounds
Nickel titanides
Shape memory alloys
Titanium compounds
Topography
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The microstructural mechanisms which dictate the two‐way shape‐memory effect in indentation‐induced NiTi surfaces is currently unknown. We create surfaces capable of thermally induced switchable topography, and characterize their behavior via white‐light interferometry, X‐ray and electron back scatter diffraction, and transmission electron microscopy. Results show that the switchable topography is heavily influenced by the initial microstructure, and may be inherently controlled by thermally stabilized martensite directly beneath the residual indent.
ISSN:1438-1656
1527-2648
DOI:10.1002/adem.201300219