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Vickers Indentation Induced One‐ W ay and Two‐ W ay Shape Memory Effect in Austenitic Ni T i
Author(s) -
Qin Enwei,
Peter Nicolas J.,
Frensemeier Mareike,
Frick Carl P.,
Arzt Eduard,
Schneider Andreas S.
Publication year - 2014
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300219
Subject(s) - materials science , indentation , austenite , vickers hardness test , composite material , metallurgy , microstructure
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.