Compressive response of nickel-rich NiTiHf high-temperature shape memory single crystals along the [1 1 1] orientation

The shape memory properties of Ni-rich NiTiHf single crystals along the [1 1 1] orientation were investigated by thermal cycling under constant stress and stress cycling at constant temperature in compression. The single crystals demonstrate stable shape memory behavior under ultrahigh stress levels...

Full description

Saved in:
Bibliographic Details
Published in:Scripta materialia 2011-10, Vol.65 (7), p.577-580
Main Authors: Karaca, H.E., Saghaian, S.M., Basaran, B., Bigelow, G.S., Noebe, R.D., Chumlyakov, Y.I.
Format: Article
Language:English
Subjects:
Compressing
Martensitic phase transformation
Martensitic transformations
Nickel
NiTiHf
Orientation
Shape memory
Shape memory alloys
Single crystals
Stresses
Transformation strain
Transformations
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The shape memory properties of Ni-rich NiTiHf single crystals along the [1 1 1] orientation were investigated by thermal cycling under constant stress and stress cycling at constant temperature in compression. The single crystals demonstrate stable shape memory behavior under ultrahigh stress levels (1000 MPa) with about 3% transformation strain, a maximum work output of 30 J cm −3 and nearly perfect pseudoelasticity at high temperatures (180–200 °C).
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2011.06.027