Phase transformations of severely plastically deformed Ti-Ni-Pd high-temperature shape memory alloys

Autor(en)

Semir Tulic, Michael Kerber, Mitsuhiro Matsuda, Thomas Waitz

Abstrakt

Severe plastic deformation of a Ti50Ni25Pd25 high-temperature shape memory alloy yields a nanoscale mixture of an amorphous phase and retained lamellae of the parent B19 martensite. The thermal stability of the deformed martensite is significantly enhanced. Upon heating, B2 austenite occurs within the martensite and by crystallization of the amorphous phase, concomitant with recovery and the formation of an ultrafine grained structure. In the small grains, the B2 austenite to B19 martensitic transformation is shifted to lower temperatures and incomplete.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Kumamoto University

Journal

Functional Materials Letters

Band

10

Anzahl der Seiten

8

ISSN

1793-6047

DOI

https://doi.org/10.1142/S1793604717400124

Publikationsdatum

02-2017

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Materialwissenschaften

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/79041c3d-8342-403e-a188-04eebe2425fe