In Situ Synchrotron X-Ray Diffraction during High-Pressure Torsion Deformation of Ni and NiTi

Autor(en)

Michael Bernhard Kerber, Florian Spieckermann, Roman Schuster, Cornelia von Baeckmann, Torben Fischer, Norbert Schell, Thomas Waitz, Erhard Schafler

Abstrakt

A down-sized high-pressure torsion device is developed to be used in an INSTRON deformation machine available at the High Energy Materials Science beamline at PETRA III. This setup allows to obtain synchrotron diffraction patterns in situ during severe plastic straining. Two different materials are studied: in pure Ni, the dislocation density and coherently scattering domain size are analyzed; in NiTi shape memory alloy, amorphization and a reverse martensitic phase transformation are investigated. The in situ experiments facilitate the characterization of the microstructural evolution of these materials depending on uniaxial loading, hydrostatic pressure, and torsional strain.

Organisation(en)

Nanomagnetismus und Magnonik, Physik Nanostrukturierter Materialien, Dynamik Kondensierter Systeme

Externe Organisation(en)

Montanuniversität Leoben, Technische Universität Wien, Deutsches Elektronen-Synchrotron DESY

Journal

Advanced Engineering Materials

Band

23

Anzahl der Seiten

10

ISSN

1438-1656

DOI

https://doi.org/10.1002/adem.202100159

Publikationsdatum

08-2021

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/in-situ-synchrotron-xray-diffraction-during-highpressure-torsion-deformation-of-ni-and-niti(64c96661-88dd-4a86-8beb-e555c783f682).html