3D mapping of crystallographic phase distribution using energy-selective neutron tomography

Robin Woracek; Dayakar Penumadu; Nikolay Kardjilov; Andre Hilger; Mirko Boin; John Banhart; Ingo Manke

doi:10.1002/adma.201400192

3D mapping of crystallographic phase distribution using energy-selective neutron tomography

Adv Mater. 2014 Jun 25;26(24):4069-73. doi: 10.1002/adma.201400192. Epub 2014 Apr 2.

Authors

Robin Woracek¹, Dayakar Penumadu, Nikolay Kardjilov, Andre Hilger, Mirko Boin, John Banhart, Ingo Manke

Affiliation

¹ College of Engineering, The University of Tennessee, 325 John D Tickle Building, Knoxville, TN, 37996, USA.

PMID: 24692200
DOI: 10.1002/adma.201400192

Abstract

Nondestructive 3D mapping of crystallographic phases is introduced providing distribution of phase fractions within the bulk (centimeter range) of samples with micrometer-scale resolution. The novel neutron tomography based technique overcomes critical limitations of existing techniques and offers a wide range of potential applications. It is demonstrated for steel samples exhibiting phase transformation after being subjected to tensile and torsional deformation.

Keywords: bragg edge tomography; crystallographic characterization; non-destructive testing; phase mapping; phase tomography; phase transformation.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.