In-situ neutron and synchrotron methods for the investigation of plastic deformation and annealing in metals

Klaus-Dieter Liss

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Abstract. Following a crash course in neutron and synchrotron diffraction standards, applications are demonstrated on selected metallic systems, comprising the atomic order in titanium aluminide intermetallics at thermal and mechanical processing. High pressure torsion processed specimens show heterogeneous structure and order. Upon heating, their nanostructure evolves revealing regimes of recovery, recrystallization and grain growth, which can be exploited for engineering designated microstructures with enhanced physical and mechanical properties. Advanced analysis of two-dimensional diffractograms by synchrotron radiation allows to distinguish microstructure transformations as well as deformation mechanisms in thermo-mechanical processing. The methods are applicable to a wide range of materials and processes allowing to speed up materials development by orders of magnitude.

Neutron Scattering, Synchrotron Radiation, Diffraction Theory, Reciprocal Space, Titanium Aluminides, High-Pressure Torsion, Phase Transformation, High-Temperature, In-Situ, Plastic Deformation, Thermo-Mechanical Processing, Dynamic Recrystallization

Published online , 16 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Klaus-Dieter Liss, In-situ neutron and synchrotron methods for the investigation of plastic deformation and annealing in metals, Materials Research Proceedings, Vol. 32, pp 25-40, 2023


The article was published as article 3 of the book Superplasticity in Advanced Materials

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