Effects of build orientation and heat treatment on the evolution of microstructure and mechanical properties of alloy Mar-M-509 fabricated via laser powder bed fusion

NC Ferreri, S Ghorbanpour, S Bhowmik… - International Journal of …, 2019 - Elsevier
This paper describes the main results from an experimental investigation into the
consequences of various microstructural features, created by laser powder bed fusion …

Characterization of metals in four dimensions

AJ Shahani, X Xiao, EM Lauridsen… - Materials Research …, 2020 - Taylor & Francis
The ability to watch the three-dimensional (3D) evolution of structural materials is a
breakthrough in non-destructive characterization. In particular, X-ray tomographic imaging …

[HTML][HTML] Microcomputed X-ray tomographic imaging and image processing for microstructural characterization of explosives

JD Yeager, LA Kuettner, AL Duque, LG Hill… - Materials, 2020 - mdpi.com
Microstructural characterization of composite high explosives (HEs) has become
increasingly important over the last several decades in association with the development of …

[HTML][HTML] The evolution of intergranular networks during grain growth and its effect on percolation behavior

AJ Shahani, K Walter, J Zhang, W Ludwig, DJ Jensen… - Acta Materialia, 2024 - Elsevier
Triple junctions (TJs) are line defects in three-dimensional (3D) polycrystalline materials
where three grains meet. Transport along the TJs depends on the connectivity between …

Peritectic solidification patterns in the Zn–Ag system captured in three-and four-dimensions

GR Lindemann, SK Aramanda, AJ Shahani - Acta Materialia, 2024 - Elsevier
Microstructure selection in two-phase peritectic alloys has been a long-standing topic of
fundamental importance. The bicontinuous microstructures arising from peritectic …

[HTML][HTML] Pseudo-4D view of the growth and form of locked eutectic colonies

P Chao, GR Lindemann, AH Hunter, AJ Shahani - Acta Materialia, 2022 - Elsevier
We investigate solidification of an Al-Cu alloy as a model system to understand the
emergence of patterns (such as lamellar, rod and maze-like) within eutectic colonies. To …

Synchrotron CT imaging of lattice structures with engineered defects

BM Patterson, L Kuettner, T Shear… - Journal of Materials …, 2020 - Springer
Understanding mechanical failure, crack propagation, and compressive behavior at the
micrometer scale is essential for tailoring material properties for structural performance in …

[HTML][HTML] Seeing the whole picture: Methods for getting the most from micro X-ray computed tomography of TRISO nuclear fuel particles

WC Chuirazzi, JJ Kane, NL Cordes… - Tomography of Materials …, 2023 - Elsevier
Tristructural isotropic (TRISO) coated fuel particles are a nuclear fuel form under extensive
study for use in advanced nuclear reactor concepts. TRISO fuels are subjected to high …

In situ testing using synchrotron radiation computed tomography in materials research

X Ni, NK Fritz, BL Wardle - MRS Advances, 2019 - cambridge.org
High resolution (< 1 µm) computed tomography is an attractive tool in materials research
due to its ability to non-destructively visualize the three-dimensional internal microstructures …

Integrated three-dimensional characterization of reactive phase formation and coarsening during isothermal annealing of metastable Zn–3Mg–4Al eutectic

Y Wang, P Chao, S Moniri, J Gao, T Volkenandt… - Materials …, 2020 - Elsevier
Microstructural instabilities associated with a metastable lamellar eutectic when exposed to
an elevated temperature were analyzed in a Zn− 3Mg− 4Al alloy as a model system. X-ray …