Phase-field modeling of microstructure evolution in electron beam additive manufacturing

X Gong, K Chou - Jom, 2015 - Springer
In this study, the microstructure evolution in the powder-bed electron beam additive
manufacturing (EBAM) process is studied using phase-field modeling. In essence, EBAM …

Phase-field simulation of microstructure evolution of Ti–6Al–4V in electron beam additive manufacturing process

S Sahoo, K Chou - Additive manufacturing, 2016 - Elsevier
Electron beam additive manufacturing (EBAM) is a relatively new technology to produce
metallic parts in a layer by layer fashion by melting and fusing the metallic powders. Ti–6Al …

Investigation on evolution mechanisms of site-specific grain structures during metal additive manufacturing

PW Liu, YZ Ji, Z Wang, CL Qiu, AA Antonysamy… - Journal of Materials …, 2018 - Elsevier
A multiscale model is developed to investigate the evolution mechanisms of site-specific
grain structures during additive manufacturing (AM) of metallic alloys, using the selective …

On process temperature in powder-bed electron beam additive manufacturing: model development and validation

B Cheng, S Price, J Lydon… - Journal of …, 2014 - asmedigitalcollection.asme.org
Powder-bed beam-based metal additive manufacturing (AM) such as electron beam additive
manufacturing (EBAM) has a potential to offer innovative solutions to many challenges and …

Predicting the microstructural evolution of electron beam melting of alloy 718 with phase-field modeling

C Kumara, D Deng, F Hanning, M Raanes… - … Materials Transactions A, 2019 - Springer
Electron beam melting (EBM) is a powder bed additive manufacturing process where a
powder material is melted selectively in a layer-by-layer approach using an electron beam …

Understanding microstructure evolution during additive manufacturing of metallic alloys using phase-field modeling

Y Ji, L Chen, LQ Chen - Thermo-mechanical modeling of additive …, 2018 - Elsevier
Additive manufacturing of metallic alloys involves non-uniform temperature distributions and
rapid thermal cycles that result in microstructures featured with anisotropy, which differ …

On process temperature in powder-bed electron beam additive manufacturing: process parameter effects

S Price, B Cheng, J Lydon… - Journal of …, 2014 - asmedigitalcollection.asme.org
Build part certification has been one of the primary roadblocks for effective usage and
broader applications of metal additive manufacturing (AM) technologies including powder …

Melt pool geometry simulations for powder-based electron beam additive manufacturing

B Cheng, K Chou - 2013 - repositories.lib.utexas.edu
It is known that the melt pool geometry and dynamics strongly affect the build part properties
in metal-based additive manufacturing (AM) processes. Thus, process temperature …

Beam speed effects on Ti–6Al–4V microstructures in electron beam additive manufacturing

X Gong, J Lydon, K Cooper, K Chou - Journal of Materials Research, 2014 - cambridge.org
The effect of the beam scanning speed on part microstructures in the powder-bed electron
beam additive manufacturing (EBAM) process was investigated in this research. Four levels …

Integrated control of solidification microstructure and melt pool dimensions in electron beam wire feed additive manufacturing of Ti-6Al-4V

J Gockel, J Beuth, K Taminger - Additive Manufacturing, 2014 - Elsevier
The ability to deposit a consistent and predictable solidification microstructure can greatly
accelerate additive manufacturing (AM) process qualification. Process mapping is an …