Promoting the columnar to equiaxed transition and grain refinement of titanium alloys during additive manufacturing

MJ Bermingham, DH StJohn, J Krynen… - Acta Materialia, 2019 - Elsevier
Preventing columnar grain formation during additive manufacturing has become a
significant challenge. Columnar grains are generally regarded as unfavourable as their …

Fabrication of metal and alloy components by additive manufacturing: examples of 3D materials science

LE Murr, E Martinez, KN Amato, SM Gaytan… - Journal of Materials …, 2012 - Elsevier
Objective This paper provides a brief review of relatively new additive manufacturing
technologies for the fabrication of unusual and complex metal and alloy products by laser …

Towards 3-D texture control in a β titanium alloy via laser powder bed fusion and its implications on mechanical properties

S Tekumalla, JE Chew, SW Tan, M Krishnan… - Additive Manufacturing, 2022 - Elsevier
Fusion-based additive manufacturing (AM) offers a new opportunity to design metallic
materials with complex, direction-dependent mechanical properties by controlling the …

Time-resolved in situ measurements during rapid alloy solidification: Experimental insight for additive manufacturing

JT McKeown, K Zweiacker, C Liu, DR Coughlin… - Jom, 2016 - Springer
Additive manufacturing (AM) of metals and alloys is becoming a pervasive technology in
both research and industrial environments, though significant challenges remain before …

Physics-informed machine learning and mechanistic modeling of additive manufacturing to reduce defects

Y Du, T Mukherjee, T DebRoy - Applied Materials Today, 2021 - Elsevier
In the past few decades, additive manufacturing has evolved for the one-step fabrication of
various complex, customized metallic components that cannot be easily and economically …

Simulation of powder bed metal additive manufacturing microstructures with coupled finite difference-Monte Carlo method

TM Rodgers, D Moser, F Abdeljawad… - Additive …, 2021 - Elsevier
Grain-scale microstructure evolution during additive manufacturing is a complex physical
process. As with traditional solidification methods of material processing (eg casting and …

Physical mechanisms in hybrid additive manufacturing: A process design framework

S Webster, H Lin, FM Carter III, K Ehmann… - Journal of Materials …, 2021 - Elsevier
This study defined hybrid additive manufacturing (AM) as “in-situ or series combination of an
additive manufacturing process and secondary energy sources in which physical …

Investigation on microsegregation of IN718 alloy during additive manufacturing via integrated phase-field and finite-element modeling

X Wang, PW Liu, Y Ji, Y Liu, MH Horstemeyer… - Journal of Materials …, 2019 - Springer
In this work, we apply a multi-scale model combining finite-element method (FEM) and
phase-field model (PFM) to simulate the evolution of solidification microstructures at different …

[HTML][HTML] Design for additive manufacturing with site-specific properties in metals and alloys

S Tammas-Williams, I Todd - Scripta Materialia, 2017 - Elsevier
Intelligent application of materials with site-specific properties will undoubtedly allow more
efficient components and use of resources. Despite such materials being ubiquitous in …

A multiscale investigation of deformation heterogeneity in additively manufactured 316L stainless steel

L Chen, W Liu, L Song - Materials Science and Engineering: A, 2021 - Elsevier
Additive manufacturing (AM) builds materials layer upon layer with the aid of an energy
source. During AM processing, the complex thermal behaviors—directional heat flux, rapid …