Additive manufacturing of metals: Microstructure evolution and multistage control

Z Liu, D Zhao, P Wang, M Yan, C Yang, Z Chen… - Journal of Materials …, 2022 - Elsevier
As a revolutionary industrial technology, additive manufacturing creates objects by adding
materials layer by layer and hence can fabricate customized components with an …

[HTML][HTML] In-situ synchrotron X-ray analysis of metal Additive Manufacturing: Current state, opportunities and challenges

C Ioannidou, HH König, N Semjatov, U Ackelid… - Materials & Design, 2022 - Elsevier
Additive Manufacturing (AM) is becoming an important technology for manufacturing of
metallic materials. Laser-Powder Bed Fusion (L-PBF), Electron beam-Powder Bed Fusion (E …

Solidification modes during additive manufacturing of steel revealed by high-speed X-ray diffraction

HH König, NH Pettersson, A Durga, S Van Petegem… - Acta Materialia, 2023 - Elsevier
Solidification during fusion-based additive manufacturing (AM) is characterized by high
solidification velocities and large thermal gradients, two factors that control the solidification …

Effect of thermal cycles on laser direct energy deposition repair performance of nickel-based superalloy: Microstructure and tensile properties

Y Zeng, L Li, W Huang, Z Zhao, W Yang… - International Journal of …, 2022 - Elsevier
Solidification conditions and cooling rate can significantly affect the microstructure and the
mechanical properties of Nickel-based superalloy GH4169 components repaired by laser …

[HTML][HTML] Microstructure evolution during laser-directed energy deposition of tool steel by in situ synchrotron X-ray diffraction

ACF Silveira, R Fechte-Heinen, J Epp - Additive Manufacturing, 2023 - Elsevier
Additive manufacturing (AM) processing of tool steels has a high level of complexity due to
the martensitic transformation and consequently tempering during the component …

[HTML][HTML] A quantitative study of thermal cycling along the build direction of Ti-6Al-4V produced by laser powder bed fusion

M Chen, M Simonelli, S Van Petegem, YY Tse… - Materials & Design, 2023 - Elsevier
During laser-powder bed fusion (l-PBF) the printed material is subjected to multiple fast
heating and cooling cycles when the laser interacts with neighboring tracks or layers above …

The impact of grain-scale strain localization on strain hardening of a high-Mn steel: Real-time tracking of the transition from the γ→ ε→ α'transformation to twinning

IR Souza Filho, A Dutta, DRA Junior, W Lu… - Acta Materialia, 2020 - Elsevier
Strain partitioning and localization were investigated in a high-Mn steel (17.1 wt.% Mn)
during tensile testing by a correlative probing approach including in-situ synchrotron X-ray …

Ultrastrong and ductile additively-manufactured medium-carbon steel via modulating austenite stability

J Wang, S Wang, W Li, Y Yao, X Wang, Z Yang… - Scripta Materialia, 2024 - Elsevier
Selective laser melting (SLM) is a very promising near net shape approach to manufacture
metallic complex-shaped parts. However, it is highly challenging to manufacture ultrahigh …

Advancements in operando X-ray techniques for metal additive manufacturing

KK Singh, A Wakai, A Moridi - Communications Materials, 2024 - nature.com
Operando X-ray techniques have enabled real-time observation and analysis of metal
additive manufacturing (AM) processes, providing invaluable insights into solidification …

Achieving homogeneity in a high-Fe β-Ti alloy laser-printed from blended elemental powders

FF Ahmed, SJ Clark, CLA Leung, L Stanger, J Willmott… - Materials & Design, 2021 - Elsevier
Blended Elemental powders are an emerging alternative to pre-alloyed powders in metal
additive manufacturing due to the wider range of alloys producible with them and the cost …