[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 …

Subsurface cooling rates and microstructural response during laser based metal additive manufacturing

V Thampy, AY Fong, NP Calta, J Wang, AA Martin… - Scientific reports, 2020 - nature.com
Laser powder bed fusion (LPBF) is a method of additive manufacturing characterized by the
rapid scanning of a high powered laser over a thin bed of metallic powder to create a single …

Cooling dynamics of two titanium alloys during laser powder bed fusion probed with in situ X-ray imaging and diffraction

NP Calta, V Thampy, DRC Lee, AA Martin… - Materials & Design, 2020 - Elsevier
Metal parts produced by laser powder bed fusion (LPBF) additive manufacturing exhibit
characteristic microstructures comparable to those observed in laser welding. The primary …

[HTML][HTML] Microstructure formation during laser powder bed fusion of Ti-22Al-25Nb with low and high pre-heating temperatures

J Gussone, MW Rackel, S Tumminello… - Materials & Design, 2023 - Elsevier
We compare microstructure formation during laser powder bed fusion (LPBF) of a Ti-22Al-
25Nb alloy applying low and high pre-heating build plate temperatures. Fast cooling rates …

Laser powder bed fusion of Ti-6Al-4V parts: Thermal modeling and mechanical implications

M Masoomi, SM Thompson, N Shamsaei - International Journal of Machine …, 2017 - Elsevier
A continuum-scale modeling approach is developed and employed with three-dimensional
finite element analysis (FEA), for simulating the temperature response of a Ti-6Al-4V, two …

Numerical simulation in the melt pool evolution of laser powder bed fusion process for Ti6Al4V

Y Xu, D Zhang, J Deng, X Wu, L Li, Y Xie, R Poprawe… - Materials, 2022 - mdpi.com
In order to track the free interface of the melt pool and understand the evolution of the melt
pool, the flow of fluid, and the interface behavior of gas and liquid, a physical model is …

In Situ Microstructure Modification Using a Layerwise Surface-Preheating Laser Scan of Ti-6Al-4V during Laser Powder Bed Fusion

AA Tanrikulu, B Farhang, A Ganesh-Ram, H Hekmatjou… - Materials, 2024 - mdpi.com
An innovative in situ thermal approach in the domain of LPBF for Ti-6Al-4V fabrication has
been carried out with results directing towards an improved fatigue life without the need for …

Numerical and experimental analysis of heat distribution in the laser powder bed fusion of Ti-6Al-4V

K Karayagiz, A Elwany, G Tapia, B Franco… - IISE …, 2019 - Taylor & Francis
ABSTRACT Laser Powder Bed Fusion (LPBF) of metallic parts is a complex process
involving simultaneous interplay between several physical mechanisms such as …

Effect of helium as process gas on laser powder bed fusion of Ti-6Al-4V studied with operando diffraction and radiography

C Pauzon, S Van Petegem, E Hryha… - European Journal of …, 2022 - Taylor & Francis
The utilisation of helium as process gas in laser powder bed fusion limits the generation of Ti-
6Al-4V hot and incandescent spatters and enhances their cooling rate. In the present study …

Evolution of the microstructure of laser powder bed fusion Ti-6Al-4V during post-build heat treatment

DW Brown, V Anghel, L Balogh, B Clausen… - … Materials Transactions A, 2021 - Springer
The microstructure of additively manufactured Ti-6Al-4V (Ti64) produced by a laser powder
bed fusion process was studied during post-build heat treatments between 1043 K (770° C) …