A review of machine learning techniques for process and performance optimization in laser beam powder bed fusion additive manufacturing

J Liu, J Ye, D Silva Izquierdo, A Vinel… - Journal of Intelligent …, 2023 - Springer
Laser beam powder bed fusion (LB-PBF) is a widely-used metal additive manufacturing
process due to its high potential for fabrication flexibility and quality. Its process and …

A state-of-the-art review on fatigue performance of powder bed fusion-built alloy 718

E Sadeghi, P Karimi, R Esmaeilizadeh, F Berto… - Progress in Materials …, 2023 - Elsevier
Abstract Alloy 718 is a Ni-Fe-based superalloy, which has been successfully adapted to
powder bed fusion (PBF) additive manufacturing because of the alloy's adaptability with …

Feature-based volumetric defect classification in metal additive manufacturing

A Poudel, MS Yasin, J Ye, J Liu, A Vinel, S Shao… - Nature …, 2022 - nature.com
Volumetric defect types commonly observed in the additively manufactured parts differ in
their morphologies ascribed to their formation mechanisms. Using high-resolution X-ray …

Homogenization timing effect on microstructure and precipitation strengthening of 17–4PH stainless steel fabricated by laser powder bed fusion

K Li, J Zhan, T Yang, AC To, S Tan, Q Tang, H Cao… - Additive …, 2022 - Elsevier
Effective post-heat treatment is critical to achieve desired microstructure for high
performance of additive manufacturing (AM) components. In this work, the timing influence of …

Powder recycling effects on porosity development and mechanical properties of Hastelloy X alloy during laser powder bed fusion process

X He, D Kong, Y Zhou, L Wang, X Ni, L Zhang… - Additive …, 2022 - Elsevier
This study compares and analyzes the morphology, size, oxygen content, and microstructure
of virgin and recycled powders after six iterations to assess the mechanical properties of the …

Ti-6Al-4V powder characteristics in laser powder bed fusion: The effect on tensile and fatigue behavior

A Soltani-Tehrani, M Habibnejad-Korayem, S Shao… - Additive …, 2022 - Elsevier
This work investigates the effects of powder characteristics, particularly particle size
distribution (PSD), on the micro-/defect-structure, tensile, and fatigue properties of Grade 23 …

Ti-6Al-4V powder reuse in laser powder bed fusion (L-PBF): The effect on porosity, microstructure, and mechanical behavior

A Soltani-Tehrani, JP Isaac, HV Tippur, DF Silva… - International Journal of …, 2023 - Elsevier
This work investigated the effects of powder reuse, and location dependency on the
mechanical properties of plasma atomized Ti-6Al-4V Grade 5 parts manufactured via laser …

Fatigue life optimization for 17-4Ph steel produced by selective laser melting

J Linares, J Chaves-Jacob, Q Lopez… - Rapid Prototyping …, 2022 - emerald.com
Purpose The mechanical characterization of selective laser melting (SLM) parts is an
industrial challenge. This paper aims to propose a methodology to control the fatigue life of …

Defect criticality analysis on fatigue life of L-PBF 17-4 PH stainless steel via machine learning

A Li, S Baig, J Liu, S Shao, N Shamsaei - International Journal of Fatigue, 2022 - Elsevier
Defects innate in additively manufactured components may lead to inferior and more scatter
in fatigue lives, thus challenging the qualification of these components in fatigue-critical …

Improved high cycle fatigue performance of additively manufactured 17-4 PH stainless steel via in-process refining micro-/defect-structure

PD Nezhadfar, K Anderson-Wedge, SR Daniewicz… - Additive …, 2020 - Elsevier
The usage of an appropriate shield gas for laser beam powder bed fusion (LB-PBF) of the
popular 17− 4 precipitation hardened (PH) stainless steel (SS) has long been debated in the …