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 …

Optimization of laser energy density and scanning strategy on the forming quality of 24CrNiMo low alloy steel manufactured by SLM

X Tang, S Zhang, C Zhang, J Chen, J Zhang… - Materials …, 2020 - Elsevier
Selective laser melting (SLM) is among the best technologies to realize near-net forming of
metal parts. The process involves the matching of various process parameters to achieve the …

[HTML][HTML] Additive texturing of metallic implant surfaces for improved wetting and biotribological performance

S Dwivedi, AR Dixit, AK Das, K Adamczuk - Journal of Materials Research …, 2022 - Elsevier
The current study introduces a novel additive texturing method to fabricate samples with
dimple and groove textures through the laser-based powder bed fusion (PBF) technique …

Establishing specimen property to part performance relationships for laser beam powder bed fusion additive manufacturing

A Soltani-Tehrani, R Shrestha, N Phan, M Seifi… - International Journal of …, 2021 - Elsevier
This study investigates the possibility of correlating specimen property to part performance
for laser beam powder bed fusion (LB-PBF) additive manufacturing by altering the process …

[HTML][HTML] Multibranches of acoustic emission as identifier for deformation mechanisms in additively manufactured 316l stainless steel

Y Chen, B Gou, X Xu, X Ding, J Sun, EKH Salje - Additive Manufacturing, 2023 - Elsevier
The multiple collapse mechanisms of complex materials produced by additive
manufacturing (AM) were identified by measurements of the acoustic emission (AE) of the …

Uncovering grain and subgrain microstructure at the scale of additive manufacturing melt tracks with a scalable cellular automaton solidification model

L Yuan, JL Fattebert, C Sun, AS Sabau - Additive Manufacturing, 2024 - Elsevier
Metal additive manufacturing, characterized by rapid solidification, yields refined grains with
a distinctive cellular subgrain microstructure that plays a pivotal role in determining material …

Defect-associated microstructure evolution and deformation heterogeneities in additively manufactured 316L stainless steel

F Fan, M Jiang, P Wang, C Liu, Z Liu, Z Chen - Materials Science and …, 2022 - Elsevier
Previous research mainly focused on heterogenous microstructure modification to improve
mechanical properties, but how the microstructure evolves during deformation has not been …

Capability to detect and localize typical defects of laser powder bed fusion (L-PBF) process: An experimental investigation with different non-destructive techniques

E D'Accardi, R Krankenhagen, A Ulbricht… - Progress in Additive …, 2022 - Springer
Additive manufacturing (AM) technologies, generally called 3D printing, are widely used
because their use provides a high added value in manufacturing complex-shaped …

Predicting melt pool depth and grain length using multiple signatures from in-situ single camera two-wavelength imaging pyrometry for laser powder bed fusion

CKP Vallabh, S Sridar, W **ong, X Zhao - Journal of Materials Processing …, 2022 - Elsevier
In laser powder bed fusion (LPBF), the in-situ process signatures are known to have a direct
correlation with the microstructural properties of the solidified melt pool (MP). It is known that …

[HTML][HTML] In-situ microstructure control by laser post-exposure treatment during laser powder-bed fusion

M Hasanabadi, A Keshavarzkermai, H Asgari… - Additive Manufacturing …, 2023 - Elsevier
In-situ microstructure control is an important feature of laser powder-bed fusion (LPBF) that
enables the tailoring of the mechanical behaviour of additively manufactured metallic parts …