Controlled Crystallographic Texture Orientation in Structural …
WEBLPBF process parameters such as laser power (P), scan speed (v), scan strategy, hatch distance (d), and powder layer thickness (t) influence the effects that melt pool shape, thermal gradient (G), and migration velocity of the …
Texture Evolution in Metallic Materials During Additive …
WEBOct 18, 2021 · The texture of Ti–6Al–4 V produced by PBF was observed to shift from fiber texture to a weak cube texture when scan direction was alternated by 90° between the layers (Thijs et al. 2013).
On the texture and strength of a 316L steel processed by powder …
WEBA strong texture formed in the material toward BD and a transversal plane is a main contributor to the tensile property variety in the PBF material. The obtained steel samples exhibit rather a high yield strength of 550 MPa–590 MPa depending on the tensile direction.
Control of Anisotropic Crystallographic Texture in Powder Bed …
WEBNov 11, 2021 · To control the texture in L-PBF samples, the following must be considered: 1. The L-PBF process parameters must be controlled to achieve two-dimensional growth of columnar cells, restricted to the y–z section perpendicular to the scanning x-direction, such that the evolution to strong texture can be realized. 2.
Correlation between surface texture and internal defects in …
WEBNov 24, 2021 · This study aims to investigate the correlation between the surface texture and internal defects or density of laser-beam powder-bed fusion (LB-PBF) parts.
Understanding the process-microstructure correlations for tailoring …
WEBDec 1, 2019 · In this work, the variation of L-PBF process parameters, i.e. laser speed, build platform preheating temperature and an alternative M&S scan strategy, was used to manipulate the microstructure, texture and the yield strength of an austenitic AHSS.
Predicting anisotropic behavior of textured PBF-LB materials via ...
WEBApr 9, 2023 · It is well established that large temperature gradients cause strong textures in as-built metal parts manufactured via laser beam powder bed fusion. Columnar grains with a preferred crystallographic orientation dominate the microstructure of such materials resulting in a pronounced anisotropic mechanical behavior.
A Comparative Study on the Microstructure and Texture Evolution …
WEBDec 15, 2021 · This study aims to characterize the microstructure and crystallographic texture of 17-4 PH stainless steel (SS) manufactured with laser powder directed energy deposition (LP-DED) and laser powder...
Revealing the macroscale texture in an additive manufactured Co …
WEBNov 1, 2023 · The (100)-fiber texture is clearly visible in ODF cross-section (φ2 = 0°) for the cast Co-Cr-Mo sample, while the L-PBF sample (see supplementary information Fig. S2) demonstrates different symmetry discussed below.
What is Powder Bed Fusion 3D Printing? | Additive Manufacturing
WEBJun 18, 2022 · Powder bed fusion (PBF) is a 3D printing method that joins powdered material point by point using an energy source, typically a laser beam or an electron beam. Powder bed fusion is one of the most common 3D printing techniques used for industrial additive manufacturing (AM).
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