Microstructure–Texture–Mechanical Property Correlation in Laser-Welded Dual-Phase and Interstitial-Free Steel Blanks

Vukkum, Venkata Bhuvaneswari; Ray, Trishita; Karmakar, A.; Das, Souvik

doi:10.1007/s11665-023-07959-6

Cited by 3 publications

(1 citation statement)

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“…AM techniques are suitable for printing complex shapes and compositions due to their layer-by-layer process and high solidification rates. As a result, these techniques are beginning to replace many conventional manufacturing processes, such as forging and casting [4][5][6][7]. Laser powder bed fusion (LPBF) is a popular metal additive manufacturing (AM) technique that has been used for printing different metallic systems, including iron, magnesium, and aluminum alloys [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Influence of Spatter on Porosity, Microstructure, and Corrosion of Additively Manufactured Stainless Steel Printed Using Different Island Size

Vukkum,

Sanborn,

Shepherd

et al. 2024

Crystals

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Specimens of 316 L stainless steel were printed using laser powder bed fusion (LPBF), a popular metal additive manufacturing (AM) technique, with varying island sizes. Not many researchers have considered the impact of spatter while optimizing LPBF printing parameters. In this research, the influence of spatter was considered while also investigating the effect of varied island size on the microstructure, surface roughness, microhardness, and corrosion resistance of LPBF-316 L. No correlation was observed between surface roughness or microhardness and minor variations in island size. However, a correlation was drawn between varied island sizes and porosity in LPBF-316 L. The specimens associated with larger island sizes showed significantly enhanced corrosion resistance due to fewer manufacturing defects and reduced porosity, attributed to the minimal influence of the spatter. Based on analysis, the LPBF parameters were revised, which lead to superior corrosion resistance of LPBF-316 L, attributed to high density and reduced porosity.

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