The effect of printing parameters on sintered properties of extrusion-based additively manufactured stainless steel 316L parts

2021 ◽  
Author(s):  
Waqar Hassan ◽  
Muhammad Asad Farid ◽  
Anna Tosi ◽  
Kedarnath Rane ◽  
Matteo Strano
Keyword(s):  
Stainless Steel ◽  
Stainless Steel 316L ◽  
Printing Parameters

Effect of Different Coating Techniques with Aluminum on the Corrosion Behavior of Stainless Steel 316L in Seawater

2012 ◽  
Vol 15 (3) ◽  
pp. 112-122
Author(s):  
Ali H. Ataiwi ◽  
◽  
Abdul Khaliq F. Hamood ◽  
Rana A. Majed ◽  
◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
Stainless Steel 316L

scholarly journals Experimental and Numerical Evaluation of Mechanical Properties of 3D-Printed Stainless Steel 316L Lattice Structures

2021 ◽  
Author(s):  
M. Carraturo ◽  
G. Alaimo ◽  
S. Marconi ◽  
E. Negrello ◽  
E. Sgambitterra ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Mechanical Behavior ◽  
Numerical Simulations ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Lattice Structures ◽  
Stainless Steel 316L ◽  
Research Attention ◽  
Octet Truss

AbstractAdditive manufacturing (AM), and in particular selective laser melting (SLM) technology, allows to produce structural components made of lattice structures. These kinds of structures have received a lot of research attention over recent years due to their capacity to generate easy-to-manufacture and lightweight components with enhanced mechanical properties. Despite a large amount of work available in the literature, the prediction of the mechanical behavior of lattice structures is still an open issue for researchers. Numerical simulations can help to better understand the mechanical behavior of such a kind of structure without undergoing long and expensive experimental campaigns. In this work, we compare numerical and experimental results of a uniaxial tensile test for stainless steel 316L octet-truss lattice specimen. Numerical simulations are based on both the nominal as-designed geometry and the as-build geometry obtained through the analysis of µ-CT images. We find that the use of the as-build geometry is fundamental for an accurate prediction of the mechanical behavior of lattice structures.

Crystallographic orientation dependence of Charpy impact behaviours in stainless steel 316L fabricated by laser powder bed fusion

2021 ◽  
pp. 102104
Author(s):  
Xianglong Wang ◽  
Oscar Sanchez-Mata ◽  
Sıla Ece Atabay ◽  
Jose Alberto Muñiz-Lerma ◽  
Mohammad Attarian Shandiz ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Crystallographic Orientation ◽  
Charpy Impact ◽  
Orientation Dependence ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Stainless Steel 316L ◽  
Powder Bed

scholarly journals Post-Processing and Surface Characterization of Additively Manufactured Stainless Steel 316L Lattice: Implications for BioMedical Use

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1376
Author(s):  
Alex Quok An Teo ◽  
Lina Yan ◽  
Akshay Chaudhari ◽  
Gavin Kane O’Neill
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Surface Characterization ◽  
High Surface ◽  
Surface Characteristics ◽  
Post Processing ◽  
Stainless Steel 316L ◽  
Processing Methods ◽  
Particulate Debris

Additive manufacturing of stainless steel is becoming increasingly accessible, allowing for the customisation of structure and surface characteristics; there is little guidance for the post-processing of these metals. We carried out this study to ascertain the effects of various combinations of post-processing methods on the surface of an additively manufactured stainless steel 316L lattice. We also characterized the nature of residual surface particles found after these processes via energy-dispersive X-ray spectroscopy. Finally, we measured the surface roughness of the post-processing lattices via digital microscopy. The native lattices had a predictably high surface roughness from partially molten particles. Sandblasting effectively removed this but damaged the surface, introducing a peel-off layer, as well as leaving surface residue from the glass beads used. The addition of either abrasive polishing or electropolishing removed the peel-off layer but introduced other surface deficiencies making it more susceptible to corrosion. Finally, when electropolishing was performed after the above processes, there was a significant reduction in residual surface particles. The constitution of the particulate debris as well as the lattice surface roughness following each post-processing method varied, with potential implications for clinical use. The work provides a good base for future development of post-processing methods for additively manufactured stainless steel.

Long-term antibacterial and stable chlorhexidine-polydopamine coating on stainless steel 316L

2018 ◽  
Vol 122 ◽  
pp. 147-153 ◽  
Author(s):  
Nurizzati Mohd Daud ◽  
Nabillah Athirah Masri ◽  
Nik Ahmad Nizam Nik Malek ◽  
Saiful Izwan Abd Razak ◽  
Syafiqah Saidin
Keyword(s):  
Stainless Steel ◽  
Stainless Steel 316L

Physical properties and microstructure study of stainless steel 316L alloy fabricated by selective laser melting

2017 ◽  
Author(s):  
Nurul Kamariah Md Saiful Islam ◽  
Wan Sharuzi Wan Harun ◽  
Saiful Anwar Che Ghani ◽  
Mohd Asnawi Omar ◽  
Mohd Hazlen Ramli ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Physical Properties ◽  
Selective Laser Melting ◽  
Stainless Steel 316L ◽  
Laser Melting

Sintering Stainless Steels with Boron Addition in Nitrogen Base Atmosphere

2007 ◽  
Vol 534-536 ◽  
pp. 733-736 ◽  
Author(s):  
J. Abenojar ◽  
D. Esteban ◽  
M.A. Martinez ◽  
Francisco Velasco
Keyword(s):  
Stainless Steel ◽  
Boron Nitride ◽  
Bending Strength ◽  
Wear Behavior ◽  
Dimensional Change ◽  
Nuclear Industry ◽  
Boron Addition ◽  
Stainless Steel 316L ◽  
Nitrogen Base ◽  
Chromium Nitrides

Stainless steel has become increasingly used in the nuclear industry recently. Thus, this study is aimed at investigating stainless steel 316L with boron addition and the possibility of sinter these materials in nitrogen rich atmospheres. By analyzing the final product, the properties of the stainless steel 316L (good mechanical properties and high corrosion resistance) with the boron neutron absorption properties were found to unify. The P/M technologies enable higher boron quantities to be added to the steel. This was not possible with the solidification conventional technologies, as segregation is produced in the latter. Mixtures with 0.75 and 1.5% boron were prepared. Uniaxial compaction (at 700 MPa) was carried out to study the green density of compacted materials. The sintering atmosphere used was N2-10%H2-0.1%CH4, and was used to form boron nitrides instead of chromium nitrides. Although some boron nitride was formed, not all chromium nitride formation was avoided. The sintered samples were characterized through their physical properties (density and dimensional change), chemical analysis (carbon and nitrogen contents), mechanical behavior (bending strength and hardness) and wear behavior. To finish the materials characterization, a microstructural study is proposed. Lastly, the wear tracks were observed by SEM. Boron nitride has precipitated in grain boundaries, making more difficult the sintering of the material and reducing the properties of the stainless steel.

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