scholarly journals Mechanical Characterization of Selectively Laser Melted 316L Stainless Steel Body Centered Cubic Unit Cells and Lattice of Varying Node Radii and Strut Angle

2018 ◽  
Author(s):  
Christopher James Hornbeak
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Mechanical Characterization ◽  
Body Centered Cubic ◽  
Unit Cells ◽  
Steel Body

scholarly journals Microstructural and Mechanical Characterization of Thin-Walled Tube Manufactured with Selective Laser Melting for Stent Application

2021 ◽  
Author(s):  
E. Langi ◽  
L. G. Zhao ◽  
P. Jamshidi ◽  
M. M. Attallah ◽  
V. V. Silberschmidt ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Selective Laser Melting ◽  
316L Stainless Steel ◽  
Mechanical Characterization ◽  
Patient Specific ◽  
Laser Melting ◽  
Stress Strain ◽  
Thin Walled Tube ◽  
Thin Walled

AbstractThis paper focuses on microstructural and mechanical characterization of metallic thin-walled tube produced with additive manufacturing (AM), as a promising alternative technique for the manufacturing of tubes as a feedstock for stents micromachining. Tubes, with a wall thickness of 500 μm, were made of 316L stainless steel using selective laser melting. Its surface roughness, constituting phases, underlying microstructures and chemical composition were analyzed. The dependence of hardness and elastic modulus on the crystallographic orientation were investigated using electron backscatter diffraction and nanoindentation. Spherical nanoindentation was performed to extract the indentation stress–strain curve from the load–displacement data. The obtained results were compared with those for a commercial 316L stainless steel stent. Both tube and commercial stent samples were fully austenitic, and the as-fabricated surface finish for the tube was much rougher than the stent. Microstructural characterization revealed that the tube had a columnar and coarse grain microstructure, compared to equiaxed grains in the commercial stent. Berkovich nanoindentation suggested an effect for the grain orientation on the hardness and Young’s modulus. The stress–strain curves and the indentation yield strength for the tube and stent were similar. The work is an important step toward AM of patient-specific stents.

scholarly journals Advanced Characterization of Additively Manufactured 316L Stainless Steel for Nuclear Applications

2021 ◽  
Vol 27 (S1) ◽  
pp. 2160-2161
Author(s):  
Lingfeng He ◽  
Laura Hawkins ◽  
Jingfan Yang ◽  
Xiang Liu ◽  
Miao Song ◽  
...  
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Advanced Characterization ◽  
Nuclear Applications
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