| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
|
| Presentation Title |
Aiming the Susceptibility to Weld Solidification Cracking in Laser Powder Bed Fusion 316L Stainless Steel |
| Author(s) |
Jhoan Sebastian Guzman, Jacque W. Berkson, Samuel Casto, Antonio Ramirez |
| On-Site Speaker (Planned) |
Jhoan Sebastian Guzman |
| Abstract Scope |
The wrought 316L Stainless Steel is widely known because of its high resistance to weld solidification cracking. This is due to its Ferrite-Austenite (FA) solidification mode. However, when 3D printing by laser powder bed fusion (LPBF), the solidification mode changes to a cellular austenitic (A) due to the high solidification rate experienced in the process. In this work, the transverse varestraint weldability testing was used to assess the susceptibility to weld solidification cracking of LPBF316L. Maximum crack length (MCL) and maximum crack distance (MCD) were measured and compare to the literature and metallographic characterization using scanning electron microscopy was done in the cracks. It was found that the saturated strain was at 4%. Also, the solidification mode changes due to the remelting over the test. Finally, the material printed within this study resulted in higher resistance to weld solidification cracking than those reported in the literature. |