About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
In-Situ Monitoring and Control of Solidification & Deformation Processes in Metal Additive Manufacturing
|
| Presentation Title |
F-58: Microstructural Origins of Tensile Anisotropy and Deformation Behaviour in Additively Manufactured SS201 Stainless Steel |
| Author(s) |
Suraj Prasad, Prita Pant |
| On-Site Speaker (Planned) |
Suraj Prasad |
| Abstract Scope |
This study investigates the microstructure and anisotropic mechanical behaviour of additively manufactured (AMed) SS201 stainless steel. Uniaxial tensile test results demonstrate that as-fabricated samples tested along the scan direction exhibited a higher ultimate tensile strength (UTS) of 996.22 ± 3.03 MPa, compared to those tested along build direction, which showed UTS of 835.09 ± 2.38 MPa. Microstructure analysis identified the presence of various microstructural features consisting of fine cellular sub-grain, melt pool boundaries, and elemental segregation at cell boundaries. To address the anisotropic behavior, heat treatments were carried out to homogenize the mechanical response. Further, detailed electron back-scattered diffraction (EBSD) and transmission electron microscopy (TEM) analyses were conducted to elucidate the underlying deformation mechanisms in as-fabricated and heat-treated samples. These combined investigations highlight the critical role of grain morphology, solidification structures, and elemental segregation on the deformation behaviour of AMed SS201 stainless steel. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Mechanical Properties |