About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
L-DED Processability of AISI 410L Stainless Steel |
Author(s) |
Jeferson Pacheco, Ana Sofia De Oliveira, Marcelo Veiga, Vitor Meura, Paulo Bloemer |
On-Site Speaker (Planned) |
Jeferson Pacheco |
Abstract Scope |
The relationship processability-mechanical properties of metallic alloys through Additive Manufacturing (AM) technology is a constant challenge faced by several industrial segments. Among the different AM processes, Laser-Directed Energy Deposition (L-DED) offers the capability to build large parts from layer-by-layer deposition. However, the thermal cycles inherent to the multilayer deposition directly affect the microstructure and, consequently, the mechanical properties of the AM part. This study is part of an on-going project that asses the relationship microstructure-properties of AM materials aiming to gain a better understanding of procedures to enhance properties of L-DED components using an atomized AISI 410L stainless steel. The microstructure and mechanical properties (measured by microhardness, tensile and impact tests) were characterized in the as-built and heat-treated conditions to address the impact of the multiple thermal cycling. A significantly difference in the mechanical properties was observed in the two proposed conditions, being linked to the microstructure and thermal cycles. |