Priyanshu Bajaj

TL;DR: In this paper, an overview of the different kinds of steels in use in fusion-based AM processes and present their microstructures, their mechanical and corrosion properties, their heat treatments and their intended applications.

TL;DR: In this article, the intrinsic heat treatment (IHT) of directed energy deposition (DED) can be used to trigger the precipitation of Al3Sc already during the LAM process, which is applicable to a wide range of precipitation-hardened alloys to trigger in-situ precipitation during LAM.

TL;DR: In this article, a simple approach for rapid process development using normalized process maps is proposed, using plots of normalized energy density vs. normalized hatch spacing, which is further refined using analytical heat transfer models to predict melt pool size.

TL;DR: Results show that in-situ alloying can be successfully employed to enable faster and cost-efficient rapid alloy development for Laser powder-bed fusion.

TL;DR: In this article, the authors control the emerging grain patterns in a representative alloy (AISI 316L austenitic stainless steel) by creating linear strings for unidirectional scans, while a chessboard grain pattern arises by applying a 90°-rotation between layers.