Understanding columnar-to-equiaxed transition (CET) is a critical aspect of microstructural evolution in additively manufactured (AM) alloys, since proportions of columnar and equiaxed morphologies impact strength- ductility synergy. Traditional …
Achieving a specific solidification morphology during the directed energy deposition process can be key to desired properties of the deposited part. The careful control of thermal gradient and cooling rates can be utilized to achieve these grain …
The temperature distribution, geometry and size of the melt pool, and solidification parameters were computed using the heat transfer and material flow model for the directed energy deposition process. The thermal cycle and melt pool size were …