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Dovgyy, Bogdan
Engineering and Physical Sciences Research Council
in Cooperation with on an Cooperation-Score of 37%
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Publications (7/7 displayed)
- 2021Alloy design against the solidification cracking in fusion additive manufacturing: an application to a FeCrAl alloy
- 2020The role of side-branching in microstructure development in laser powder-bed fusioncitations
- 2020Comprehensive assessment of the printability of CoNiCrFeMn in Laser Powder Bed Fusioncitations
- 2020Cyclic plasticity and fatigue damage of CrMnFeCoNi high entropy alloy fabricated by laser powder-bed fusioncitations
- 2018Epitaxial growth in 316L steel and CoCrFeMnNi high entropy alloy made by powder-bed laser meltingcitations
- 2018Printability and microstructure of the CoCrFeMnNi high-entropy alloy fabricated by laser powder bed fusioncitations
- 2017Twinning induced plasticity in austenitic stainless steel 316L made by additive manufacturingcitations
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document
Epitaxial growth in 316L steel and CoCrFeMnNi high entropy alloy made by powder-bed laser melting
Abstract
This study presents our fundamental study to understand the crystal formation in rapid cooling of cubic crystalline alloys (namely, 316L steel and NiCoCrFeMn) and how crystal microstructure evolves during the repeated deposition of material in powder-bed laser melting. The rapid cooling results in extremely fine rod-like cells. Cells in a fresh meltpool epitaxially grow from existing grains in the substrate (or existing cells in previously solidified meltpools). It is found that the orientation of existing crystals and the thermal gradient are two governing variables for the evolution of cells in meltpools.