|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Superior Tensile Properties of 1%C-CoCrFeMnNi High-entropy Alloy Additively Manufactured by Selective Laser Melting
||Hyoung Seop Kim, Jeong Min Park, Jungho Choe, Jung Gi Kim, Jae Wung Bae, Jongun Moon, Sangsun Yang, Kyung Tae Kim, Ji-Hun Yu
|On-Site Speaker (Planned)
||Hyoung Seop Kim
CoCrFeMnNi high-entropy alloys containing 1 at% carbon (C-HEAs), were additively manufactured using selective laser melting (SLM) at two different laser scanning speeds. Superior tensile properties of the as-built C-HEA (to previously reported ones) were achieved by utilizing multiple strengthening mechanisms (i.e., solid solution, grain refinement, dislocation density, and nano-precipitation). In particular, combining higher dislocation density and more nano-precipitates with the slower SLM scanning process resulted in C-HEA with enhanced yield strength and reasonable ductility.