About this Abstract |
Meeting |
1st World Congress on High Entropy Alloys (HEA 2019)
|
Symposium
|
High Entropy Alloys 2019
|
Presentation Title |
Superior Tensile Properties of 1%C-CoCrFeMnNi High-entropy Alloy Additively Manufactured by Selective Laser Melting |
Author(s) |
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 |
Abstract Scope |
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. |
Proceedings Inclusion? |
Undecided |