|About this Abstract
||Materials Science & Technology 2019
||Sintering and Related Powder Processing Science and Technologies
||P2-73: Investigation of Mechanical Properties of CoCrFeMnNi High Entropy Alloys Fabricated by Rapid Solidification Process
||Hyeonjeong You, Kwang-Yong Jeong, Cheenepalli Nagarjuna, RAECHEOL KANG, Soon-Jik Hong
|On-Site Speaker (Planned)
High entropy alloys (HEAs) usually containing at least five principal elements by adding 5~35 at% each element. As a result, high mixed entropy occurs, so that an intermetallic compound is not formed and a single solid solution is formed, so that the mechanical properties are relatively higher than those of the conventional alloy. In this study, we have fabricated FCC structured single phase of CoCrFeMnNi HEAs by the combination of two approaches, and systematically investigated and comparted their mechanical properties. Initially HEAs was fabricated by the casting plus rolling method, and characterized. Secondly, HEAs was fabricated by the powder metallurgy process such as gas atomization, followed by spark plasma sintering. The crystal structure of the specimens from both processes was analyzed by XRD. The fracture surfaces, and cross-sectional micrographs of the HEAs specimens were characterized by SEM. The mechanical properties including the compressive strength, micro vickers hardness were analyzed.
||Definite: At-meeting proceedings