|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||J-129: Structural Evolution and Thermal Stability of Nanocrystalline High Entropy Alloy through Cryomilling
||Harshavardhan Saragadam, Yagnesh Shadangi, Bhaskar Majumdar, Nilay Krishna Mukhopadhyay
|On-Site Speaker (Planned)
The high-entropy alloys (HEA) exhibits unique properties in term of microstructural stability and mechanical strength. It is of paramount importance to fabricate nanocrystalline HEAs in bulk quantity for prospective coating application and need also to establish its thermal stability. In the present investigation a non-equiatomic Al-Si-Cr-Mn-Fe-Ni-Cu HEA was prepared by vacuum induction melting followed by cryomilling (CM) at 123 K upto 10h. The phase evolution/ composition, morphology and thermal stability of CM HEAs powder were studied through XRD, TEM, SEM and DSC respectively. Further efforts were made to consolidate the CM HEAs by spark plasma sintering (SPS). The microstructural characteristics and mechanical properties of these HEAs were studied through electron microscopy and instrumented indentation techniques. The present study provides an insight into the microstructural evolutions and the thermal stability of nanocrystalline HEAs subjected to CM.
KEYWORDS: High-entropy alloy; Cryomilling; Spark Plasma Sintering; Instrumented indentation.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume