|About this Abstract
||3rd World Congress on High Entropy Alloys (HEA 2023)
||Understanding Processing Pathways for Chemical Short-range Order in Equiatomic CoCrNi Alloy
||Sakshi Bajpai, Yuan Tian, Yutong Bi, Xin Wang, Calvin H. Belcher, Vivek Verma, Benjamin E. MacDonald, Timothy J. Rupert, Xiaoqing Pan, Enrique J. Lavernia, Diran Apelian
|On-Site Speaker (Planned)
The experimental detection of chemical short-range ordering (CSRO) in complex concentrated alloys (CCAs) has proven to be a difficult task. While predictions of CSRO have been well demonstrated by state-of-the-art modeling and simulation studies, there is a lack of conclusive experimental evidence regarding the evolution of CSRO in CCAs and its impact on mechanical behavior. This work systematically investigates the processing pathways that may induce CSRO in the ternary CoCrNi alloy by varying thermal treatment temperature, time, and cooling rates and characterizing the resulting microstructure. Appreciable variations in mechanical properties are established as a function of processing. Contributions to these properties are quantified with respect to various microstructural features measured through SEM EBSD as well as advanced TEM techniques. Critical considerations for the effective processing of CCAs are proposed and discussed.
||Planned: Metallurgical and Materials Transactions