NSUF 24-5122: Probing the effect of specific chemical elements on the irradiation induced defects formation and evolution in Multi-Principal Element Alloys (MPEAs) at high temperatures

In situ ion irradiations will be conducted on two families of high entropy alloys (the refractory series based on the ternary Mo-Nb-Ti system and the Fe-Cr-Ni system, to which specific elements are added respectively. The irradiations will be done in a very systematic way to follow the defect formation and evolution as a function of dose (at 500C) in each system. By comparing the irradiation induced defects evolution in situ to doses as high as 10 dpa in each composition we will be able to assess the role of chemical element in helping (or not) radiation resistance/behavior of the system. During a previous NSUF award which was awarded in 2022 ( NSUF #22-4476) we completed the irradiations at room temperature. Now we need to do the experiments at high temperature (500C) to complete the experimental matrix and substantiate the important effect of temperature.

추가 정보

필드	값
Award Announced Date	2024-09-23T12:12:56.03
Awarded Institution	North Carolina State University
Facility Tech Lead	Wei-Ying Chen
Irradiation Facility	Intermediate Voltage Electron Microscopy (IVEM)-Tandem Facility
PI	Djamel Kaoumi
PI Email	[email protected]
Project Type	RTE
RTE Number	None