[HTML][HTML] Enhancement of vacancy diffusion by C and N interstitials in the equiatomic FeMnNiCoCr high entropy alloy

E Lu, J Zhao, I Makkonen, K Mizohata, Z Li, M Hua… - Acta Materialia, 2021 - Elsevier
We present evidence of homogenization of atomic diffusion properties caused by C and N
interstitials in an equiatomic single-phase high entropy alloy (FeMnNiCoCr). This …

Vacancy migration energies in CrMnFeCoNi, CrFeCoNi, and CrFeNi alloys and their effect on atomic diffusion

K Sugita, R Ogawa, M Mizuno, H Araki, A Yabuuchi - Scripta Materialia, 2022 - Elsevier
The mechanism of sluggish diffusion in high-entropy alloys has not been understood
completely. In this study, we aimed to understand the mechanism by estimating the vacancy …

Radioactive isotopes reveal a non sluggish kinetics of grain boundary diffusion in high entropy alloys

M Vaidya, KG Pradeep, BS Murty, G Wilde… - Scientific reports, 2017 - nature.com
High entropy alloys (HEAs) have emerged as a new class of multicomponent materials,
which have potential for high temperature applications. Phase stability and creep …

Irradiation-induced segregation at dislocation loops in CoCrFeMnNi high entropy alloy

WY Chen, JD Poplawsky, Y Chen, W Guo, JW Yeh - Materialia, 2020 - Elsevier
To understand the redistribution of alloying elements in high entropy alloys under irradiation,
a CoCrFeMnNi alloy was irradiated with 1 MeV Kr ions at room temperature and at 500° C …

Exploring radiation induced segregation mechanisms at grain boundaries in equiatomic CoCrFeNiMn high entropy alloy under heavy ion irradiation

CM Barr, JE Nathaniel II, KA Unocic, J Liu, Y Zhang… - Scripta Materialia, 2018 - Elsevier
High entropy alloys have gained significant interest due to several unique properties
including enhanced radiation resistance. In this work, radiation induced segregation, a key …

Mobility of point defects in CoCrFeNi-base high entropy alloys

N Hashimoto, Y Ono - Intermetallics, 2021 - Elsevier
The in-situ observation of microstructural evolution under electron irradiation was performed
in order to experimentally estimate the mobility of vacancy and interstitial in 316 stainless …

Sluggish diffusion in co–cr–fe–mn–ni high-entropy alloys

KY Tsai, MH Tsai, JW Yeh - Acta Materialia, 2013 - Elsevier
Sluggish diffusion kinetics is an important contributor to the outstanding properties of high-
entropy alloys. However, the diffusion kinetics in high-entropy alloys has never been probed …

Effect of local chemical order on the irradiation-induced defect evolution in CrCoNi medium-entropy alloy

Z Zhang, Z Su, B Zhang, Q Yu, J Ding… - Proceedings of the …, 2023 - National Acad Sciences
High-(and medium-) entropy alloys have emerged as potentially suitable structural materials
for nuclear applications, particularly as they appear to show promising irradiation resistance …

Effect of interstitial carbon on the evolution of early-stage irradiation damage in equi-atomic FeMnNiCoCr high-entropy alloys

E Lu, I Makkonen, K Mizohata, Z Li… - Journal of Applied …, 2020 - pubs.aip.org
Owing to their excellent radiation tolerance, some of the high-entropy alloys (HEAs) are
considered as potential candidates for structural materials in extreme conditions. In order to …

Diffusion-mediated chemical concentration variation and void evolution in ion-irradiated NiCoFeCr high-entropy alloy

Z Fan, W Zhong, K Jin, H Bei, YN Osetsky… - Journal of Materials …, 2021 - Springer
High-entropy alloys (HEAs) are proposed as potential structural materials for advanced
nuclear systems, but little is known about the response of matrix chemistry in HEAs upon …