Fabrication of multi-gradient heterostructured CoCrFeMnNi high-entropy alloy using laser metal deposition

GH Gu, ES Kim, H Kwon, S Son, RE Kim, TG Oh… - Materials Science and …, 2022 - Elsevier
Heterostructured materials have superior strength–ductility behavior than conventional
homogenous materials. In this study, a multi-gradient heterostructured CoCrFeMnNi high …

[HTML][HTML] Fabrication of spatially-variable heterostructured CoCrFeMnNi high entropy alloy by laser processing

J Shen, YT Choi, J Yang, J He, Z Zeng, N Zhou… - Materials Science and …, 2024 - Elsevier
This study investigates the fabrication of spatially-variable heterostructured CoCrFeMnNi
high entropy alloy (HEA) using pulsed laser processing. Two distinct fabrication approaches …

[HTML][HTML] Exceptional strength–ductility combination of CoCrFeMnNi high-entropy alloy with fully recrystallized structure by selective laser melting after post-deformation …

P Ji, Y Jia, P Ma, Y Mu, K Sun, G Wang - Journal of Materials Research and …, 2023 - Elsevier
The low yield strength of the equiatomic CoCrFeMnNi high-entropy alloy (HEA) at ambient
temperature severely limits its future application as engineering materials. Here, a …

Selective laser melted equiatomic CoCrFeMnNi high-entropy alloy: Microstructure, anisotropic mechanical response, and multiple strengthening mechanism

YK Kim, J Choe, KA Lee - Journal of Alloys and Compounds, 2019 - Elsevier
One of the major challenges of equiatomic CoCrFeMnNi HEA is to manufacture parts with
complex geometry that have higher yield strength. Equiatomic CoCrFeMnNi HEA was …

The relationship between thermo-mechanical history, microstructure and mechanical properties in additively manufactured CoCrFeMnNi high entropy alloy

H Li, Y Huang, J Sun, Y Lu - Journal of Materials Science & Technology, 2021 - Elsevier
Here, a single-track CoCrFeMnNi high entropy alloy (HEA) was successfully fabricated by
laser melting deposition (LMD). Combining the experimental observations and numerical …

[HTML][HTML] Additively manufactured CoCrFeNiMn high-entropy alloy via pre-alloyed powder

P Wang, P Huang, FL Ng, WJ Sin, S Lu, MLS Nai… - Materials & Design, 2019 - Elsevier
An equiatomic CoCrFeNiMn high-entropy alloy (HEA) powder is produced by vacuum
induction melting gas-atomization with argon gas. A detailed characterization reveals that …

[HTML][HTML] Superior temperature-dependent mechanical properties and deformation behavior of equiatomic CoCrFeMnNi high-entropy alloy additively manufactured by …

YK Kim, S Yang, KA Lee - Scientific reports, 2020 - nature.com
The microstructure, temperature-dependent mechanical properties and deformation
behaviors of equiatomic CoCrFeMnNi high-entropy alloy (HEA) additively manufactured by …

Effects of annealing process parameters on microstructural evolution and strength-ductility combination of CoCrFeMnNi high-entropy alloy

P Wang, J Chen, B Sun, D Zhu, Y Cao - Materials Science and Engineering …, 2022 - Elsevier
Microstructures and mechanical properties of the CoCrFeMnNi high-entropy alloys (HEAs)
treated by various annealing temperatures and times are investigated in this paper. Typical …

Enhanced strength-ductility of CoCrFeMnNi high-entropy alloy with inverse gradient-grained structure prepared by laser surface heat-treatment technique

B Zhang, J Chen, P Wang, B Sun, Y Cao - Journal of Materials Science & …, 2022 - Elsevier
The inverse gradient-grained CoCrFeMnNi high-entropy alloy with a desirable mechanical
property that evades the strength-ductility trade-off is fabricated by the process of cold rolling …

[HTML][HTML] Manipulation of microstructure and mechanical properties in N-doped CoCrFeMnNi high-entropy alloys

J Zhang, KN Yoon, MS Kim, HS Ahn, JY Kim, WH Ryu… - Metals, 2021 - mdpi.com
Herein, we carefully investigate the effect of nitrogen doping in the equiatomic CoCrFeMnNi
high-entropy alloy (HEA) on the microstructure evolution and mechanical properties. After …