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Low cycle fatigue performances of Al0.3CoCrFeNi high entropy alloys: In situ neutron diffraction studies on the precipitation effects

https://doi.org/10.1016/j.intermet.2024.108241

Lyu, Zongyang; Liu, Chuhao; Xie, Di; Feng, Rui; Yu, Dunji; Chen, Yan; An, Ke; Gao, Yanfei; Wang, Huamiao; Liaw, Peter K (May 2024, Intermetallics)

Free, publicly-accessible full text available May 1, 2025
Copper effects on the microstructures and deformation mechanisms of CoCrFeNi high entropy alloys

https://doi.org/10.1063/5.0201647

Amalia, Lia; Li, Yongkang; Bei, Hongbin; Chen, Yan; Yu, Dunji; An, Ke; Lyu, Zongyang; Liaw, Peter K; Zhang, Yanwen; Ding, Qingqing; et al (April 2024, Applied Physics Letters)

In situ neutron diffraction experiments have been performed to investigate the deformation mechanisms on CoCrFeNi high entropy alloys (HEAs) with various amounts of doped Cu. Lattice strain evolution and diffraction peak analysis were used to derive the stacking fault probability, stacking fault energy, and dislocation densities. Such diffraction analyses indirectly uncovered that a lower degree of Cu doping retained the twinning behavior in undoped CoCrFeNi HEAs, while increasing the Cu content increased the Cu clusterings which suppressed twinning and exhibited prominent dislocation strengthening. These results agree with direct observations by transmission electron microscopy.
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Micromechanical origin for the wide range of strength-ductility trade-off in metastable high entropy alloys†

https://doi.org/10.1016/j.scriptamat.2023.115439

Lyu, Zongyang; Li, Zehao; Sasaki, Taisuke; Gao, Yanfei; An, Ke; Chen, Yan; Yu, Dunji; Hono, Kazuhiro; Liaw, Peter K. (July 2023, Scripta Materialia)

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Passivity of AlCrFeMnTi and AlCrFeCoNi high–entropy alloys in Hanks’ solution

https://doi.org/10.1016/j.corsci.2022.110828

Tanji, Ayoub; Feng, Rui; Lyu, Zongyang; Sakidja, Ridwan; Liaw, Peter K.; Hermawan, Hendra (January 2023, Corrosion Science)

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Plastic anisotropy and twin distributions near the fatigue crack tip of textured Mg alloys from in situ synchrotron X-ray diffraction measurements and multiscale mechanics modeling

https://doi.org/10.1016/j.jmps.2022.104936

Xie, Di; Zhang, Wei; Lyu, Zongyang; Liaw, Peter K.; Tran, Huy; Chew, Huck Beng; Wei, Yujie; Ren, Yang; Gao, Yanfei (August 2022, Journal of the Mechanics and Physics of Solids)

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Micromechanical origin of the enhanced ductility in twinless duplex Mg–Li alloy

https://doi.org/10.1016/j.msea.2021.141305

Xie, Di; Lyu, Zongyang; Fan, Mingyu; Chew, Huck Beng; Liaw, Peter K.; Bei, Hongbin; Zhang, Zhongwu; Gao, Yanfei (May 2021, Materials Science and Engineering: A)
null (Ed.)
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In situ monitoring of dislocation, twinning, and detwinning modes in an extruded magnesium alloy under cyclic loading conditions

https://doi.org/10.1016/j.msea.2021.140860

Xie, Di; Lyu, Zongyang; Li, Yuan; Liaw, Peter K.; Chew, Huck Beng; Ren, Yang; Chen, Yan; An, Ke; Gao, Yanfei (March 2021, Materials Science and Engineering: A)
null (Ed.)
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Effects of Constituent Elements and Fabrication Methods on Mechanical Behavior of High-Entropy Alloys: A Review

https://doi.org/10.1007/s11661-018-4970-z

Lyu, Zongyang; Lee, Chanho; Wang, Shao-Yu; Fan, Xuesong; Yeh, Jien-Wei; Liaw, Peter K. (January 2019, Metallurgical and Materials Transactions A)

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