Results 1 to 10 of about 322 (128)
Hetero-Deformation Induced Hardening in a CoCrFeNiMn High-Entropy Alloy
Crystals, 2023 One of the most important issues in materials science is to overcome the strength–ductility trade-off in engineering alloys. The formation of heterogeneous and complex microstructures is a useful approach to achieving this purpose. In this investigation,
Hamed Shahmir +4 more
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Perspective on hetero-deformation induced (HDI) hardening and back stress [PDF]
Materials Research Letters, 2019 Heterostructured materials have been reported as a new class of materials with superior mechanical properties, which was attributed to the development of back stress.
Yuntian Zhu, Xiaolei Wu
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Materials & Design, 2023 In present work, a novel γ′′-strengthened Nb-alloyed medium-entropy alloy (MEA) was successfully fabricated and systematically investigated. Our results evidence that the γ′′ phase brings out significant precipitation hardening effect (∼10.2 %volume ...
Wenjie Lu +5 more
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Microstructure and deformation behavior of a novel steel rebar: Effect of the heterogeneous microstructure of soft ferrite and Hard bainite [PDF]
Journal of Materials Research and Technology, 2020 This study reports a detailed investigation of the deformation behavior and microstructural evolution of a novel ultra-low carbon Cr-Mo alloyed dual-phase steel rebar aimed for marine applications.
Dan Song +7 more
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Journal of Magnesium and AlloysIntegrating a heterogeneous structure can significantly enhance the strength-ductility synergy of composites. However, the relationship between hetero-deformation induced (HDI) strain hardening and dislocation activity caused by heterogeneous structures ...
Lingling Fan +9 more
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Tuning heterostructures with powder metallurgy for high synergistic strengthening and hetero-deformation induced hardening [PDF]
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2020 Abstract Heterogeneous-lamella-structured Fe-Cu composites were fabricated using powder metallurgy, displaying an inverse “banana” curve between the strength and ductility. The density of domain interfaces and the strength difference between hard and soft domains can be tuned independently, providing a promising way to further study the hetero ...
Y T Zhu, C C Koch, X L Wu
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Deformation incompatibility enables hetero-deformation induced strengthening in Ti/Nb laminates
Materials Research Letters, 2023 Deformation incompatibility in Ti/Nb laminates under uniaxial tension was revealed by in-situ neutron diffraction. During uniform deformation of the bulk laminates, the hard Nb constrained by the soft Ti showed moderate work hardening and only slightly ...
S. Jiang +4 more
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Journal of Materials Research and Technology, 2023 Strain hardening remains challenging for maintaining the plasticity of metals, especially those of high strength. The hetero-deformation induced (HDI) stress can effectively alleviate the problem, specifically with a large mechanical response mismatch ...
Zhen Zhang +7 more
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Frontiers in Materials, 2023 Large-scale molecular dynamics (MD) simulations have been utilized to reveal the atomistic deformation mechanisms of a CrCoNi medium-entropy alloy (MEA) with gradient nano-grained (GNG) structure in the present study. Strong strain hardening was observed
Yuhao Tao +3 more
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Materials Research Letters, 2022 Eutectic high-entropy alloys (EHEAs) feature attractive strength–ductility balance at both ambient and cryogenic temperatures. Nevertheless, microstructural origins underpinning these balanced mechanical properties remain elusive.
Yi Li +17 more
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