Enhanced strength-ductility synergy in a gradient hetero-structured CrCoNi medium-entropy alloy [PDF]
Journal of Materials Research and TechnologyA CrCoNi medium-entropy alloy (MEA) with gradient hetero-structure (GHS) composing of gradient nanostructured surface layer and hetero-structured matrix was prepared via a two-step process: pre-cold rolling (CR) deformation and subsequent annealing ...
Hangqi Feng +9 more
doaj +4 more sources
Achieving high strength-ductility of an Al–Mg–Si–Cu alloy via heterostructure coupling with pre-aging precipitation [PDF]
Journal of Materials Research and TechnologyThe heterostructured Al–Mg–Si–Cu alloy profile modified by TiB2–TiC particles was prepared by conventional extrusion and solution treatment, and the coupling effect of the heterostructure and the precipitates on the mechanical properties of the alloy ...
Shibiao Zhong +6 more
doaj +2 more sources
Hetero-deformation-induced (HDI) plasticity induces simultaneous increase in both yield strength and ductility in a Fe50Mn30Co10Cr10 high-entropy alloy [PDF]
, 2021 Low yield strength is the bottleneck of the face-centered cubic-structured high-entropy alloys (HEAs). Here, the strategy of hetero-deformation-induced (HDI) plasticity is applied by hetero-structuring to induce strengthening and strain hardening for a ...
Liu D(刘动) +5 more
core +3 more sources
Heterostructuring an equiatomic CoNiFe medium-entropy alloy for enhanced yield strength and ductility synergy [PDF]
, 2022 High-/medium-entropy alloys (H/MEAs) of face-centered-cubic-structured single phase usually suffer from a glaring drawback of low yield strength. Even worse, the trade-off emerges frustratingly between strength and ductility as strength increases.
Ding, Xin-Xin +8 more
core +4 more sources
Gradient and lamellar heterostructures for superior mechanical properties [PDF]
, 2021 Heterostructured (HS) materials are a novel class of materials with mechanical properties that are superior over their conventional homogeneous counterparts. They are composed of HS zones with a dramatic difference in mechanical behaviors, which produces
Zhu Yuntian, 武晓雷
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Heterogeneous Microstructure and Tensile Properties of Fe50Mn30Co10Cr10 Metastable High-Entropy Alloy. [PDF]
Materials (Basel)Face-centered cubic (FCC)-structured high-entropy alloys (HEAs) are facing a major challenge due to a trade-off between strength and ductility. In this paper, we systematically investigated the microstructural evolution and tensile properties of ...
Sun X +6 more
europepmc +2 more sources
Designing structures with combined gradients of grain size and precipitation in high entropy alloys for simultaneous improvement of strength and ductility [PDF]
, 2022 Suppressing the early strain localization at the nanostructured topmost layer is crucial for achieving better tensile ductility in the gradient structure.
Yang MX(杨沐鑫) +6 more
core +3 more sources
Heterostructured Metallic Materials: Plastic Deformation and Strain Hardening [PDF]
, 2022 Strong and tough metallic materials are desired for light-weight structural applications in transportation and aerospace industries. Recently, heterostructures have been found to possess unprecedented strength-and-ductility synergy, which is until now ...
Wu Xiaolei, Zhu Yuntian
core +1 more source
Twin density gradient induces enhanced yield strength-and-ductility synergy in a S31254 super austenitic stainless steel [PDF]
, 2022 Gradient structure (GS), as a typical heterostructure, is arousing great interest for an improved synergy between the strength and ductility which are mutually conflicting.
王晶 +6 more
core +3 more sources
Hetero-deformation-induced stress in additively manufactured 316L stainless steel
Materials Research Letters, 2020 Heterogeneous cellular structure combined with bimodal grain structure contributed to the high hetero-deformation-induced (HDI) stress in selective laser melted 316L stainless steel (SLMed 316L SS) and high grain boundary density at molten pool ...
Decheng Kong +5 more
doaj +1 more source