Superior strength-ductility synergy by hetero-structuring high manganese steel [PDF]
Materials Research Letters, 2020 Lacking of forest hardening makes low ductility in steels long challenge particularly at high yield strength. Here, we report to make good use of hetero-structuring for superior strength-ductility synergy in high manganese steel.
Xing Fang +8 more
doaj +4 more sources
Tailoring size and fraction of coherent L12 nanoprecipitates to achieve strong hardening in medium entropy alloys with heterogeneous grain structures [PDF]
Journal of Materials Research and TechnologyHeterogeneous grain structures with coherent L12 nanoprecipitates were constructed in a medium entropy alloy with chemical composition of Co34.5Cr32Ni27.5Al3Ti3 (at. %).
Guohao Qin +4 more
doaj +4 more sources
Atomistic tensile deformation mechanisms in a CrCoNi medium-entropy alloy with gradient nano-grained structure at cryogenic temperature [PDF]
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
doaj +7 more sources
Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures [PDF]
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
doaj +2 more sources
Heterostructure enables new deformation mechanisms to enhance strength and work hardening [PDF]
Materials Research LettersReflection of geometrically necessary dislocations (GNDs) has been reported effective in increasing strength and ductility of dual-phase alloys. However, this mechanism is rarely observed in conventional single-phase alloys. Here we report the activation
Bo Gao +8 more
doaj +2 more sources
Design of tri-phase lamellar architectures for enhanced ductility in ultra-strong steel [PDF]
Materials & DesignAchieving exceptional ductility in ultra-high strength steels has long been a formidable challenge, particularly when the yield strength reaches 2.0 GPa.
Chao Ding +7 more
doaj +2 more sources
Simultaneous Improvement of Yield Strength and Ductility at Cryogenic Temperature by Gradient Structure in 304 Stainless Steel [PDF]
Nanomaterials, 2021 The tensile properties and the corresponding deformation mechanism of the graded 304 stainless steel (ss) at both room and cryogenic temperatures were investigated and compared with those of the coarse-grained (CGed) 304 ss.
Shuang Qin +3 more
doaj +4 more sources
Designing the heterogeneous microstructure via a direct warm rolling process to synergistically enhance the strength-ductility in a medium Mn steel [PDF]
Materials & DesignThis work introduced a facile method for fabricating heterostructures in a medium Mn steel via a direct warm rolling process. The heavy warm rolling promoted the transformation of metastable austenite (∼12.2 vol%) into hard domain α’ martensite, which ...
Qizhe Ye +5 more
doaj +2 more sources
Simultaneously improved strength and ductility yet strain-hardenable 316L stainless steel by sigma phase and hetero-structuring [PDF]
Materials & DesignIn this study, we produced both homogeneous and heterogeneous-structured 316L austenitic stainless steels (SSs), each exhibiting comparable levels of yield strength (YS).
Young-Kyun Kim +4 more
doaj +2 more sources
Making high primary α phase content titanium alloy exceptional strength and ductility by designing the heterogeneous structure [PDF]
Journal of Materials Research and TechnologyAs a challenge to avoid the strength-ductility trade-off for Ti alloys, strength and ductility are contradictory, especially at a high content of primary α phase.
Jifei Hu +6 more
doaj +2 more sources