Results 1 to 10 of about 157 (117)

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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Revealing Hetero-Deformation Induced (HDI) Hardening and Dislocation Activity in a Dual-Heterostructure Magnesium Matrix Composite

Journal of Magnesium and Alloys
Integrating 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, Ran Ni, Lingbao Ren, Peng Xiao, Ying Zeng, Dongdi Yin, Hajo Dieringa, Yuanding Huang, Gaofeng Quan, Wei Feng   +9 more
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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, R. Lin Peng, X. Zhao, L. Zuo, N. Jia   +4 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

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, Guowei Wang, Falin Yang, Huande Chen, Ningning Liang, Han Ma, Jinghua Jiang, Xiaolong Ma   +7 more
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γ′′ Phase transformation, precipitation hardening, hetero-deformation induced hardening and deformation mechanisms in a Nb-alloyed medium-entropy alloy

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, Xian Luo, Yafeng Wang, Bin Huang, Zhijun Wang, Yanqing Yang   +5 more
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Extraordinary tensile properties of titanium alloy with heterogeneous phase-distribution based on hetero-deformation induced hardening

Materials Research Letters, 2020
A heterogeneous (α + β) titanium alloy with extraordinary tensile properties was prepared. The heterogeneous microstructures, consisting of soft βfiber and hard (α + β)matrix, were achieved by controlling the distribution of β-stabilizing element.
Yuankui Cao, Weidong Zhang, Bin Liu, Min Song, Yong Liu   +4 more
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Simultaneous Improvement of Yield Strength and Ductility at Cryogenic Temperature by Gradient Structure in 304 Stainless Steel. [PDF]

Nanomaterials (Basel), 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.
Qin S, Yang M, Yuan F, Wu X.
europepmc   +2 more sources

Dislocation array reflection enhances strain hardening of a dual-phase heterostructured high-entropy alloy

Materials Research Letters, 2023
Piling-ups of geometrically necessary dislocation (GND) arrays against interfaces are known to produce hetero-deformation induced (HDI) strengthening and strain hardening to enhance the strength and ductility of heterostructured materials. Here we report
Yi Liu, Mengning Xu, Lirong Xiao, Xuefei Chen, Zhaohua Hu, Bo Gao, Ningning Liang, Yuntian Zhu, Yang Cao, Hao Zhou   +9 more
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Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures

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, Peijian Shi, Mingyang Wang, Yinpan Yang, Yan Wang, Yiqi Li, Yuebo Wen, Weili Ren, Na Min, Yan Chen, Yifeng Guo, Zhe Shen, Tianxiang Zheng, Ningning Liang, Wenjun Lu, Peter K. Liaw, Yunbo Zhong, Yuntian Zhu   +17 more
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Investigation on strain localization and hardening of dual-phase steel by hetero-deformation induced stress

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, Nan Wang, Jing Li, Yongnan Chen, Gang Wu, Xi Chen, Qinyang Zhao, Jinheng Luo   +7 more
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