Results 11 to 20 of about 372 (177)

Superior strength–ductility combination in Al alloys via dislocation gradient structure

Materials Research Letters, 2023
The precipitation hardening is widely applied to strengthen Al alloys. Here, we report an alternative way to achieve high-strength Al alloys via forming the dislocation gradient through pre-torsion.
Feng Wang, Yue Li, Xinren Chen, Huan Zhao, Khurram Yaqoob, Yong Du, Zhangwei Wang, Min Song   +7 more
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Strain hardening behavior and microstructure evolution of gradient-structured Cu-Al alloys with low stack fault energy

Journal of Materials Research and Technology, 2022
Nanocrystallization can significantly improve the strength and hardness of metallic materials, but usually sacrifice ductility due to low work hardening capability. Heterostructured materials are an emerging class of materials with superior performances,
Huan Liu, Bo Gao, Yi Yang, Mengning Xu, Xingfu Li, Cong Li, Hongjiang Pan, Jingran Yang, Hao Zhou, Xinkun Zhu, Yuntian Zhu   +10 more
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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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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, Chaofang Dong, Xiaoqing Ni, Zhang Liang, Cheng Man, Xiaogang Li   +5 more
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Role of synergistic hardening and damage evolution on the stretchability of Al1050/steel/Al1050 sheets

Journal of Materials Research and Technology, 2022
The configurational design of heterostructures has received considerable attention to achieve a superior combination of strength and ductility. Although heterostructuring for enhanced tensile properties has been widely analyzed, studies on the effect of ...
Rae Eon Kim, Gang Hee Gu, Hyeonseok Kwon, Soung Yeoul Ahn, Jihye Kwon, Jeong Ah Lee, Yeon Taek Choi, Min Hong Seo, Hyoung Seop Kim   +8 more
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Enhanced strength and ductility of the low-carbon steel with heterogeneous lamellar dual-phase structure produced by cyclic intercritical rolling

Journal of Materials Research and Technology, 2023
Steels with outstanding mechanical properties are desired in industrial applications. Martensitic structure significantly increases the strength in low-carbon steels, but usually sacrifices their ductility. In order to improve the combination of strength
Bo Gao, Li Wang, Yi Liu, Junliang Liu, Lirong Xiao, Yudong Sui, Wenwen Sun, Xuefei Chen, Hao Zhou   +8 more
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Strength–ductility trade-off in TiB-TC4 composites with a pseudo core–shell structure

Journal of Materials Research and Technology, 2023
Heterogeneous structure is practical to improve the strain hardening abilities of materials due to the effect of hetero-deformation induced hardening, especially of composites.
Yuanhao Sun, Zhixi Zhu, Qiang Wang, Xiaotong Jia, Wenjun Li, Zhaohui Zhang, Xingwang Cheng   +6 more
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Enhanced strength-ductility synergy in a gradient hetero-structured CrCoNi medium-entropy alloy

Journal of Materials Research and Technology
A 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, Hangzhou Zhang, Zhenghong He, Lingling Zhou, Zihan Zhang, Muxin Yang, Weijie Li, Xiaolei Wu, Fuping Yuan, Ying Li   +9 more
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Superior strength-ductility synergy by hetero-structuring high manganese steel

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, Qiqi Xue, Kaiyuan Yu, Runguang Li, Daqiang Jiang, Lei Ge, Yang Ren, Changfeng Chen, Xiaolei Wu   +8 more
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Improving strain hardening capacity of high-strength Ti–6Al–4V alloy by a dual harmonic structure

Journal of Materials Research and Technology, 2023
By TiH2/Al60V40 powder processing, in-situ dehydrogenation, and powder compact extrusion, we successfully fabricate a Ti–6Al–4V (wt.%) alloy with a dual harmonic structure.
Yifei Luo, Yuehuang Xie, Zhen Zhang, Jiamiao Liang, Deliang Zhang   +4 more
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