论文摘要
This work demonstrates the effectiveness of a cryogenic torsional pre-straining for significantly improving the cryogenic strength of an equiatomic CrCoNi alloy. The origin of this phenomenon is elucidated by various microstructural characterization tools, which shows that the sequential torsion and tension tests lead to the observed hierarchical microstructure through the activation of different twinning systems and stacking faults. This gives rise to the significant increase in the yield strength from 600 MPa to 1215 MPa,while the fracture strain changes from 68% to 48%. The current study reveals that the incorporation of nanotwins architecture by shear deformation may constitute a viable strategy to tune the mechanical performance and, in particular, to dramatically increase the strength while keeping a good ductility.
论文目录
文章来源
类型: 期刊论文
作者: Bin Gan,Jeffrey M.Wheeler,Zhongnan Bi,Lin Liu,Jun Zhang,Hengzhi Fu
来源: Journal of Materials Science & Technology 2019年06期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 金属学及金属工艺
单位: School of Materials Science and Engineering,Northwestern Polytechnical University,Laboratory for Nanometallurgy,Department of Materials Science,ETH Zürich,Central Iron and Steel Research Institute
基金: the financial support of the project from the National Natural Science Foundation of China(No.51601147),the Natural Science Foundation of Shaanxi Province(No.2017JQ5010),“the Fundamental Research Funds for the Central Universities”(No.3102016OQD048,3102017JC11001,3102017JC01003)
分类号: TG139
页码: 957-961
总页数: 5
文件大小: 1120K
下载量: 14
相关论文文献
- [1].3D hierarchical NiS_2/MoS_2 nanostructures on CFP with enhanced electrocatalytic activity for hydrogen evolution reaction[J]. Journal of Materials Science & Technology 2020(04)
- [2].Highly active N,O-doped hierarchical porous carbons for high-energy supercapacitors[J]. Chinese Chemical Letters 2020(05)
- [3].Eclipsing binary XZ CMi in a hierarchical quadruple system[J]. Research in Astronomy and Astrophysics 2020(08)
- [4].Busting the efficiency of SAPO-34 catalysts for the methanol-to-olefin conversion by post-synthesis methods[J]. Chinese Journal of Chemical Engineering 2020(08)
- [5].Synthesis of hierarchical shell-core SnO_2 microspheres and their gas sensing properties[J]. Chinese Chemical Letters 2020(08)
- [6].The synthetic strategies of hierarchical TS-1 zeolites for the oxidative desulfurization reactions[J]. Chinese Journal of Chemical Engineering 2020(09)
- [7].One-step synthesis of biomass derived O, N-codoped hierarchical porous carbon with high surface area for supercapacitors[J]. Chinese Chemical Letters 2020(09)
- [8].Facile synthesis of hierarchical Ni_3Se_2 nanodendrite arrays for supercapacitors[J]. Journal of Materials Science & Technology 2020(19)
- [9].Preparation and optical properties of three-dimensional navel-like Bi_2WO_6 hierarchical microspheres[J]. Chinese Chemical Letters 2019(03)
- [10].Improvement of low-temperature catalytic activity over hierarchical Fe-Beta catalysts for selective catalytic reduction of NO_x with NH_3[J]. Chinese Chemical Letters 2019(04)
- [11].Discrete decision model and multi-agent simulation of the Liang Zong two-chain hierarchical organization in a complex project[J]. Journal of Systems Engineering and Electronics 2018(02)
- [12].When hierarchical structure meets the solar cell[J]. Science Bulletin 2017(04)
- [13].Research progress of hierarchical division in nursing ladder management in China[J]. Chinese Nursing Research 2016(03)
- [14].Wettability regulated gram-negative bacterial adhesion on biomimetic hierarchical structures[J]. Chinese Chemical Letters 2017(04)
- [15].Pore-structure-mediated hierarchical SAPO-34:Facile synthesis,tunable nanostructure,and catalysis applications for the conversion of dimethyl ether into olefins[J]. Particuology 2013(04)
- [16].Effect of BNNTs/matrix interface tailoring on toughness and fracture morphology of hierarchical SiC_f/SiC composites[J]. Journal of Advanced Ceramics 2019(04)
- [17].High performance hybrid supercapacitor based on hierarchical MoS_2/Ni_3S_2 metal chalcogenide[J]. Chinese Chemical Letters 2019(05)
- [18].Fabrication and application of hierarchical mesoporous MoO_2/Mo_2C/C microspheres[J]. Journal of Energy Chemistry 2018(03)
- [19].A novel approach for synthesis of hierarchical mesoporous Nd_2O_3 nanomaterials[J]. Journal of Rare Earths 2017(07)
- [20].Preparation of chitosan/N-doped graphene natively grown on hierarchical porous carbon nanocomposite as a sensor platform for determination of tartrazine[J]. Chinese Chemical Letters 2017(07)
- [21].A Project of Sinosteel LIRR Gained International S&T Cooperation Special Funds[J]. China's Refractories 2014(02)
- [22].Static and dynamic design based on hierarchical optimization for materials and structure of porous metals[J]. Science China(Technological Sciences) 2012(10)
- [23].Hybrid MDP based integrated hierarchical Q-learning[J]. Science China(Information Sciences) 2011(11)
- [24].Synthesis and magnetic properties of CdS/α-Fe_2O_3 hierarchical nanostructures[J]. Science in China(Series G:Physics,Mechanics & Astronomy) 2009(07)
- [25].3D hierarchical microspheres constructed by ultrathin MoS_2-C nanosheets as high-performance anode material for sodium-ion batteries[J]. Journal of Energy Chemistry 2020(10)
- [26].Three-dimensional hierarchical CuO gas sensor modified by Au nanoparticles[J]. Journal of Semiconductors 2019(02)
- [27].Three-dimensional hierarchical MoS_2/CoS_2 heterostructure arrays for highly efficient electrocatalytic hydrogen evolution[J]. Green Energy & Environment 2017(02)
- [28].Location of Electric Vehicle Charging Station Based on Spatial Clustering and Multi-hierarchical Fuzzy Evaluation[J]. Transactions of Nanjing University of Aeronautics and Astronautics 2017(01)
- [29].A versatile solution-phase, precursor route to surface-mazelike hierarchical structures[J]. Science China Chemistry 2015(04)
- [30].Gold-catalytic green synthesis of Cu_2O/Au/CuO hierarchical nanostructure and application for CO gas sensor[J]. Chinese Science Bulletin 2014(01)