Aging Behavior of Cu-Ni-Si Alloy Processed by High-Pressure Torsion

被引：9
|
作者：
Matsunaga, Hirotaka [1 ]
Horita, Zenji [1 ]
Imamura, Kazutaka [2 ]
Kiss, Takanobu [2 ]
Sauvage, Xavier [3 ]
机构：
[1] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Fukuoka 8190395, Japan
[2] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Dept Elect Engn, Fukuoka 8190395, Japan
[3] Univ Rouen, Grp Phys Mat, Fac Sci, CNRS UMR 6634, F-76801 St Etienne, France
来源：
NANOMATERIALS BY SEVERE PLASTIC DEFORMATION: NANOSPD5, PTS 1 AND 2 | 2011年 / 667-669卷
关键词：
high-pressure torsion; ultrafine grain; Cu-Ni-Si; electrical conductivity; 3DAP;
D O I：
10.4028/www.scientific.net/MSF.667-669.307
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An age-hardenable Cu-2.9%Ni-0.6%Si alloy was subjected to high-pressure torsion. Aging behavior was investigated in terms of hardness, electrical conductivity and microstructural features. Transmission electron microscopy showed that the grain size is refined to similar to 150 nm and the Vickers microhardness was significantly increased through the HPT process. Aging treatment of the HPT-processed alloy led to a further increase in the hardness. Electrical conductivity is also improved with the aging treatment. It was confirmed that the simultaneous strengthening by grain refinement and fine precipitation is achieved while maintaining high electrical conductivity. Three dimensional atom probe analysis revealed that fine precipitates with sizes of similar to 20 nm or smaller were formed in the Cu matrix and some particles consist of Ni and Si with no appreciable amount of Cu.
引用
收藏
页码：307 / +
页数：2
相关论文
共 50 条
  • [31] High-cycle fatigue behavior of Zn-22% Al alloy processed by high-pressure torsion
    Choi, In-Chul
    Yoo, Byung-Gil
    Kraft, Oliver
    Schwaiger, Ruth
    Seok, Moo-Young
    Kawasaki, Megumi
    Langdon, Terence G.
    Jang, Jae-Il
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 618 : 37 - 40
  • [32] Compared microstructure and properties of an AlZnMgCu alloy processed by high pressure sliding and high-pressure torsion
    Duchaussoy, Amandine
    Sauvage, Xavier
    Deschamps, Alexis
    De Geuser, Frederic
    Renou, Gilles
    Horita, Zenji
    JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 942
  • [33] Effect of Annealing on Microstructure and Tensile Behavior of CoCrNi Medium Entropy Alloy Processed by High-Pressure Torsion
    Sathiyamoorthi, Praveen
    Bae, Jae Wung
    Asghari-Rad, Peyman
    Park, Jeong Min
    Kim, Jung Gi
    Kim, Hyoung Seop
    ENTROPY, 2018, 20 (11)
  • [34] Evidence for a phase transition in an AlCrFe2Ni2 high entropy alloy processed by high-pressure torsion
    Liu, Xiaotao
    Ding, Hua
    Huang, Yi
    Bai, Xiao
    Zhang, Qian
    Zhang, Haitao
    Langdon, Terence G.
    Cui, Jianzhong
    JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 867
  • [35] Microstructures, strengthening mechanisms and fracture behavior of Cu-Ag alloys processed by high-pressure torsion
    Tian, Y. Z.
    Li, J. J.
    Zhang, P.
    Wu, S. D.
    Zhang, Z. F.
    Kawasaki, M.
    Langdon, T. G.
    ACTA MATERIALIA, 2012, 60 (01) : 269 - 281
  • [36] Strengthening of A2024 alloy by high-pressure torsion and subsequent aging
    Mohamed, Intan Fadhlina
    Masuda, Takahiro
    Lee, Seungwon
    Edalati, Kaveh
    Horita, Zenji
    Hirosawa, Shoichi
    Matsuda, Kenji
    Terada, Daisuke
    Omar, Mohd Zaidi
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 704 : 112 - 118
  • [37] Evidence for superplasticity in a CoCrFeNiMn high-entropy alloy processed by high-pressure torsion
    Shahmir, Hamed
    He, Junyang
    Lu, Zhaoping
    Kawasaki, Megumi
    Langdon, Terence G.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 685 : 342 - 348
  • [38] Effect of dynamical heating on microstructure and microhardness of Ni processed by high-pressure torsion
    Yang, Z. Q.
    MATERIALS LETTERS, 2006, 60 (29-30) : 3846 - 3850
  • [39] Developing grain refinement and superplasticity in a magnesium alloy processed by high-pressure torsion
    Kai, Masaaki
    Horita, Zenji
    Langdon, Terence G.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 488 (1-2): : 117 - 124
  • [40] Grain refinement and superplastic flow in an aluminum alloy processed by high-pressure torsion
    Dobatkin, SV
    Bastarache, EN
    Sakai, G
    Fujita, T
    Horita, Z
    Langdon, TG
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 408 (1-2): : 141 - 146
12345