Microstructure and Properties of a Hot Rolled-Quenched Cu-Cr-Zr-Mg-Si Alloy

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• 作者：Chengdong Xia (12) xiacd309@csu.edu.cn
  Mingpu Wang (12) wangmp@csu.edu.cn
  Wan Zhang (1)
  Zhanyuan Kang (3)
  Yanlin Jia (1)
  Rui Zhang (1)
  Hongchun Yu (1)
  Genying Xu (1)
• 关键词：Cu ; Cr ; Zr ; Mg ; Si alloy – ; hardening – ; high conductivity – ; high strength – ; hot rolling ; quenching – ; precipitation
• 刊名：Journal of Materials Engineering and Performance
• 出版年：2012
• 出版时间：August 2012
• 年：2012
• 卷：21
• 期：8
• 页码：1800-1805
• 全文大小：329.8 KB
• 参考文献：1. Q. Liu, X. Zhang, Y. Ge, J. Wang, and J.Z. Cui, Effect of Processing and Heat Treatment on Behavior of Cu-Cr-Zr Alloys to Railway Contact Wire, Metall. Mater. Trans. A, 2006, 37(11), p 3233–3238
  2. J.H. Su, H.J. Li, Q.M. Dong, P. Liu, and B.X. Kang, Prediction and Analysis of the Aging Properties of Rapidly Solidified Cu-Cr-Sn-Zn Alloy Through Neural Network, J. Mater. Eng. Perform., 2005, 14(3), p 363–366
  3. Z. Li, Z.Y. Pan, Y.Y. Zhao, and Z. Xiao, Microstructure and Properties of High Conductivity, Super High Strength Cu-8.0Ni-1.8Si-0.6Sn-0.15Mg Alloy, J. Mater. Res., 2009, 24(6), p 2123–2128
  4. P. Liu, B.X. Kang, X.G. Cao, J.L. Huang, and H.C. Gu, Strengthening Mechanisms in a Rapidly Solidified and Aged Cu-Cr Alloy, J. Mater. Sci., 2000, 35(7), p 1691–1694
  5. N. Gao, T. Tiainen, Y. Ji, and L. Laakso, Control of Microstructures and Properties of a Phosphorus-Containing Cu-0.6 wt.% Cr Alloy Through Precipitation Treatment, J. Mater. Eng. Perform., 2000, 9(6), p 623–629
  6. I.S. Batra, G.K. Dey, U.D. Kulkarni, and S. Banerjee, Microstructure and Properties of a Cu-Cr-Zr Alloy, J. Nucl. Mater., 2001, 299(2), p 91–100
  7. N. Gao, T. Tiainen, E. Huttunen-Saarivirta, and Y. Ji, Influence of Thermomechanical Processing on the Microstructure and Properties of a Cu-Cr-P Alloy, J. Mater. Eng. Perform., 2002, 11(4), p 376–383
  8. J.H. Su, Q.M. Dong, P. Liu, H.J. Li, and B.X. Kang, Research on Aging Precipitation in a Cu-Cr-Zr-Mg Alloy, Mater. Sci. Eng. A, 2005, 392(1–2), p 422–426
  9. J.H. Su, P. Liu, Q.M. Dong, H.J. Li, F.Z. Ren, and B.H. Tian, Recrystallization and Precipitation Behavior of Cu-Cr-Zr Alloy, J. Mater. Eng. Perform., 2007, 16(4), p 490–493
  10. C.D. Xia, M.P. Wang, G.Y. Xu, W. Zhang, Y.L. Jia, and H.C. Yu, Microstructure and Properties of Cu-Cr Alloys Prepared by a Shortened Process and a Conventional Process, Adv. Mater. Res., 2011, 199–200, p 1890–1895
  11. M. Chemingui, M. Khitouni, K. Jozwiak, G. Mesmacque, and A. Kolsi, Characterization of the Mechanical Properties Changes in an Al-Zn-Mg Alloy After a Two-Step Ageing Treatment at 70 and 135 掳C, Mater. Des., 2010, 31(6), p 3134–3139
  12. H.J. Ryu, H.K. Baik, and S.H. Hong, Effect of Thermomechanical Treatments on Microstructure and Properties of Cu-Base Leadframe Alloy, J. Mater. Sci., 2000, 35(14), p 3641–3646
  13. B. Hutchinson, The Effect of Alloying Additions on the Recrystallisation Behaviour of Copper—A Literature Review, Swedish Institute of Metals Research Report, No. IM-2003, 1985
  14. Z. Rdzawski and J. Stobrawa, Thermomechanical Processing of Cu-Ni-Si-Cr-Mg Alloy, Mater. Sci. Technol., 1993, 9(2), p 142–149
  15. T. Fujii, H. Nakazawa, M. Kato, and U. Dahmen, Crystallography and Morphology of Nanosized Cr Particles in a Cu-0.2% Cr Alloy, Acta Mater., 2000, 48(5), p 1033–1045
  16. Y. Jin, K. Adachi, T. Takeuchi, and H.G. Suzuki, Correlation Between the Electrical Conductivity and Aging Treatment for a Cu-15 wt.% Cr Alloy Composite Formed In Situ, Mater. Lett., 1997, 32(5–6), p 307–311
  17. D.L. Zhang, K. Mihara, S. Tsubokawa, and H.G. Suzuki, Precipitation Characteristics of Cu-15Cr-0.15Zr In Situ Composite, Mater. Sci. Technol, 2000, 16(4), p 357–363
  18. C. Watanabe, R. Monzen, and K. Tazaki, Mechanical Properties of Cu-Cr System Alloys With and Without Zr and Ag, J. Mater. Sci., 2008, 43(3), p 813–819
  19. M.T. Jovanovic and V. Rajkovic, High Electrical Conductivity Cu-Based Alloys, Metalurgija J. Metall., 2009, 15(2), p 125–133
• 作者单位：1. School of Materials Science and Engineering, Central South University, Changsha, 410083 People鈥檚 Republic of China2. Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Changsha, 410083 People鈥檚 Republic of China3. Department of Dermatology, Aarhus University Hospital, 8000 Aarhus C, Denmark
• ISSN：1544-1024

文摘

The microstructure and properties of a hot rolled-quenched Cu-Cr-Zr-Mg-Si alloy were investigated by transmission electron microscopy observations, micro-hardness and tensile strength testing, and electrical conductivity measurement. The results show that the hot rolling-quenching (HR-Q) process and subsequent thermomechanical treatments are successfully developed to manufacture Cu-Cr-Zr-Mg-Si alloy strips. Solution treatment can be finished during the HR-Q process, and good combinations of strength, conductivity, and softening resistance are obtained for the thermomechanically treated strips. Ordered fcc structure precipitates which exhibit a cube-on-cube orientation relationship with the matrix are responsible for the improvements of properties. The properties of hot rolled-quenched Cu-Cr-Zr-Mg-Si alloy strips can be further improved by two-step rolling and aging process. The improvements of properties are attributed to the interactions of precipitation strengthening and strain hardening.