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Analysis of Phases and Their Role in Strengthening of Cu-Cr-Zr-Ti Alloy

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Abstract

In the present investigation, mechanical properties and microstructure of the Cu-Cr-Zr-Ti alloy were characterized by tensile testing, hardness measurement, and transmission electron microscopy (TEM) in different heat treatment conditions. TEM studies confirmed the presence of four phases in the solution-treated condition namely: copper matrix, spherical chromium-rich, TiS2, and ZrS2 particles. Aging in the temperature range of 400-600 °C has led to significant change in strength. Samples aged at 500 °C for 2 h showed maximum ultimate tensile strength and yield strength of 330 and 212 MPa, respectively, with ductility of 23%. The phase responsible for high strength after aging at 500 °C was identified as fine bcc chromium precipitates with average size of 3.0 ± 1.0 nm.

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References

  1. J.B. Correia, H.A. Davies, and C.M. Sellars, Strengthening in Rapidly Solidified Age Hardened Cu-Cr and Cu- Cr-Zr Alloys, Acta Mater., 1997, 45, p 177–190

    Article  Google Scholar 

  2. M. Kanno, Effect of a Small Addition of Zirconium on Hot Ductility of a Cu-Cr Alloy, Z. Metall., 1988, 79, p 684–688

    Google Scholar 

  3. R.D.K. Misra, V.S. Prasad, and P.R. Rao, Dynamic Embrittlement in An Age-Hardenable Copper-Chromium Alloy, Scripta Mater., 1996, 35, p 129–133

    Article  Google Scholar 

  4. R.K. Misra and V. Prasad, On the Dynamic Embrittlement of Copper-Chromium Alloys by Sulphur, J. Mater. Sci., 2000, 35, p 3321–3325

    Article  Google Scholar 

  5. H. Nathani and R. Misra, Characteristics of Intermediate Temperature Dynamic Embrittlement of Age Hardenable Copper-Chromium Alloys, Mater. Sci. Technol., 2004, 20, p 546–549

    Article  Google Scholar 

  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, p 91–100

    Article  Google Scholar 

  7. H. Fuxiang, M. Jusheng, N. Honglong, G. Zhiting, L. Chao, G. Shumei, Y. Xuetao, W. Tao, L. Hong, and L. Huafen, Analysis of Phases in a Cu-Cr-Zr Alloy, Scripta Mater., 2003, 48, p 97–102

    Article  Google Scholar 

  8. M. Hatakeyama, T. Toyama, Y. Nagai, M. Hasegawa, M. Eldrup, and B.N. Singh, Nanostructural Evolution of Cr-Rich Precipitates in a Cu-Cr-Zr Alloy During Heat Treatment Studied by 3 Dimensional Atom Probe, Mater. Trans., 2008, 49, p 518–521

    Article  Google Scholar 

  9. J. Su, P. Liu, H. Li, F. Ren, and Q. Dong, Phase Transformation in Cu-Cr-Zr-Mg Alloy, Mater. Lett., 2007, 61, p 4963–4966

    Article  Google Scholar 

  10. P. Liu, B.X. Kang, X.G. Cao, J.L. Huang, B. Yen, and H.C. Gu, Aging Precipitation and Recrystallization of Rapidly Solidified Cu-Cr-Zr-Mg Alloy, Mater. Sci. Eng A., 1999, 265, p 262–267

    Article  Google Scholar 

  11. S.G. Mu, F.A. Guo, Y.Q. Tang, X.M. Cao, and M.T. Tang, Study on Microstructure and Properties of Aged Cu-Cr-Zr-Mg-RE Alloy, Mater. Sci. Eng. A, 2008, 475, p 235–240

    Article  Google Scholar 

  12. N.Y. Tang, D.M.R. Taplin, and G.L. Dunlop, Precipitation and Aging in High-Conductivity Cu-Cr Alloys with Additions of Zirconium and Magnesium, Mater. Sci. Technol., 1985, 1, p 270–275

    Article  Google Scholar 

  13. C. Xia, M. Wang, W. Zhang, Z. Kang, Y. Jia, and R. Zhang, Microstructure and Properties of a Hot Rolled-Quenched Cu-Cr-Zr-Mg-Si Alloy, J. Mater. Eng. Perform., 2012, 21, p 1800–1805

    Article  Google Scholar 

  14. G. Li, B.G. Thomas, and J.F. Stubbins, Modeling Creep and Fatigue of Copper Alloys, Metall. Mater. Trans. A, 2000, 31, p 2491–2502

    Article  Google Scholar 

  15. S.C. Krishna, K.V. Radhika, K. Thomas Tharian, G.S. Rao, M. Swathi Kiranmayee, and B. Pant, Effect of Simulated Brazing Cycle on the Microstructure and Mechanical Properties of Cu-Cr-Zr-Ti Alloy, Mater. Sci. Forum., 2012, 710, p 626–631

    Article  Google Scholar 

  16. S.C. Krishna, K.V. Radhika, K.T. Tharian, M. Swathi Kiranmayee, G.S. Rao, A.K. Jha, and M.G. Koshy, Dynamic Embrittlement in Cu-Cr-Zr-Ti Alloy: Evidence of Intergranular Segregation of Sulphur, J. Mater. Eng. Perform., 2013, 22, p 2331–2336

    Article  Google Scholar 

  17. S.C. Krishna, N. Supriya, A.K. Jha, B. Pant, S.C. Sharma, K.M. George, Thermal Conductivity of Cu-Cr-Zr-Ti Alloy in the Temperature Range of 300-873 K. ISRN Metall., 2012, Article ID 580659, 2012. doi:10.5402/2012/580659

  18. E. Kirner, D. Thelemann, and D. Wolf, Development Status of the Vulcain Thrust Chamber, Acta Astronaut., 1993, 29, p 271–282

    Article  Google Scholar 

  19. T. Gladman, Precipitation Hardening in Metals, Mater. Sci. Technol., 1998, 15, p 30–36

    Article  Google Scholar 

  20. A.J. Ardell, Precipitation Hardening, Metall. Trans. A, 1985, 16, p 2131–2165

    Article  Google Scholar 

  21. S.C. Krishna, K. Thomas Tharian, B. Pant, and R.S. Kottada, Age-Hardening Characteristics of Cu-3Ag-0.5Zr Alloy, Mater. Sci. Forum., 2012, 710, p 563–568

    Article  Google Scholar 

  22. Z. Guo and W. Sha, Quantification of Precipitation Hardening and Evolution of Precipitates, Mater. Trans., 2002, 43, p 1273–1282

    Article  Google Scholar 

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Acknowledgments

The authors would like to thank Shri M. Chandra Dathan Director, VSSC for his permission to publish this work.

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Authors and Affiliations

  1. Materials and Mechanical Entity, Vikram Sarabhai Space Centre, Trivandrum, 695022, India

    S. Chenna Krishna, G. Sudarsana Rao, Abhay K. Jha, Bhanu Pant & Koshy M. George

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  1. S. Chenna Krishna
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  2. G. Sudarsana Rao
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  3. Abhay K. Jha
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  5. Koshy M. George
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Correspondence to S. Chenna Krishna.

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Krishna, S.C., Rao, G.S., Jha, A.K. et al. Analysis of Phases and Their Role in Strengthening of Cu-Cr-Zr-Ti Alloy. J. of Materi Eng and Perform 24, 2341–2345 (2015). https://doi.org/10.1007/s11665-015-1516-z

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  • DOI: https://doi.org/10.1007/s11665-015-1516-z

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