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Failure Analysis of Cast Tubular Specimens of Al–5Zn–1Mg While Processing at Room Temperature by Equal Channel Angular Pressing (ECAP)

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Abstract

The ECAP process is a promising technique for imparting large plastic deformation and breaking down the ingot cast structure without a resultant decrease in cross-sectional area. In the present study, the suitability of this technique for processing cast Al–5Zn–1Mg tubular specimens at room temperature has been investigated. Tubular specimens were extruded through an ECAP die with an angle of 150° between the two intersecting channels without a back pressure. Sand was used as a mandrel during pressing. The tubular specimens failed miserably in the first pass itself. A failure analysis was carried out using SEM, and cause for failure was determined.

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References

  1. I. Yoshinori, F. Minoru, H. Zenji, N. Minoru, L. Terence, Structural characteristics of ultrafine-grained aluminum produced using equal-channel angular pressing. Metall. Mater. Trans. A 29, 2245–2252 (1998)

    Article  Google Scholar 

  2. R.Z. Valiev, T.G. Langdon, Principles of equal-channel angular pressing as a processing tool for grain refinement. Prog. Mater. Sci. 51, 881–981 (2006)

    Article  Google Scholar 

  3. V.M. Segal, Materials processing by simple shear. Mater. Sci. Eng. 197, 157–164 (1995)

    Article  Google Scholar 

  4. Y.Y. Wang, P.L. Sun, P.W. Kao, C.P. Chang, Effect of deformation temperature on the microstructure developed in commercial purity aluminum processed by equal channel angular extrusion. Scr. Mater. 50, 613–617 (2004)

    Article  Google Scholar 

  5. V.V. Stolyarov, V.V. Latysh, V.A. Shundalov, D.A. Salimonenko, R.K. Islamgaliev, R.Z. Valiev, Influence of severe plastic deformation on aging effect of Al–Zn–Cu–Zr alloy. Mater Sci. Eng. A 339, 234–236 (1997)

    Google Scholar 

  6. Y. Iwahashi, Z. Horita, M. Nemoto, T.G. Langdon, An investigation of microstructural evolution during equal-channel angular pressing. Metall. Mater. Eng. A 45, 4733–4741 (1997)

    Google Scholar 

  7. N. Kiyotaka, Z. Horita, M. Nemoto, T.G. Langdon, Development of a multi-pass facility for equal-channel angular pressing to high total strains. Mater. Sci. Eng. A 281(1–2), 82–87 (2000)

    Google Scholar 

  8. I.V. Alexandrov, G.I. Raab, L.O. Shestakova, R.Z. Valiev, R.J. Dowding, in ed. by M.S. Greenfield, J.J. Oakes. Tungsten, Hard Metals and Refractory Alloys, vol. 5 (Princeton, Metal Powder Industries Federation, 2000), p. 7

  9. M. Furui, H. Kitamura, H. Anada, T.G. Langdon, Acta Mater. 55, 1083 (2007)

    Article  Google Scholar 

  10. A.V. Nagasekhar, U. Chakkingal, P. Venugopal, Candidature of equal channel angular pressing for processing of tubular commercial purity titanium. J. Mater. Process. Technol. 173, 53–60 (2006)

    Article  Google Scholar 

  11. O. Dimitrov, R. Fromageau, C. Dimitrov, in Recrystallization of Metallic Materials, ed. by F. Haessner (Riederer-Verlag GMBH, Stuttgart, 1978), p. 137

    Google Scholar 

  12. W.H. Huang, C.Y. Yu, P.W. Kao, C.P. Chang, The effect of strain path and temperature on the microstructure developed in copper processed by ECAE. Mater. Sci. Eng. A 366, 221–228 (2004)

    Article  Google Scholar 

  13. A. Yamashita, D. Yamaguchi, Z. Horita, T.G. Langdon, Influence of pressing temperature on microstructural development in equal-channel angular pressing. Mater. Sci. Eng A 287, 100–106 (2000)

    Article  Google Scholar 

  14. Y.C. Chen, Y.Y. Huang, C.P. Chang, P.W. Kao, The effect of extrusion temperature on the development of deformation microstructures in 5052 aluminium alloy processed by equal channel angular extrusion. Acta Mater. 51, 2005–2015 (2003)

    Article  Google Scholar 

  15. B.Q. Han, Z. Lee, D. Witkin, S. Nutt, E.J. Lavernia, Deformation behavior of bimodal nanostructured 5083 Al alloys. Metall. Mater. Trans. 36, 957–965 (2005)

    Article  Google Scholar 

  16. D.H. Shin, Y.S. Kim, E.J. Lavernia, Formation of fine cementite precipitates by static annealing of equal-channel angular pressed low-carbon steels. Acta Mater. 49, 2387–2393 (2001)

    Article  Google Scholar 

  17. Y. Fukuda, K. Oh-Ishi, Z. Horita, T.G. Langdon, Processing of a low-carbon steel by equal-channel angular pressing. Acta Mater. 50, 1359–1368 (2002)

    Article  Google Scholar 

  18. V.M. Segal, V.I. Reznikov, A.E. Drobyshevskiy, V.I. Kopylov, Plastic working of metals by simple shear. Russ. Metall. 1, 99–105 (1981)

    Google Scholar 

  19. K. Lange (ed.), Hand Book of Metal Forming (McGraw Hill, New York, 1985), pp. 13–14

    Google Scholar 

  20. M. Rijesh, K. Geethalakshmi, K, Srinivasan, Determination of friction factor for Al–5Zn–1Mg at various temperatures. Paper presented at the international symposium on energy related materials, 45th National Metallurgist Day & 61st Annual Technical Meeting of the Indian Institute of Metals, p. 42, 13–16 November, (2007)

  21. M. Rijesh, J. Valder, K. Geethalakshmi, A.O. Surendranathan, Deformation of Al–5Zn–1Mg in the temperature range of 303–673 K. Int. J. Eng. Sci. Manag. 2, 18–22 (2011)

    Google Scholar 

  22. S. Zhang, W. Hu, R. Berghammer, G. Gottinson, Microstructure evolution and deformation behavior of ultrafine-grained Al–Zn–Mg alloys with fine η′ precipitates. Acta Mater. 58, 6695–6705 (2010)

    Article  Google Scholar 

  23. G.E. Dieter, Mechanical Metallurgy (McGraw-Hill Book Company, New York, 2001), pp. 254–258

    Google Scholar 

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  1. Department of Metallurgical and Materials Engineering, National Institute of Technology Karnataka, Surathkal, P.O.Srinivasnagar, Mangalore, 575025, India

    James Valder, M. Rijesh & A. O. Surendranathan

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  1. James Valder
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  2. M. Rijesh
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  3. A. O. Surendranathan
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Correspondence to James Valder.

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Valder, J., Rijesh, M. & Surendranathan, A.O. Failure Analysis of Cast Tubular Specimens of Al–5Zn–1Mg While Processing at Room Temperature by Equal Channel Angular Pressing (ECAP). J Fail. Anal. and Preven. 14, 690–695 (2014). https://doi.org/10.1007/s11668-014-9874-7

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  • DOI: https://doi.org/10.1007/s11668-014-9874-7

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