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Paper Titles
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Ti-6Al-4V Recycled from Machining Chips by Equal Channel Angular Pressing
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Ti-6Al-4V Recycled from Machining Chips by Equal Channel Angular Pressing

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Abstract:

Ti-6Al-4V machining chips have been recycled into fully dense material by a solid-state process based on equal channel angular pressing (ECAP). The as-recycled material possessed a refined microstructure and contained a series of oxide layers associated with the boundary of each machining chip. The chip boundaries were observed to dissolve into interstitial solid solution following static annealing. A series of static heat treatments within the temperature range 700 to 1000°C, for durations of between 1 and 20 hours, were performed. The effect of thermomechanical processing on microstructure and mechanical properties is discussed and compared to the as-recycled and commercially available materials.

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Periodical:

Key Engineering Materials (Volume 520)

Pages:

295-300

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.520.295

Citation:

Cite this paper

Online since:

August 2012

Authors:

D.T. McDonald, Peng Luo, Suresh Palanisamy, Matthew S. Dargusch, Kenong Xia

Keywords:

Equal-Channel Angular Pressing (ECAP), Machining Chip, Recycling, Ti6Al4V

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References

[1] T. Aizawa, K. Halada, T. G. Gutowski, Critical issues in promotion of environmentally benign manufacturing and materials processing, Mater. Trans. 43 (2002) 390-396.

DOI: 10.2320/matertrans.43.390

Google Scholar

[2] Y. Chino, T. Hoshika, J. S. Lee, M. Mabuchi, Mechanical properties of AZ31 Mg alloy recycled by severe deformation, J. Mater. Res. 21 (2006) 754-760.

DOI: 10.1557/jmr.2006.0090

Google Scholar

[3] M. Mabuchi, K. Kubota, K. Higashi, New recycling process by extrusion for machined chips of AZ91 magnesium and mechanical properties of extruded bars, Mater. Trans. 36 (1995) 1249-1254.

DOI: 10.2320/matertrans1989.36.1249

Google Scholar

[4] Y. Chino, M. Mabuchi, S. Otsuka, K. Shimojima, H. Hosokawa, Y. Yamada, C. Wen, H. Iwasaki, Corrosion and mechanical properties of recycled 5083 aluminium alloy by solid state recycling, Mater. Trans. 44 (2003) 1284-1289.

DOI: 10.2320/matertrans.44.1284

Google Scholar

[5] J. Gronostajski, H. Marciniak, A. Matuszak, New methods of aluminium and aluminium-alloy chips recycling, J. Mater. Proc. Technol. 106 (2000) 34-39.

DOI: 10.1016/s0924-0136(00)00634-8

Google Scholar

[6] Y. Chino, H. Iwasaki, M. Mabuchi, Solid-state recycling for machined chips of iron by hot extrusion and annealing, J. Mater. Res. 19 (2004) 1524-1530.

DOI: 10.1557/jmr.2004.0204

Google Scholar

[7] P. Luo, H. Xie, M. Paladugu, S. Palanisamy, M. S. Dargusch, K. Xia, Recycling of titanium machining chips by severe plastic deformation consolidation, J. Mater. Sci. 45 (2010) 4606-4612.

DOI: 10.1007/s10853-010-4443-2

Google Scholar

[8] G. Lütjering, J. C. Williams, Titanium, Engineering Materials and Processes, second ed., Springer, Berlin (2007).

Google Scholar

[9] T. Watanabe, Y. Horikoshi, The sintering phenomenon of titanium powders-a discussion, Int. J. Powder Met. and Powder Technol. 12 (1976) 209-214.

Google Scholar

[10] C. Hertl, E. Werner, R. Thull, U. Gbureck, Oxygen diffusion hardening of cp-titanium for biomedical applications, Biomed. Mater. 5 (2010) 1-8.

DOI: 10.1088/1748-6041/5/5/054104

Google Scholar

[11] J. Gronostajski, A. Matuszak, The recycling of metals by plastic deformation: an example of recycling of aluminium and its alloys chips, J. Mater. Proc. Tech. 92-93 (1999) 35-41.

DOI: 10.1016/s0924-0136(99)00166-1

Google Scholar

[12] A. E. Jenkins, The oxidation of titanium at high temperatures in an atmosphere of pure oxygen, J. Inst. Metals, 82 (1953-1954) 213-221.

Google Scholar

[13] C. Leyens, M. Peters, Titanium and Titanium Alloys, WILEY-VCH, (2005).

Google Scholar

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

DOI: 10.1016/j.pmatsci.2006.02.003

Google Scholar

[15] M. R. Shankar, B. C. Rao, S. Lee, S. Chandrasekar, A. H. King, W. D. Compton, Severe plastic deformation (SPD) of titanium at near-ambient temperature, Acta Mater. 51 (2006) 3691-3700.

DOI: 10.1016/j.actamat.2006.03.056

Google Scholar

[16] F. J. Humphreys and M. Hatherly, Recrystallization and related annealing phenomenon, second ed., Elsevier, Oxford (2004).

Google Scholar

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