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Micro extrusion of ultrafine grained titanium prepared by ECAP

  • Metallic materials
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Abstract

Micro compression and micro extrusion experiments of ultrafine grained titanium cylindrical specimens in diameters of 4, 2, and 1 mm prepared by equal channel angular pressing (ECAP) were conducted on the micro plastic forming test machine. The effects of specimen size, grain size, deformation temperature and extrusion speed on the flow stress and forming properties of the ultrafine grained pure titanium were investigated. The flow stress of ultrafine grained pure titanium specimen decreases with decreasing specimen size. The yield limit of pure titanium with refined grain prepared by ECAP is significantly greater than that of coarse grained specimen. Also the research results show that the flow stress of specimen increases with decreasing deformation temperature and with the increase of the strain rate, and the ultrafine grained pure titanium possesses good micro forming properties at deformation temperature of 300 °C.

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References

  1. Geiger M, Kleiner M, Tiesler R, et al. Microforming[J]. Annals of the CIRP, 2001, 50(2): 445–462

    Article  Google Scholar 

  2. Geiger M, Merklein M and Tolazzi M. Metal Forming Ensures Innovation and Future in Europe[C]. In: Proceedings of the 8th International Conference on Technology of Plasticity, Verona, 2005: 25–30

    Google Scholar 

  3. Engel U and Eckstein R. Microforming-from Basic Research to Its Realization[J]. Journal of Materials Processing Technology, 2002, 125–126:35–44

    Article  Google Scholar 

  4. Vollertsen F, Niehoff HS and Hu Z. State of the Art in Micro Forming[J]. International Journal of Machine Tools & Manufacture, 2006, 46(11): 1172–1179

    Article  Google Scholar 

  5. Latysh V, Krallics G, Alexandrov IV, et al. Application of Bulk Nanostructured Materials in Medicine[J]. Current Applied Physics, 2006, 6(2): 262–266

    Article  Google Scholar 

  6. Zhernakov VS, Latysh VV, Stolyarov VV, et al. The Developing of Nanostructured SPD Ti for Structural Use[J]. Scripta Materialia, 2001, 44(8): 1771–1774

    Article  Google Scholar 

  7. Dalla Torre FH, Lapovok RY, Sandlin JD, et al. Microstructures and Properties of Copper Proce-ssed by Equal Channel Angular Extrusion for 1–16 Passes[J]. Acta Materialia, 2004, 52(16): 4819–4832

    Article  Google Scholar 

  8. Valiev RZ, Islamgaliev RK and Alexandrov IV. Bulk Nano-structured Materials from Severe Plastic Deformation[J]. Progress in Materials Science, 2000, 45: 103–189

    Article  Google Scholar 

  9. Neishi K, Hotita TG. Archieving Superplasti-city in Ulterfine-grained Copper: Influence of Zn and Zr Additions[J]. Materials Science and Engineering, 2003, A352(1–2): 129–135

    Article  Google Scholar 

  10. Wang GC, Zheng W, Jiang H, et al. Experimental Research on Size Effect of Micro Upsetting of Pure Copper[J]. Journal of Mechanical Engineering, 2012, 48(14): 32–37

    Article  Google Scholar 

  11. Guo B, Gong F, Wang CJ, et al. Flow Stress and Tribology Size Effects in Scaled Down Cylinder Compression[J]. Trans.Nonferrous Met. Soc., 2009, 19(s2): s516–s520

    Article  Google Scholar 

  12. Chen FK and Tsai JW. A Study of Size Effect in Micro-forming with Micro-hardness Tests[J]. Journal of Materials Processing Technology, 2006, 177(1): 146–149

    Article  Google Scholar 

  13. Zhu XF. Ultrafine-grained Aluminum Micro Compression Deformation Behavior and Microstru-cture Evolution[D]. Harbin: Harbin Institute of Technology, 2013

    Google Scholar 

  14. Zhou ML. The Similarity of Sciences[M]. Beijing: Science Press, 2004

    Google Scholar 

  15. Dong XH, Wang Q, Zhang HM, et al. Research Progress of Size Effect of Micro Forming[J]. Scientia Sinica Techologica, 2013, 43(2): 115–130

    Google Scholar 

  16. Trelewicz J, Schuh C. The Hall-Petch Breakdown in Nanocrystalline Metals: A Crossover to Glass-like Deformation[J]. Acta Materialia, 2007, 55(17): 5948–5958

    Article  Google Scholar 

  17. Aifantis KE, Konstantinidis AA. Hall-Petch Revisited at the Nanoscale[J]. Materials Science & Engineering B, 2009, 163(3): 139–144

    Article  Google Scholar 

  18. Geiger M, Kleinera M, Eckstein R, et al. Microforming[J]. CIRP Annals-Manufacturing Technology, 2001, 50(2): 445–462

    Article  Google Scholar 

  19. Guo B, Gong F and Shan D. Research Progress of Tribology in Microforming[J]. Journal of Plasticity Engineering, 2009, 16(4): 146–151

    Google Scholar 

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Authors and Affiliations

  1. Shanxi Province Metallurgical Equipment Design Theory and Technology Key Laboratory (Provincial Department to Build National Key Laboratory Training Base), Taiyuan University of Science and Technology, Taiyuan, 030024, China

    Xiaogang Wang  (王效岗), Jianlong Liu & Zhengyi Jiang

  2. Metallurgical Engineering College, Xi’an University of Architecture and Technology, Xi’an, 710055, China

    Xicheng Zhao & Xiaoyan Liu

  3. School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia

    Haibo Xie & Zhengyi Jiang

Authors
  1. Xiaogang Wang  (王效岗)
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  2. Jianlong Liu
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  3. Xicheng Zhao
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  4. Xiaoyan Liu
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  5. Haibo Xie
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  6. Zhengyi Jiang
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Corresponding author

Correspondence to Xiaogang Wang  (王效岗).

Additional information

Funded by the National Natural Science Foundation of China ( No. 51474170) and the SAN JIN Scholars Program

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Wang, X., Liu, J., Zhao, X. et al. Micro extrusion of ultrafine grained titanium prepared by ECAP. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 32, 437–443 (2017). https://doi.org/10.1007/s11595-017-1616-8

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  • DOI: https://doi.org/10.1007/s11595-017-1616-8

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