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Characterization of NiTi and NiTiCu Porous Shape Memory Alloys Prepared by Powder Metallurgy (Part I)

  • Research Article - Mechanical Engineering
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Abstract

In this paper, the effect of compacting pressure (150–450 MPa) and copper (Cu) additions (2.5, 5, 7.5 and 10 wt%) on the microstructure and physical properties of NiTi-based shape memory alloys prepared by powder metallurgy is studied. Many characterization techniques were employed in this study such as X-ray diffraction method and scanning electron microscope. The chemical composition of the prepared alloys and microstructure was achieved by using scanning electron microscope equipped with EDS. Differential scanning calorimetric is utilized to measure the transformation temperature of the prepared alloys. Several physical tests such as particle size distribution measurements, density and porosity of green compacted samples and density and porosity after sintering are achieved. XRD test shows that the master sintered samples consist of three phases at room temperature: NiTi monoclinic phase, NiTi cubic phase and Ni3Ti hexagonal phase. Furthermore, (CuNi2Ti) intermetallic compound is appeared in the samples with 2.5, 5, 7.5 and 10 wt% of Cu. According to the results, it was found that compacting pressure has an essential effect on the decreases in porosity percentage and the results show that (Cu) additions increase porosity percentage in all weight percentages of additives.

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References

  1. Tan L., Cron W.C.: In situ TEM observation of two-step martensitic transformation in aged NiTi shape memory alloy. Scr. Mater. 50, 819–823 (2004)

    Article  Google Scholar 

  2. Pulletikurthi C., Munroe N., Gill P.: Cytotoxicity of Ni from surface-treated porous nitinol (PNT) on osteoblast cells. J. Mater. Eng. Perform. 20, 824–829 (2001)

    Article  Google Scholar 

  3. Shabalorskaya: Surface corrosion and biocompatibility aspects of nitinol as an implant material. Bio-Med. Mater. Eng. 12, 69–109 (2002)

    Google Scholar 

  4. Ryan G., Pandit A., Pan agiotis D.: Fabrication methods of porous metals for use in orthopedic applications. Biomaterials 27, 2651–2670 (2006)

    Article  Google Scholar 

  5. Yun B., Jian L., Yili Y.: Stress–strain behavior of porous Ni–Ti shape memory intermetallic synthesized from powder sintering. Intermetallic 8, 643–646 (2000)

    Article  Google Scholar 

  6. Lagoudas, D.; Entchev, P.; vandygriff, E.: The effect of transformation induced plasticity on the mechanical behavior of porous SMAs. Center for Mechanics of Composites, Aerospace Engineering Department (2002)

  7. Bram M., Ahmad A., Heckerman A.: Powder metallurgical fabrication processes for NiTi shape memory alloy parts. Mater. Sci. Eng. A. 337, 254–263 (2002)

    Article  Google Scholar 

  8. Bertheville B.: Porous single-phase NiTi processed under Ca reducing vapor for use as a bone graft substitute. Biomaterials 27, 1246–1250 (2006)

    Article  Google Scholar 

  9. Goryszka T., Humbeeck J.V.: NiTi Cu shape memory alloy produced by powder technology. J. Alloy. Compd. 456, 194–200 (2008)

    Article  Google Scholar 

  10. Sadrnezhaad S., Hussein S.: Fabrication of porous NiTi-shape memory alloy objects by partially hydride titanium powder for biomedical applications. Mater. Des. 30, 4483–4487 (2009)

    Article  Google Scholar 

  11. Lucaci, M.; Orban, R.L.; Tsakiris, V.: Shape memory alloys for MEMS components made by powder metallurgy processes. 2nd electronics system integration technology conference, Greenwich, UK (2011)

  12. Randygriff, E.L.: Fabrication and characterization of porous NiTi shape memory alloy by elevated pressure sintering. M.Sc. Thesis, Texas, AZM University (2002)

  13. Penrod, L.: Fabrication and characterization of porous shape memory alloys. M.Sc. Thesis, Texas, AZM University (2003)

  14. Naresh N., Vreeland T., Ahrens T.J.: Microstructural modifications in a dynamically consolidated microcrystalline nickel–titanium alloy powder. J. Mater. Sci. 22, 4446–4452 (1987)

    Article  Google Scholar 

  15. Kadhum, A. R.: Investigation of certain shape memory alloys in space system. Ph.D. Thesis, Department of Material Engineering, University of Babylon-Iraq, College of Engineering (2008)

  16. ASTM B-328, Standard test method for density, oil content, and interconnected porosity of sintered metal structural parts and oil-impregnated bearing. ASTM International (2003)

  17. Lakshmanan, A.: Sintering of ceramic—new emerging techniques. In Tech Web. Org. Croatia (2012)

  18. Sadeq, M.A.: Corrosion behavior of biocompatible coatings of porous NiTi shape memory alloy. Ph.D. Thesis, Production Engineering and Metallurgy Department, University of Technology-Iraq (2013)

  19. Goryczka T., Humbeeck J.V.: Characterization of a NiTiCu shape memory alloy produced by powder technology. J. Achiev. Mater. Manuf. Eng. 17(1-2), 65–68 (2006)

    Google Scholar 

  20. Li B.Y., Rong L.J., Li Y.Y.: Porous NiTi alloy prepared from elemental powder sintering. J. Mater. Res. 13(10), 2847–2851 (1998)

    Article  Google Scholar 

  21. Otsuka K., Rin X.: Physical metallurgy of Ti–Ni based shape memory alloys. Prog. Mater. Sci. 50, 511–678 (2005)

    Article  Google Scholar 

  22. Muir A.J., Sanjabi S., Fu Y.Q.: Nano indentation of binary and ternary Ni–Ti-based shape memory alloy thin films. Surf. Coat. Technol. 202, 3115–3120 (2008)

    Article  Google Scholar 

  23. Valeanu M., Lucaci M., Crisan A.D.: Martensitic transformation of Ti50Ni30Cu20 alloy prepared by powder metallurgy. J. Alloy. compd. 509, 4495–4498 (2011)

    Article  Google Scholar 

  24. Deaujo C.J., Dasilva N.J., Dasilva M.M.: A comparative study of Ni–Ti and Ni–Ti–Cu shape memory alloy processed by plasma melting and injection molding. Mater. Des. 32, 4925–4930 (2011)

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Engineering, University of Technology, Baghdad, Iraq

    Alaa Abdulhasan Atiyah & Nawal Mohammed Dawood

  2. Materials Engineering College, University of Babylon, Babylon, Iraq

    Abdul-Raheem Kadhum Abid Ali

Authors
  1. Alaa Abdulhasan Atiyah
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  2. Abdul-Raheem Kadhum Abid Ali
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  3. Nawal Mohammed Dawood
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Correspondence to Alaa Abdulhasan Atiyah.

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Atiyah, A.A., Ali, AR.K.A. & Dawood, N.M. Characterization of NiTi and NiTiCu Porous Shape Memory Alloys Prepared by Powder Metallurgy (Part I). Arab J Sci Eng 40, 901–913 (2015). https://doi.org/10.1007/s13369-014-1538-0

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  • DOI: https://doi.org/10.1007/s13369-014-1538-0

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