Skip to main content

Advertisement

SpringerLink
Functionally graded Ni-Ti microstructures synthesised in process by direct laser metal deposition
Download PDF
Download PDF
  • ORIGINAL ARTICLE
  • Open Access
  • Published: 19 February 2015

Functionally graded Ni-Ti microstructures synthesised in process by direct laser metal deposition

  • T. E. Abioye1,
  • P. K. Farayibi1,
  • P. Kinnel1 &
  • …
  • A. T. Clare1 

The International Journal of Advanced Manufacturing Technology volume 79, pages 843–850 (2015)Cite this article

  • 1356 Accesses

  • 40 Citations

  • Metrics details

Abstract

The fabrication of biomedical devices using Ni-Ti compositions is limited to conventional techniques and the use of near equiatomic pre-alloyed Ni and Ti powders. In this study, functionally graded walls and cylinder built by concurrent feeding of Ni powder and commercially pure (CP) Ti wire using direct laser metal deposition technique are presented. The built structures consist of CP Ti wire-deposited layers and Ni-Ti layers of varying Ni composition. The microstructures of the built Ni-Ti structures including phase identification, phase compositions and area fractions of the phases present at various processing parameters were determined using a combination of scanning electron microscopy/energy dispersive X-ray spectroscopy, X-ray diffractometry and image processing software. Vickers micro-hardness test was conducted on the deposited structures. It was found that the Ni-Ti layers comprise of NiTi and NiTi2 phases. The area fraction of the NiTi phase increases, whereas NiTi2 decreases with increasing the Ni powder feed rate. Ni-Ti layers with higher area fractions of NiTi2 phase are found to be harder with a maximum of 513 HV0.3 found in this study. The micro-hardness of Ni-Ti layers is, by at least a factor of 1.5, higher than the CP Ti wire laser-deposited layers.

Download to read the full article text

Working on a manuscript?

Avoid the common mistakes

References

  1. Elahinia MH, Hashemi M, Tabesh M, Bhaduri SB (2012) Manufacturing and processing of NiTi implants: a review. Prog Mater Sci 57:911–946

    Article  Google Scholar 

  2. Man HC, Zhang S, Cheng FT, Guoc X (2005) Laser fabrication of porous surface layer on NiTi shape memory alloy. Mater Sci Eng A 404:173–178

    Article  Google Scholar 

  3. Yan XJ, Gugel H, Huth S, Theisen W (2011) Microstructures and properties of laser cladding NiTi alloy with W for biomedical applications. Mater Lett 65:2934–2936

    Article  Google Scholar 

  4. Dayananda GN, Varughese B, Harish Kumar T, Subba Rao M (2005) Development of an SMA based smart landing gear for rotorcraft and other similar applications, in Proceedings of Fourth International Conference on Smart Materials, Structures and Systems. Bangalore, India. p SB–36 to 44

  5. Clare AT, Paul RC, Davies S, Sutcliffe JC, Tsopanos S (2008) Selective laser melting of high aspect ratio 3D nickel–titanium structures two way trained for MEMS applications. Int J Mech Mater Des 4(2):181–187

    Article  Google Scholar 

  6. Fadlallah SA, El-Bagoury N, Gad El-Rab SMF, Ahmed RA, El-Ousamii G (2014) An overview of NiTi shape memory alloy: corrosion resistance and antibacterial inhibition for dental application. J Alloys Compd 583:455–464

    Article  Google Scholar 

  7. Kosec T, Mocnik P, Legat A (2014) The tribocorrosion behaviour of NiTi alloy. Appl Surf Sci 288:727–735

    Article  Google Scholar 

  8. Ng KW, Man HC, Yue TM (2011) Characterization and corrosion study of NiTi laser surface alloyed with Nb or Co. Appl Surf Sci 257(8):3269–3274

    Article  Google Scholar 

  9. Abioye TE, Folkes J, Clare AT (2013) A parametric study of Inconel 625 wire laser deposition. J Mater Process Technol 213(12):2145–2151

    Article  Google Scholar 

  10. Azo Materials. Titanium alloys - Ti-6Al-4V Grade 5. 2002. Available at www.azom.com/article.aspx?articleID=1547. Accessed on 15th Dec., 2014.

  11. Farayibi PK, Folkes JA, Clare AT (2013) Laser deposition of Ti-6Al-4V wire with WC for functionally graded components. J Mater Manuf Process 28(1–5):514–518

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, Nottingham, UK

    T. E. Abioye, P. K. Farayibi, P. Kinnel & A. T. Clare

Authors
  1. T. E. Abioye
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. K. Farayibi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. P. Kinnel
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. T. Clare
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. T. Clare.

Rights and permissions

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Abioye, T.E., Farayibi, P.K., Kinnel, P. et al. Functionally graded Ni-Ti microstructures synthesised in process by direct laser metal deposition. Int J Adv Manuf Technol 79, 843–850 (2015). https://doi.org/10.1007/s00170-015-6878-8

Download citation

  • Received: 17 July 2014

  • Accepted: 04 February 2015

  • Published: 19 February 2015

  • Issue Date: July 2015

  • DOI: https://doi.org/10.1007/s00170-015-6878-8

Share this article

Anyone you share the following link with will be able to read this content:

Sorry, a shareable link is not currently available for this article.

Provided by the Springer Nature SharedIt content-sharing initiative

Keywords

  • Ni-Ti
  • Direct laser metal deposition
  • Micro-hardness
  • Functionally graded component
  • Microstructure
Download PDF

Working on a manuscript?

Avoid the common mistakes

Advertisement

Over 10 million scientific documents at your fingertips

Switch Edition
  • Academic Edition
  • Corporate Edition
  • Home
  • Impressum
  • Legal information
  • Privacy statement
  • California Privacy Statement
  • How we use cookies
  • Manage cookies/Do not sell my data
  • Accessibility
  • FAQ
  • Contact us
  • Affiliate program

Not affiliated

Springer Nature

© 2023 Springer Nature Switzerland AG. Part of Springer Nature.