Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-05T10:57:09.587Z Has data issue: false hasContentIssue false
  • English
  • Français

The effect of acetylene as a dielectric on modification of TiNi-based shape memory alloys by dry EDM

Published online by Cambridge University Press:  02 November 2015

Tyau-Song Huang ,
Shy-Feng Hsieh ,
Sung-Long Chen ,
Ming-Hong Lin ,
Shih-Fu Ou  and
Wei-Tse Chang
Tyau-Song Huang
Affiliation:
Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Shy-Feng Hsieh
Affiliation:
Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Sung-Long Chen
Affiliation:
Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Ming-Hong Lin
Affiliation:
Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Shih-Fu Ou*
Affiliation:
Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Wei-Tse Chang
Affiliation:
Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

This study modified the surfaces of three kinds of TiNi-based shape memory alloys (SMAs) by dry electrical discharge machining (EDM) in nitrogen (N2) and acetylene (C2H2) gas mixture. The effects of composition of the dielectric medium and work-piece on the machining performance and surface characteristics were investigated. Increasing the ratio of acetylene gas in gas mixture was beneficial for improving the material removal rate (MRR). However, adding a large amount of acetylene gas resulted in unstable discharge. A recast layer, comprising nitrides and carbides, which well adhered on the EDMed surface exhibited high hardness. Among Ti50Ni50, Ti50Ni49.5Cr0.5, and Ti40.5Ni49.5Zr10 SMA as a work-piece, Ti40.5Ni49.5Zr10 SMA has the lowest MRR owing to it possessed the highest melting temperature and thermal conductivity. The recast layer on Ti40.5Ni49.5Zr10 SMA, comprising zirconium nitride, exhibited the highest hardness and adhesion among all the SMAs. However, the high-hardness recast layer deteriorated the shape recovery of the SMA.

Keywords

TiNielectrical discharge machiningrecast layer
Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 22 , 27 November 2015 , pp. 3484 - 3492
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Hsieh, S.F., Chen, S.L., Lin, M.H., Ou, S.F., Lin, W.T., and Huang, M.S.: Crystallization and carbonization of an electrical discharge machined Zr-based bulk metallic glass alloy. J. Mater. Res. 28, 3177 (2013).Google Scholar
Saha, S.K. and Choudhury, S.K.: Experimental investigation and empirical modeling of the dry electric discharge machining process. Int. J. Mach. Tools Manuf. 49, 297 (2009).Google Scholar
Kunieda, M. and Yoshida, M.: Electrical discharge machining in Gas. CIRP. Ann. Manuf. Technol. 46, 143 (1997).Google Scholar
Zhang, Q.H., Zhang, J.H., Deng, J.X., Qin, Y., and Niu, Z.W.: Ultrasonic vibration electrical discharge machining in gas. J. Mater. Process. Technol. 129, 135 (2002).CrossRefGoogle Scholar
Curodeau, A., Richard, M., and Frohn-Villeneuve, L.: Molds surface finishing with new EDM process in air with thermoplastic composite electrodes. J. Mater. Process. Technol. 149, 278 (2004).Google Scholar
Lee, H.G., Simao, J., Aspinwall, D.K., Dewes, R.C., and Voice, W.: Electrical discharge surface alloying. J. Mater. Process. Technol. 149, 334 (2004).Google Scholar
ZhanBo, Y., Takahashi, J., and Kunieda, M.: Dry electrical discharge machining of cemented carbide. J. Mater. Process. Technol. 149, 353 (2004).Google Scholar
Starosvetsky, D. and Gotman, I.: Corrosion behavior of titanium nitride coated Ni-Ti shape memory surgical alloy. Biomaterials 22, 1853 (2001).Google Scholar
Kazuhiko, E., Rohit, S., Yoshima, A., and Hiroki, O.: Effects of titanium nitride coatings on surface and corrosion characteristics of Ni-Ti Alloy. Dent. Mater. J. 13, 228 (1994).Google Scholar
Baba, K., Hatada, R., Flege, S., Kraft, G., and Ensinger, W.: Formation of thin carbide films of titanium and tantalum by methane plasma immersion ion implantation. Nucl. Instrum. Methods Phys. Res., Sect. B 257, 746 (2007).CrossRefGoogle Scholar
Hsieh, S.F., Chen, S.L., Lin, H.C., Lin, M.H., Huang, J.H., and Lin, M.C.: A study of TiNiCr ternary shape memory alloys. J. Alloys Compd. 494, 155 (2010).Google Scholar
Lin, H.C. and Wu, S.K.: Strengthening effect on shape recovery characteristic of the equiatomic TiNi alloy. Scr. Metall. Mater. 26, 59 (1992).Google Scholar
Lin, H.C., Lin, K.M., and Cheng, I.C.: The electro-discharge machining characteristics of TiNi shape memory alloys. J. Mater. Sci. 36, 399 (2001).Google Scholar
Ramaswamy, D.V.N.: Material and Electrical Characterization of Titanium Nitride/Silicon Dioxide Gate Stacks (ProQuest, Ann Arbor, 2008).Google Scholar
Holleck, H.: Material selection for hard coatings. J. Vac. Sci. Technol., A 4, 2661 (1986).Google Scholar
Baker, T.W.: The coefficient of thermal expansion of zirconium nitride. Acta Crystallogr. 11, 300 (1958).Google Scholar
Zhao, J., Li, L., Li, D., and Gu, H.: A study on biocompatibility of TiN thin films deposited by dual-energy ion beam assisted deposition. J. Adhes. Sci. Technol. 18, 1003 (2004).Google Scholar
Jin, S., Zhang, Y., Wang, Q., Zhang, D., and Zhang, S.: Influence of TiN coating on the biocompatibility of medical NiTi alloy. Colloids Surf., B 101, 343 (2013).Google Scholar
Jeyachandran, Y.L. and Narayandass, S.K.: The effect of thickness of titanium nitride coatings on bacterial adhesion. Trends Biomater. Artif. Organs 24, 90 (2010).Google Scholar
Wickens, D.J., West, G., Kelly, P.J., Verran, J., Lynch, S., and Whitehead, K.A.: Antimicrobial activity of nanocomposite zirconium nitride/silver coatings to combat external bone fixation pin infections. Int. J. Artif. Organs 35, 817 (2012).Google Scholar
Kadam, S.N., Jagdeo, K.R., and Nair, M.R.: Corrosion study of ZrN coated Ti6Al4V alloy in normal saline (0.9% NaCl) solution. Int. Refereed J. Eng. Sci. 4, 42 (2012).Google Scholar
Shtansky, D.V., Gloushankova, N.A., Bashkova, I.A., Petrzhik, M.I., Sheveiko, A.N., Kiryukhantsev-Korneev, F.V., Reshetov, I.V., Grigoryan, A.S., and Levashov, E.A.: Multifunctional biocompatible nanostructured coatings for load-bearing implants. Surf. Coat. Technol. 201, 4111 (2006).Google Scholar
Brama, M., Rhodes, N., Hunt, J., Ricci, A., Teghil, R., Migliaccio, S., De Rocca, C., Leccisotti, S., Lioi, A., Scandurra, M., De Maria, C., Ferro, D., Pu, F., Panzini, G., Politi, L., and Scandurr, R.: Effect of titanium carbide coating on the osseointegration response in vitro and in vivo. Biomaterials 28, 595 (2007).Google Scholar
Chu, C.L., Ji, H.L., Yin, L.H., Pu, Y.P., Lin, P.H., and Chu, P.K.: Fabrication, properties, and cytocompatibility of ZrC film on electropolished NiTi shape memory alloy. Mater. Sci. Eng., C 31, 423 (2011).Google Scholar
Ding, M.H., Zhang, H.S., Zhang, C., and Jin, X.: Characterization of ZrC coatings deposited on biomedical 316L stainless steel by magnetron sputtering method. Surf. Coat. Technol. 224, 34 (2013).CrossRefGoogle Scholar
Shatynski, S.R.: The thermochemistry of transition metal carbides. Oxid. Met. 13, 105 (1979).Google Scholar
Huang, T.S., Hsieh, S.F., Chen, S.L., Lin, M.H., Ou, S.F., and Chang, W.T.: Surface modification of TiNi-based shape memory alloys by dryelectrical discharge machining. J. Mater. Process. Technol. 221, 279 (2015).Google Scholar