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The Influence of Irradiation Parameters on the Behavior of Martensitic Titanium Nickel Thin Films

  • Thomas B. LaGrange (a1), David S. Grummon (a2) and Rolf Gotthardt (a1)

Abstract

In view of a planar processing technique to develop a micro-actuator, irradiation experiments on plastically deformed martensitic TiNi thin films were performed using 5 MeV Ni++, with various fluences and temperatures, to study the dependence of microstructure and transformation characteristics on irradiation parameters. TEM observation and X-ray diffraction spectra show that irradiation resulted in a sharply defined continuous amorphous matrix, extending to the projected ion range, that contained both monoclinic and body centered cubic nanocrystals. The irradiation mechanisms and films' temperature-displacement are discussed in terms of the observed microstructure.

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References

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1. Grummon, D.S. and Gotthardt, R., Acta. Mater. 48 (2000), p. 635–46.
2. LaGrange, T., Schaublin, R., Grummon, D.S. and Gotthardt, R., Proc. of ICOMAT (2002)
3. Brimhall, J., Kissinger, H. and Pelton, A., Radiat. Eff. 90, (1985), p. 241.
4. Moine, P. and Jaoen, C.., J. Alloys Compounds, 194 (1993) 373–80
5. Biersack, J. P. and Haggmark, L. G., Nucl. Instr. And Meth. 182/183 (1981) 199

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