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Study of the Hall-Petch Dependence in an Annealed Nanocrystalline Iron Thin Film

  • J. B. Savader (a1), M. R. Scanlon (a1) (a2), R. C. Cammarata (a1), D. T. Smith (a3) and C. Hayzelden (a4)...

Abstract

The hardness dependence on grain size of a nanocrystalline iron thin film prepared by sputtering was investigated. The as-deposited film had an initial grain size of 11.4 nm and sections of the film were annealed in a reducing atmosphere furnace to increase the grain size up to 31.5 nm. Hardness was measured by nanoindentation for different grain sizes, and a Hall-Petch plot of hardness versus reciprocal square root of grain size was obtained. This Hall-Petch plot gave a positive slope that was about a factor of seven smaller than the slope obtained from ball-milled iron with grain sizes between 6.0 and 8.5 nm [8].

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22. Savader, J.B., Scanlon, M.R., Cammarata, R.C., Smith, D.T., and Hayzelden, C., submitted to Scripta Metall. Mater.

Study of the Hall-Petch Dependence in an Annealed Nanocrystalline Iron Thin Film

  • J. B. Savader (a1), M. R. Scanlon (a1) (a2), R. C. Cammarata (a1), D. T. Smith (a3) and C. Hayzelden (a4)...

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