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Temperature and Orientation Dependence of Surface Film Effects in Single Crystal Nial

  • R.D. Noebe (a1), J.T. Kim (a1) and R. Gibala (a1)

Abstract

During deformation of bcc metals and bcc-based ordered alloys, conditions of elastic and plastic constraint associated with the presence of thin adherent surface films can be responsible for introducing increased densities of mobile dislocations in the metal, resulting in enhanced ductility and reduced yield and flow stresses of the film-coated materials. In the present paper, surface film effects were investigated as a function of temperature and crystallographic orientation for single crystal β-NiAl. Appreciable temperature-dependent and orientation-dependent surface film effects were observed, as were significant effects of film adherence on the observation of surface film softening.

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1. Noebe, R.D. and Gibala, R., High Temperature Ordered Intermetallic Alloys, Koch, C.C., Liu, C.T. and Stoloff, N.S., eds., MRS Proceedings, Vol. 39, p. 319, (1985).
2. Noebe, R.D. and Gibala, R., Scripta Met. 20, 1635 (1986).
3. Noebe, R.D. and Gibala, R., Structure and Deformation of Boundaries, Subramanian, K. and Imam, M.A., eds., p. 89, TMS-AIME, Warrendale, PA (1986).
4. Ruddle, G.E. and Wilsdorf, H.G.F., Appl. Phys. Lett. 12, 271 (1968).
5. Sethi, V.K. and Gibala, R., Phil. Mag. 37, 419 (1978)
6. Eshelby, J.D., Phil. Mag. 40, 903 (1949).
7. Yamaguchi, M., Mechanical Properties of BCC Metals, Meshii, M., ed., p. 31, TMS-AIME, Warrendale, PA (1982).
8. Doychak, J.K., M.S. Thesis (1984), Ph.D. Thesis (1986), Case Western Reserve University, Cleveland, OH.
9. Doychak, J.K., Mitchell, T.E. and Smialek, J.L., High Temperature Ordered Intermetallic Alloys, Koch, C.C., Liu, C.T. and Stoloff, N.S., eds., MRS Proceedings, vol. 39, p. 475, (1985).
10. Noebe, R.D., M.S. Thesis, Case Western Reserve University, Cleveland, OH., (1986).
11. Kim, J.T., Ph.D. Thesis, The University of Michigan, Ann Arbor, MI., (in progress).
12. Mitchell, T.E., private communication.
13. Pascoe, R.T. and C.Newey, W.E., Phys. Stat. Sol. 29, 357 (1968).
14. Fraser, H.L., Loretto, M.H., Smallman, R.E. and Wasilewski, R.J., Phil. Mag. 28, 639 (1973).
15. Sethi, V.K., Gibala, R. and Heuer, A.H., Amer. Cer. Soc. Bull. 57, 308 (1978).

Temperature and Orientation Dependence of Surface Film Effects in Single Crystal Nial

  • R.D. Noebe (a1), J.T. Kim (a1) and R. Gibala (a1)

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