Skip to main content Accessibility help

Morphological Stability of Ni(Al)/Ni3Al Nanolaminate Composites

  • Jason P. Fain (a1), Rajarshi Banerjee (a1), Daniel Josell (a2), Peter M. Anderson (a3), Hamish Fraser (a1), Natalia Tymiak (a4) and William Gerberich (a1)...


This manuscript discusses the morphological instability observed when multilayered samples with alternating layers of Γ-Ni(Al)/γ-Ni3Al are exposed to 800C for approximately 100 hours. Samples with 20nm/20nm or 120nm/120nm layer thickness and <001> or <Ill> crystal orientation to the interface normal were tested. Pinching off of layers is strongly affected by crystal orientation and layer thickness. Corresponding modeling suggests that the stability of this system is sensitive to fluctuations in the volume fraction of the two phases, the aspect ratio of columnar grains in the layers, and whether coherent or semi-coherent interfaces are present.



Hide All
1. Clemens, B.M., King, H., Barnett, S.A., MRS Bulletin 24(2), p. 20 (1999).
2. Anderson, P.M., Foecke, T., and Hazzledine, P.M., MRS Bulletin 24(2), p. 27 (1999).
3. Nathal, M.V., MacKay, R.A., and Miner, R.V., Metall. Trans. A 20A, p. 133 (1989).
4. Paris, O., Fahrmann, M., Fahrmann, E., Pollock, T.M., and Fratzl, P., Acta Mater. 45(3), p. 1085 (1997).
5. MacKay, R.A. and Ebert, L.J., Metall. Trans. A 16A, p. 1969 (1985).
6. Caron, P., Henderson, P.J., Khan, T., and McLean, M., Scripta Metall. 20, p. 875 (1996).
7. Josell, D., Coriell, S.R., and McFadden, G.B., Acta Metall. Mater. 43(5), p. 1987 (1995).
8. Josell, D. and Spaepen, F., MRS Bulletin 24(2), p. 39 (1999).
9. Sridhar, N.J., Rickman, J.M., and Srolovitz, D.J., Acta Mater. 45(7), 2715 (1997).
10. Ardell, A., personal communication with JPF (1998).
11. Murr, L.E., Interfacial Phenomena in Metals and Alloys, Addison-Wesley, NY (1975).
12. Chen, S.P, Srolovitz, D.J., and Voter, A.F., J. Mater. Res. 4(1), p. 62 (1989).
13. Marsh, C. and Chen, H., Acta Metall. Mater. 38(11), p. 2287 (1990).
14. Mishin, Y., Orekhov, N., Razumovskii, I., Alyoshin, G., and Noat, P., Mater. Sci. Eng. A171, p. 163 (1993).
15. Gada, J. and MacKay, R.A., Scripta Metall. 23, p. 1835 (1989).


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed