Skip to main content

Early Stages of Decomposition in Ni-Rich Ni-Ti

  • M. Kompatscher (a1), B. Demé (a2), J. Hecht (a1), H. Heinrich (a1), J. Kohlbrecher (a3), J.-M. Schneider (a1), B. Schönfeld (a1) and G. Kostorz (a1)...

In-situ small-angle neutron scattering was performed on Ni-(10 to 12) at.% Ti polycrystals and single crystals at temperatures between 870 and 1270 K. During decomposition metastable precipitates of cuboidal shape form with preferred alignement along <100>. The Ti concentration of these precipitates is 17(1) at.% (between 870 and 950 K). Metastable precipitates precede the formation of platelets of the stable η phase even outside the hitherto accepted metastable miscibility gap.

Hide All
1. Calderon, H.A. and Kostorz, G., in Morris E. Fine Symposium, edited by Liaw, P.K., Weertman, J.R., Marcus, H.L., and Santner, J.S. (The Minerals, Metals and Materials Society, 1991), pp. 1116.
2. Fährmann, M., Fratzl, P., Paris, O., Fahrnann, E., and Johnson, W.C., Acta Metall. Mater. 43, 1007 (1995).
3. Sequeira, A.D., Calderon, H.A., Kostorz, G., and Pedersen, J.S., Acta Metall. Mater. 43, 3427 (1995).
4. Cerri, A., Schönfeld, B., and Kostorz, G.: Phys, Rev. B 42, 958 (1990).
5. Vyskocil, P., Pedersen, J.S., Kostorz, G., and Schönfeld, B., Acta Mater. 45, 3311 (1997).
6. Kostorz, G., in Physical Metallurgy, 4th ed., edited by Cahn, R.W. and Haasen, P. (North-Holland, Amsterdam, 1996), pp. 11151199.
7. Cerri, A., Kostorz, G., Schmelczer, R., Schönfeld, B., and Schwander, P., in Phase Transformations '87, edited by Lorimer, G.W. (The Institute of Metals, London, 1988), pp. 592596.
8. Hashimoto, K. and Tsujimoto, T., Trans. JIM 19, 77 (1978).
9. Massalski, T.B. (ed.), Binary Alloy Phase Diagrams, Vol. 2 (ASM International, Materials Park, 1990).
10. Kostorz, G., Kompatscher, M., and Schönfeld, B., in Solid-Solid Phase Transformation '99 (Kyoto, Japan), in press.
11. Kompatscher, M., Schönfeld, B., Heinrich, H., and Kostorz, K., J. Appl. Cryst., to be published.
12. Bellen, P., Hari Kumar, K.C., and Wollants, P., Z. Metallkd. 87, 972 (1996).
13. Rastogi, P.K. and Ardell, A.J., Acta Metall. 17, 595 (1969).
14. Soffa, W.A. and Laughlin, D.E., Acta Metall. 37, 3019 (1989).
15. Bucher, R., Schönfeld, B., Kostorz, G., and Zolliker, M., Phys. Stat. Sol. (a) 175, 527 (1999).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


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