Hostname: page-component-6bf8c574d5-9nwgx Total loading time: 0 Render date: 2025-02-15T09:08:52.828Z Has data issue: false hasContentIssue false
  • English
  • Français

The Structure of Rapidly Solidified Powders of Ni3Al and Ni3 Al + B + Ti

Published online by Cambridge University Press:  21 February 2011

I. Baker ,
F. Ichishita  and
E.M. Schulson
I. Baker
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755
F. Ichishita
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755
E.M. Schulson
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755
Get access

Abstract

Powders of stoichiometric Ni3Al and Ni3Al containing boron and titanium were produced by rapid solidification rate (RSR) processing. Most particles were found to be spherical; some had skins and some contained holes. Fractured particles were found, indicating possible brittleness. Particle size distributions were log-normal with an arithmetic mean particle size of 23.5μm. Both alloys exhibited a dendritic structure in which compositional differences were present. In addition, stoichiometric Ni3Al contained interdendritic lamellae. X-ray diffractometry indicated that the powders were only partially ordered.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 28: Symposium F – Rapidly Solidified Metastable Materials , 1983 , 395
Copyright
Copyright © Materials Research Society 1984

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Schulson, E.M., Res, Mech. Letters 1 (1981) 111 Google Scholar
2. Jones, H. and Suryanarayana, C., J. Mat. Sci. 8 (1973) 705 10.1007/BF00561226Google Scholar
3. Aoki, K. and Izumi, O., J. Jap. Inst. Metals 43 (1979) p.1190 10.2320/jinstmet1952.43.12_1190Google Scholar
4. Liu, C.T. and Koch, C.C., Proc. Conf. Trends in Critical Materials Requirements for Steels of the Future, Conservation and Substitution Technology for Chromium Vanderbilt University October 1982 Google Scholar
5. Slaughter, E.R. and Das, S.M., “Rapid Solidification Processing”, ed. Mehrabian, R., Kear, B.H. and Cohen, M., Claitor's Publ. Div., (1978) p. 354 Google Scholar
6. Patterson II, R.J., Cox, A.R. and Van Reuth, E.C., J. of Metals, September 1980, 3410.1007/BF03354515Google Scholar
7. Exner, H.E., Int. Met. Rev. 17 (1972) 25 10.1179/095066072790137729Google Scholar
8. Ashby, M.F. and Ebeling, R., Trans. A.I.M.E. 236 (1966) 1396 Google Scholar
9. Kear, B.H., Holiday, P.R. and Cox, A.R., “Rapid Solidification Technology”, ASM, (1983) p.66Google Scholar
10. Hirth, J.P., Met. Trans. A 9A (1978) 401 10.1007/BF02646391Google Scholar