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Hot Isostatic Consolidation of P/M Superalloys

Published online by Cambridge University Press:  21 February 2011

R.D. Kissinger ,
S.V. Nair  and
J.K. Tien
R.D. Kissinger
Affiliation:
Henry Krumb School of Mines, Columbia University, New York, NY 10027.
S.V. Nair
Affiliation:
Henry Krumb School of Mines, Columbia University, New York, NY 10027.
J.K. Tien
Affiliation:
Henry Krumb School of Mines, Columbia University, New York, NY 10027.
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Abstract

The kinetics of powder consolidation, or densification, and the powder morphological changes ocurring during hot isostatic pressing (HIP) are studied as a function of particle size distribution and hold time at HIP temperature for the nickel base superalloy RENE-95. In order to understand the extent of individual powder particle deformation during consolidation and its effect on subsequent prior particle boundaries (PPB), particle size distribution was studied as a variable. Particle size distributions studied include monosized (75–90 um), bimodal ( 75–90 um and 33–35 um) and commercial (<104 um) size distributions. The experimental results of HIP densification kinetics are compared with a newly developed analytical deformation mechanism model for HIP consolidaiton which takes into account the effect of a distribution of particle sizes on the kinetics of densification.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 28: Symposium F – Rapidly Solidified Metastable Materials , 1983 , 157
Copyright
Copyright © Materials Research Society 1984

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References

REFERENCES

1. Moskowitz, L.N., Pelloux, R.M. and Grant, N., Superalloys-- Processing, Proc. Second Int. Symp. on Superalloys, MCIC Report 72–10, 1972, p. 2.Google Scholar
2. Larson, J.M., Mod. Dev. in Powder Metall., 8, 537 (1974).Google Scholar
3. Aubin, C., Davidson, J.H. and Trottier, J.P., Superalloys 1980, Proc. Fourth Int. Symp. on Superalloys, Tien, J.K., Wlodek, S.T., Morrow, H. III, Gell, M. and Maurer, G.E., eds., ASM, Metals Park, OH, 1980, p.345.10.7449/1980/Superalloys_1980_345_354Google Scholar
4. Wilkinson, D.S. and Ashby, M.F., Acta Metall., 23, 1277 (1975).10.1016/0001-6160(75)90136-4Google Scholar
5. Coble, R.L., Powder Metall. Int., 10, 128 (1978).Google Scholar
6. Nair, S.V. and Tien, J.K., to be published.Google Scholar
7. Arzt, E., Ashby, M.F. and Easterling, K., Met. Trans. A, 14A, 211 (1983).10.1007/BF02651618Google Scholar
8. Molerus, O., Powder Tech., 12, 259 (1975).10.1016/0032-5910(75)85025-XGoogle Scholar
9. Percus, J.K. and Yevik, G.J., Phys. Rev., 110, 1 (1957).10.1103/PhysRev.110.1Google Scholar
10. Lebowitz, J.L., Phys. Rev., 133, A895 (1964).10.1103/PhysRev.133.A895Google Scholar
11. Cox, A.R. and van Reuth, E.C., Rapidly Ouenched Metals III, Proc. Third Int. Conf. on Rapidly Quenched Metals, Vol.2, Cantor, B., ed., The Metals Soc., 1978, p. 225.Google Scholar