Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-10T19:54:58.339Z Has data issue: false hasContentIssue false
  • English
  • Français

Micro-pillar Compression of Ni-base Superalloy Single Crystals

Published online by Cambridge University Press:  23 January 2013

Kabir Arora ,
Kyosuke Kishida  and
Haruyuki Inui
Kabir Arora
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto, 606-8501 JAPAN
Kyosuke Kishida
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto, 606-8501 JAPAN
Haruyuki Inui
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto, 606-8501 JAPAN
Get access

Abstract

Micro-compression behavior of single crystalline Ni-base superalloy CMSX-4 has been studied especially focusing on a specimen size range comparable to the size of Ni3Al (γ’) precipitates of about 500 nm using square cross-section micro-pillar specimens. The variation in stress levels exhibited a considerable increase for smaller micro-pillar specimens with edge lengths below 2 μm. Shearing of both the Ni (γ) channels and the γ’ precipitates was observed indicating that stress levels were significant enough to cause the dislocations to cut into the γ’ precipitates at room temperatures.

Keywords

stress/strain relationshipstrengthmicrostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1516: Symposium JJ – Intermetallic-Based Alloys—Science, Technology and Applications , 2013 , pp. 209 - 214
Copyright
Copyright © Materials Research Society 2013 

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

Dimiduk, D.M., Uchic, M.D. and Parthasarathy, T.A., Acta Mater., 53, 4065 (2005).CrossRefGoogle Scholar
Dimiduk, D.M., Uchic, M.D., Rao, S.I., Shade, P.A., Woddward, C., Viswanathan, G.B., Nadgorny, E.M., Polasik, S., Norfleet, D.M. and Mills, M.J., Philos. Mag. (2012) in press. Google Scholar
Uchic, M.D. and Dimiduk, D.M., Mater. Sci. Eng. A, 400-401, 268 (2005).10.1016/j.msea.2005.03.082CrossRefGoogle Scholar
Shade, P.A., Uchic, M.D., Dimiduk, D.M., Viswanathan, G.B., Wheeler, R. and Fraser, H.L., Mater. Sci. Eng. A, 535, 53 (2012).10.1016/j.msea.2011.12.041CrossRefGoogle Scholar
Pollock, T.M. and Argon, A.S., Acta Metall. Mater., 42, 1859 (1994).CrossRefGoogle Scholar
Nabarro, F.R.N., Metall. Mater. Trans. A, 27A, 513 (1996).CrossRefGoogle Scholar
Rao, S. I., Dimiduk, D.M., Parthasarathy, T.A., Uchic, M.D., Tang, M. and Woodward, C., Acta Mater., 56, 3245 (2008).10.1016/j.actamat.2008.03.011CrossRefGoogle Scholar