1300 K Compressive Properties of Directionally Solidified Ni-33Al-33Cr-1Mo

Abstract

The Ni-33Al-33Cr-1Mo eutectic has been directionally solidified by a modified Bridgeman technique at growth rates ranging from 7.6 to 508 mm/h to produce grain/cellular microstructures containing alternating plates of NiAl and Cr alloyed with Mo. The grains had sharp boundaries for slower growth rates (≤ 12.7 mm/h), while faster growth rates (≥ 25.4 mm/h) lead to cells bounded by intercellular regions. Compressive testing at 1300 K indicated that alloys DS'ed at rates between 25.4 to 254 mm/h possessed the best strengths which exceed that for the as-cast alloy.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    J. L. Walter and H. E. Cline, Metall. Trans., 1 (1970) 1221–1229.

    CAS  Article  Google Scholar 

  2. 2.

    D.R. Johnson, X.F. Chen, B.F. Oliver, R.D. Noebe and J.D. Whittenberger. Intermetallics 3 (1995) 99–113.

    CAS  Article  Google Scholar 

  3. 3.

    J. M. Yang, S. M. Jeng, K. Bain and R. A. Amato, Acta Mater., 45 (1997) 295–305.

    CAS  Article  Google Scholar 

  4. 4.

    J.D. Whittenberger, S.V. Raj, I.E. Locci and J.A. Salem. Intermetallics 7 (1999) 1159–1168.

    CAS  Article  Google Scholar 

  5. 5.

    J.D. Whittenberger, R.D. Noebe, D.R. Johnson and B.F. Oliver. Intermetallics 5 (1997) 173–184.

    CAS  Article  Google Scholar 

  6. 6.

    S. V. Raj, I. E. Locci and J. D. Whittenberger, Creep Behavior of Advanced Materials for the 21st Century (edited by R. S. Mishra, A. K. Mukherjee and K. Linga Murty), TMS, Warrendale PA, 1999, pp. 295–310.

  7. 7.

    S.V. Raj and I.E. Locci, “Microstructural Characterization of a Directionally Solidified Ni-33Al-31Cr-3Mo Eutectic Alloy as a fuction of Withdrawal Rate” submitted for publication.

  8. 8.

    H. E. Cline, J. L. Walter, E. Lifshin and R. R. Russell, Metall. Trans., 2 (1971) 189–194.

    CAS  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to J. Daniel Whittenberger.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Daniel Whittenberger, J., Raj, S. & Locci, I.E. 1300 K Compressive Properties of Directionally Solidified Ni-33Al-33Cr-1Mo. MRS Online Proceedings Library 646, 516–521 (2000). https://doi.org/10.1557/PROC-646-N6.9.1

Download citation