NiTiHf and NiAI have shown the potential for development as high temperature shape memory alloys with transformation temperatures of 150°C or higher. However, various engineering considerations must be addressed before these systems can be used as practical high temperature shape memory alloys. These considerations include: fabricability, phase stability, mechanical stability, and cost. NiTiHf is attractive from a cost standpoint, although its fabricability must still be demonstrated on larger heats of material. The phase stability and mechanical stability of NiTiHf are unknown. NiAI requires great improvements in both fabricability and phase stability. The mechanical stability and costs for producing NiAI shape memory alloys are still unclear.
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D. N. AbuJudom II, P. E. Thoma, M-Y Kao, and D. R. Angst, United States Patent Number 5,114,504 (1992).
K. Enami and S. Nenno, Met. Trans., 2, 1487 (1971).
J. L. Smialek and R. F. Heheman, Met. Trans., 4, 1571 (1973).
S. M. Russell, C. C. Law, M. J. Blackburn, P. C. Clapp, and D. M. Pease, “Lightweight Disk Alloy Development,” Air Force Report WRDC-TR-90-4125 (1991).
S. M. Tuominen and J. Biermann, United States Patent Number 4,865,663 (1989).
S. M. Tuominen, in the Proceedings of the SMST Conference, Pacific Grove, CA, March 1994, to be published.
D. B. Miracle, Acta Metall. Mater., 41, 649 (1993).
R. Darolia, J. Metals, 43, 44 (1991).
C. C. Law and M. J. Blackburn, “Rapidly Solidified Lightweight Durable Disk Material,” Final Technical Air Force Report, F33615-84-C-5067 (1987).
S. Guha, I. Baker, P. R. Munroe, and J. R. Michael, Mat. Sci. and Eng., A152, 258 (1992).
E. M. Schulson and D. R. Barker, Scripta Met., 17, 519 (1983).
K. Vedula, K. H. Hahn and B. Boulogne, Mat. Res. Soc. Symp. Proc., 133, 299 (1989).
M. H. Wu (private communication).
P. Nash, M. F. Singleton and J. L. Murray, in Phase Diagrams of Binary Nickel Alloys, edited by P. Nash, Vol. 1 (ASM International, Metals Park, Ohio, 1991).
P. S. Khadkikar, I. E. Locci, K. Vedula, and G. M. Michal, Met. Trans. A, 24A, 83 (1993).
S. M. Russell, “The Effects of Alloying on the Phase Stability of NiAI,” Masters Thesis, University of Connecticut, to be published.
D. G. Pettifor, New Scientist, 48 (May 29, 1986).
P. R. Strutt and B. H. Kear, Mat. Res. Soc. Symp. Proc., 39, 279 (1985).
K. Vedula, V. Pathare, I. Aslanidis, and R. H. Titran, Mat. Res. Soc. Symp. Proc., 39,411 (1985).
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Russell, S.M., Sczerzenie, F. Engineering Considerations in the Application of NiTiHf and NiAI as Practical High-Temperature Shape Memory Alloys. MRS Online Proceedings Library 360, 455–460 (1994). https://doi.org/10.1557/PROC-360-455