Processing and Mechanical Properties of RuAl-Based Alloys


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Alloys of Ru-Al-Cr with compositions between Ru-10Al-35Cr and Ru-3Al-39Cr (at.%) were directionally solidified and heat treated to produce single phase hcp-Ru(Cr,Al) and two phase B2-hcp microstructures. The room temperature fracture toughness, tensile behavior, and cyclic oxidation behavior at 1100°C were investigated and compared to previous results measured from RuAl and Ru-Al-Mo alloys. For microstructures consisting of a Ru(Cr,Al) matrix with fine RuAl precipitate, a good room temperature fracture toughness, tensile ductility, and oxidation resistance at 1100°C were measured.



Materials Science Forum (Volumes 539-543)

Main Theme:

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran




T.D. Reynolds et al., "Processing and Mechanical Properties of RuAl-Based Alloys", Materials Science Forum, Vols. 539-543, pp. 1469-1474, 2007

Online since:

March 2007




[1] R.L. Fleischer, R.J. Zabala: Met Trans A Vol. 21A (1990) p.2709.

[2] Todd Reynolds and David Johnson: Intermetallics Vol1 2 (2004), pp.157-164.

[3] W.F. Brown, J.E. Srwaley: ASTM Special Publication No. 410, (ASTM, Philadelphia, PA, 1966), p.13.

[4] K.S. Chan, and D.L. Davidson: Met and Mater Trans A Vol. 32A (2001), p.2717.

[5] P. Panfilo, and A. Yermakov: Platinum Metal Review Vol. 38 (1994), p.12.

[6] D.B. Snow, and J.F. Breedis JF: Acta Metallurgica Vol. 22 (1974), p.419.

[7] M.G. Manzon, and J.Z. Briggs: Less-common alloys of Molybdenum, Climax Molybdenum Co., 1962, p.124.