Abstract
We studied the properties of ZrCr2 intermetallic compound without crystallization cracks, obtained due to the introduction of excess zirconium (up to 2 at. %) with respect to the stoichiometric composition into the alloy. The melt was poured in a copper chill mold, and specimens for mechanical compression tests within the temperature range 900–1300°C were cut out of the castings. The short-term strength of intermetallic compound was σu = 665 and 140 MPa, and fracture took place mainly along the grain boundaries: below 1100°C, it was brittle, but, at higher temperatures (1200–1300°C), the plastic strain reached 5–7% prior to crack initiation and almost 30% before fracture. Plastic deformation is not accompanied by hardening. In the case of transcrystalline fracture, its type can be attributed to “venous,” which is characteristic of amorphous metallic materials.
Similar content being viewed by others
REFERENCES
"Zr-Cr phase diagram," J. Phase Equilibr., 14, No. 6, 768 (1993).
W. G. Burgers, "The process of transition of the body-centered cubic modification into the hexagonal close-packed modification of zirconium," Physica,1, 561–570 (1934).
A. N. Rakitskii, T. L. Kuznetsova, and I. L. Yakimenko, "Specific features of the melting and control of the crystallization mode of castings of high purity, homogeneity, and plasticity made of chrome alloys," in: Abstr. Int. Conf. "Materials and Coatings for Extreme Environments "(Katsiveli, Crimea, 2000), Katsiveli (2000), p. 101.
V. A. Pisarenko, Y. E. Zubets, A. V. Sameluk, and S. N. Dub, "Research of diffusion mobility on the interface between elements of system Cr-Ti (Zr, Hf) at the temperature 1373-1473 K," in: Proc. Int. Conf. "Science for Materials in the Frontier of Centu-ries: Advantages and Challenges "[in Ukrainian], (Kiev, November 4-8, 2002), Kiev (2002), pp. 541–542.
N. I. Portnoi, B. N. Babich, and I. L. Svetlov, Nickel-Base Composite Materials [in Russian], Metallurgiya, Moscow (1979).
A. N. Rakitskii, V. A. Pisarenko, N. P. Brodnikovsky, and A. V. Sameluk, "Mechanical properties of Cr-Re alloys at high tem-peratures," in: B. D. Bryskin (editor), Proc. Int. Sympos. on Rhenium and Rhenium Alloys,TMS Minerals, Metals and Materials Soc., Orlando, Fla. (1997), pp. 551–556.
J. J. Gilman and H. J. Leamy (editors), Metallic Glasses,Am. Soc. Met., Metals Park, Ohio (1978).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Pysarenko, V.O., Kuznetsova, T.L. & Samelyuk, A.V. Structure and Mechanical Properties of ZrCr2 Intermetallic Compound within the Temperature Range 20–1300°C. Materials Science 40, 83–88 (2004). https://doi.org/10.1023/B:MASC.0000042789.68261.b8
Issue Date:
DOI: https://doi.org/10.1023/B:MASC.0000042789.68261.b8