Additions of Ti, Y, Zr, and Mg lead to even distribution of particles of hardening phase (ZrO2, Al2O3, HfO2) in a Nichrome matrix (Kh20N80) in the production of cast composite material.
Additions of these elements lead to an increase in the microhardness of the dispersion-hardened composite, which is explained by the increase in the “assimilation“ of the hardening phase by the matrix and its more even distribution in the matrix.
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V. I. Nizhenko and V. N. Eremenko, “Role of surface phenomena in PM processes,” in: Surface Phenomena in Metallurgical Processes [in Russian], Metallurgizdat, Moscow (1963), p. 35.
I. P. Bardin Central Scientific-Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 35–36, November, 1975.
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Kireev, V.B., Abramov, O.V. & Abramov, I.V. Effect of Ti, Y, Zr, and Mg additions on the structure of ingots of dispersion-hardened nichrome. Met Sci Heat Treat 17, 941–942 (1975). https://doi.org/10.1007/BF00679384
- Composite Material
- Cast Composite Material