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Development of Technology to Obtain Pore-Free Powder Metallurgy Alloys of the Nickel-Molybdenum System

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Abstract

Alloys of the Ni ― Mo system are distinguished by high strength and corrosion resistance in numerous acidic solutions. However their deformability in hot working is low, which is connected with structural inhomogeneity. A method for obtaining such alloys from mixtures of nickel and molybdenum powders is proposed. Methods for protecting compacts during hot working, and the basic conditions for heat treatment and hot extrusion are given. The mechanical properties of prepared alloys were determined, and their microstructures investigated. The techniques developed can be used to produce a nickel-molybdenum alloy in the form of a practically homogeneous solid solution with high strength and ductility.

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References

  1. G. P. Bloshchinskii and A. K. Tsar'kov, “Features of the hot pressing of difficultly deformable nickel-based alloys,” Vcesoyuznaya Nauchno-Tekhnicheskaya Konferentsiya “Problemy Povysheniya Éffectivnosti Proizvodstva i Kachestva Trub,” Tez. Dokl., Dnepropetrovsk (1978), p. 82.

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  3. I. I. Ivanova, A. M. Demidik, and A. A. Sotnik, “Activation of alloy formation in two-component powder metallurgy systems in the process of hot deformation,” Poroshk. Metall., Nos. 3–4, 58–64 (2001).

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Authors and Affiliations

  1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, Kiev 142, 03142, Ukraine

    Irina I. Ivanova

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  1. Irina I. Ivanova
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Ivanova, I.I. Development of Technology to Obtain Pore-Free Powder Metallurgy Alloys of the Nickel-Molybdenum System. Powder Metallurgy and Metal Ceramics 40, 242–246 (2001). https://doi.org/10.1023/A:1012897214501

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  • DOI: https://doi.org/10.1023/A:1012897214501

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