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Soviet Physics Journal

, Volume 16, Issue 7, pp 933–937 | Cite as

Study of disordering processes in a copper-palladium alloy

  • V. V. Sanadze
  • M. V. Dzhibuti
Article

Abstract

Disordering processes in aCu-40 at.% Pd alloy are studied by the method of successive quenching. For analyzing the transformations, measurements of electrical resistance and microhardness are supplemented by x-ray diffraction. For certain quench temperatures the ordered and disordered phases are present at the same time. On increasing the quench temperature the amount of ordered phase is reduced; the crystal lattice constants of the main and precipitated phases nevertheless remain constant within the limits of experimental error. During the transformation the microhardness diminishes and the electrical resistance increases, constant values being reached at a quench temperature of 760‡C, at which the alloy is completely disordered. The transition from the ordered to the disordered state occurs without the formation of any intermediate metastable phases. An x-ray diffraction analysis of the alloy reveals the orientational relationship between the matrix and precipitated phases. Experiments indicate the following mutual directions [001] bcc ∥[110]fcc and [110] bcc ∥[111]fcc.

Keywords

Crystal Lattice Diffraction Analysis Lattice Constant Experimental Error Metastable Phasis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. 1.
    V. V. Sanadze and G. V. Gulyaev, Kristallografiya,4, No. 4, 526 (1959).Google Scholar
  2. 2.
    V. V. Sanadze and G. V. Gulyaev, Kristallografiya,4, No. 5, 687 (1959).Google Scholar
  3. 3.
    V. V. Sanadze and N. I. Labartkava, Strukturnaya Khimiya,2, No. 6, 703 (1961).Google Scholar
  4. 4.
    M. Hansen and K. Anderko, Constitution of Binary Alloys, Vol. 2, [Russian translation] (1962), p. 655.Google Scholar
  5. 5.
    A. A. Rudnitskii, Izvest. Sekbora Platiny, 27, 277 (1952).Google Scholar
  6. 6.
    F. E. Jaumot and A. Sawatzky, Acta Met.,4, 118–114(1956).Google Scholar

Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • V. V. Sanadze
    • 1
  • M. V. Dzhibuti
    • 1
  1. 1.V. I. Lenin Gruzinskii Polytechnic InstituteUSSR

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