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Effect of the form of the stressed condition on the character of distribution of the microdeformations in metals
Authors:L V Kuksa  B I Koval'chuk  A A Lebedev  V I Él'manovich
Affiliation:(1) Institute of Plasma Physics and Laser Microfusion, ul. Hery 23, 00-908 Warsaw, Poland;(2) Institute of Theoretical and Experimental Physics, ul. B. Cheremushkinskaya-25, , 117218 Moscow, Russia;(3) Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie gory 1, bld. 3, 119899 Moscow, Russia
Abstract:
1.  The use of the method developed for determining the main deformations of microvolumes makes it possible to investigate peculiarities of metal deformation in microareas and the actual level of micrononuniform deformation, taking into consideration the form of stressed condition
2.  A definite character of distribution of the main deformations across microareas, reflecting not only the influence of the form of stressed condition of the macrovolume of a sample, but also the peculiarities of interaction of individual microvolumes which are found in stress deformed conditions differing from the stress deformed condition of the individual body, corresponds to each form of stressed condition. For complex loading a change in the form of distributions of deformations in changing from one form of loading to another is characteristic.
3.  In the plane stressed condition under conditions of simple and complex loading there is intense slip formation accompanied by activation of a larger number of slip systems than in uniaxial loading, which is an indication of the more complex deformation conditions of individual microvolumes.
4.  Differences in the distribution of main deformations across microareas, nonuniformity of the stress deformed conditions of microvolumes, and peculiarities of the character of slip formation undoubtedly play a major role in the formation of mechanical properties in the given forms of stressed condition and methods of complex loading.
Keywords:
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