Conclusions
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1.
The experimental evidence shown suggests a close analogy between various anomalies observed in the initial deformation stage. It thus appears that all these effects are due to a single cause (deformation mechanism).
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2.
In its early stages plastic deformation of polycrystalline metals consists mainly of intergranular displacements which are replaced later by slip.
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3.
With increasing purity and grain size, the intergranular deformation processes are superseded by slip at smaller strains.
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4.
In pure and coarse-grained metals which undergo deformation by intracrystalline slip almost from the beginning, these anomalies vanish or are found at very small strains only.
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Rauzin, Y.R. Certain anomalies of the early stage of plastic deformation. Met Sci Heat Treat 1, 27–32 (1959). https://doi.org/10.1007/BF00813840
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DOI: https://doi.org/10.1007/BF00813840