Abstract
Investigations of the consolidation of metallic and alloy powders performed up to now have suggested the existence of several consolidation stages, which are dominated by different mechanisms1–7. Investigations of structural changes as a function of the pressing pressure have indicated different directions of structural changes (polymorphic transformation, evolution of a defect structure, amorphization) as a function of the applied pressure, pressing method, characteristics of the disperse system, i.e. starting powder 8–10. Establishment of a interdependence between the compact density and pressing pressure is of great importance, both from the phenomenological viewpoint and the fact that these dependencies are a direct consequence of changes at the material structure level. In literature, a great number of phenomenological pressing equations have been defined2,11,12. However, they are generally limited to a certain powder or consolidation stage. Characteristics of the starting powder (mean grain size and shape, the presence of an oxide film) have a significant influence on the consolidation course and structural changes.
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Janković, Z.M., Marinković, B.A. (1999). Generation of Dislocations During Cold Sintering of Iron Powder. In: Stojanović, B.D., Skorokhod, V.V., Nikolić, M.V. (eds) Advanced Science and Technology of Sintering. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-8666-5_78
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DOI: https://doi.org/10.1007/978-1-4419-8666-5_78
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