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https://open.uns.ac.rs/handle/123456789/1801
Title: | Generation of a layer of severe plastic deformation near friction surfaces in upsetting of steel specimens | Authors: | Alexandrov S. Šidjanin L. Vilotić, Dragana Movrin, Dejan Lang L. |
Issue Date: | 19-Jan-2018 | Journal: | Metals | Abstract: | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. Narrow layers of severe plastic deformation are often generated near frictional interfaces in deformation processes as a result of shear deformation caused by friction. This results in material behavior that is very different from that encountered in conventional tests. To develop models capable of predicting the behavior of material near frictional surfaces, it is necessary to design and carry out tests that account for typical features of deformation processes in a narrow sub-surface layer. In the present paper, upsetting of steel specimens between conical and flat dies is used as such a test. The objective of the paper is to correlate the thickness of the layer of severe plastic deformation generated near the friction surface and the die angle using a new criterion for determining the boundary between the layer of severe plastic deformation and the bulk. | URI: | https://open.uns.ac.rs/handle/123456789/1801 | DOI: | 10.3390/met8010071 |
Appears in Collections: | FTN Publikacije/Publications |
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