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Material Characterization Based on Deep Rolling Utilizing Process Dependent Descriptors

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Abstract

Deep rolling is widely applied to plastically deform specimens. The resulting plastic deformation depends on the process parameters and on the material properties of the deformed parts. As the material properties depend e.g. on the microstructure, within this work deep rolling is used to gain information about the influence of the microstructure on the plastic deformation. Therefore, fast and easily determinable material-specific variables, so called descriptors, are determined. The examination of macro samples with different heat treatments shows an influence of the workpiece hardness and a smaller change due to the different microstructures. Considering equivalent stresses, a process parameter independent analysis was performed. The descriptors determined for macro and additionally processed micro samples showed a progressive trend, which is why a scaling from macro to micro descriptors within the framework of subsequent work is conceivable.

Keywords

Deformation Material Surface analysis 
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Notes

Acknowledgement

Financial support of the subproject U04 ‘Mechanical Treatment’ of the Collaborative Research Center SFB 1232 “Farbige Zustände” by the German Research Foundation (DFG) is gratefully acknowledged.

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Leibniz Institute for Materials Engineering IWTBremenGermany
  2. 2.MAPEX Center for Materials and ProcessesUniversity of BremenBremenGermany

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