Deformation behavior of 42CrMo4 over a wide range of temperatures and strain rates in Split-Hopkinson pressure bar tests
| Autor: | Florian Wöste, Janis S. Kimm, Jim A. Bergmann, Werner Theisen, Petra Wiederkehr, Fabian Pöhl |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mechanical Engineering technology industry and agriculture Split-Hopkinson pressure bar Strain rate Deformation (meteorology) Nanoindentation Condensed Matter Physics Microstructure Indentation hardness Mechanics of Materials General Materials Science Composite material Electron backscatter diffraction Bar (unit) |
| Zdroj: | Materials Science and Engineering: A. 826:141953 |
| ISSN: | 0921-5093 |
| DOI: | 10.1016/j.msea.2021.141953 |
| Popis: | In this research, Split-Hopkinson pressure bar tests were performed on samples made from the quenched and tempered steel 42CrMo4 in four different heat-treatment conditions. These samples were subjected to four different pressures and five different temperatures while deforming the samples at strain rates in the range of 103 s−1. Stress-strain curves and the strain rate were computed from the measured signals. The polished cross-sections of the samples were analyzed before and after testing by means of SEM, EBSD, nanoindentation, and microhardness testing. A variety of deformation characteristics were identified and correlated with the pre-test and post-test microstructure. This work focusses on the influence of the microstructure on deformation and provides a detailed understanding on the deformation of the 42CrMo4 steel over a wide range of parameter values. |
| Databáze: | OpenAIRE |
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