Určení obsahu zbytkového austenitu v jemnozrnné indukčně zušlechtěné pručinové oceli
| Autor: | Petr Král, Přemysl Beran, Anna Olina, Charles Hervoches, Jiří Pechoušek, Martin Petrenec, Miroslav Piska |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
zbytkový austenite Neutron diffraction neutronová difrakce 02 engineering and technology Plasticity 01 natural sciences Article Spring steel neutron diffraction tepelné zpracování Phase (matter) 0103 physical sciences General Materials Science Surface layer Mössbauera spektroscopie 010302 applied physics Austenite retained austenite heat treatment Mössbauer spectroscopy Metallurgy pružinová ocell 021001 nanoscience & nanotechnology Martensite 0210 nano-technology spring steel Electron backscatter diffraction |
| Zdroj: | Materials Volume 12 Issue 24 Materials . 2019, vol. 12, issue 24, p. 1-17. |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma12244063 |
| Popis: | Advanced thermomechanical hot rolling is becoming a widely used technology for the production of fine-grained spring steel. Different rapid phase transformations during the inductive heat treatment of such steel causes the inhomogeneous mixture of martensitic, bainitic, and austenitic phases that affects the service properties of the steel. An important task is to assess the amount of retained austenite and its distribution over the cross-section of the inductive quenched and tempered wire in order to evaluate the mechanical properties of the material. Three different analytical methods were used for the comparative quantitative assessment of the amount of retained austenite in both the core and rim areas of the sample cross-section: neutron diffraction&mdash for the bulk of the material, Mö ssbauer spectroscopy&mdash for measurement in a surface layer, and the metallographic investigations carried by the EBSD. The methods confirmed the excessive amount of retained austenite in the core area that could negatively affect the plasticity of the material. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|