Ultrafine bainitic steel produced through ausforming-quenching process
| Autor: | Ya-ping Fan, Haiyang Guo, Xianying Feng, Qiang Li |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Materials science Tensile properties Bainite Ausforming Prior martensite 02 engineering and technology 01 natural sciences Isothermal process Biomaterials Bainite transformation 0103 physical sciences Ultimate tensile strength lcsh:Mining engineering. Metallurgy 010302 applied physics Quenching Austenite Metallurgy Metals and Alloys 021001 nanoscience & nanotechnology Microstructure Surfaces Coatings and Films Ultrafine bainitic steel Ceramics and Composites 0210 nano-technology Austempering |
| Zdroj: | Journal of Materials Research and Technology, Vol 9, Iss 3, Pp 3659-3663 (2020) |
| ISSN: | 2238-7854 |
| DOI: | 10.1016/j.jmrt.2020.01.103 |
| Popis: | The coupling effects of ausforming and quenching process on isothermal bainite transformation behaviors, microstructures and mechanical properties of ultrafine bainitic steel have been analyzed. The synergism of ausforming and prior martensite transformation not only significantly accelerates subsequent bainite transformation, but also effectively refines bainite laths and greatly reduces the size of harmful blocky retained austenite, providing an improved transformation induced plasticity effect. Ultimate tensile strength of 2000 MPa and total elongation of 24% can be achieved in ultrafine bainitic steel by ausforming-quenching process and austempering at 300 °C for 1 h. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|