Microstructure investigation and flow behavior during thixoextrusion of M2 steel grade
| Autor: | Régis Bigot, Guochao Gu, Eric Becker, Laurent Langlois, Raphaël Pesci |
|---|---|
| Přispěvatelé: | Laboratoire de Conception Fabrication Commande (LCFC), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Université de Lorraine (UL), Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
0209 industrial biotechnology
Materials science Flow (psychology) Liquid phase Partial remelting 02 engineering and technology Industrial and Manufacturing Engineering 020901 industrial engineering & automation Differential scanning calorimetry Thixoextrusion Microstructure Material flow Liquid fraction Mécanique [Sciences de l'ingénieur] Metallurgy Metals and Alloys [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 021001 nanoscience & nanotechnology Grain size Computer Science Applications Homogeneous Modeling and Simulation Ceramics and Composites M2 steel grade 0210 nano-technology Low liquid fraction |
| Zdroj: | Journal of Materials Processing Technology Journal of Materials Processing Technology, Elsevier, 2015, 216, pp.178-187. ⟨10.1016/j.jmatprotec.2014.09.009⟩ |
| ISSN: | 0924-0136 |
| Popis: | The microstructure investigation and flow behavior during thixoforging of M2 steel parts were investigated. Partial remelting was performed at processing temperatures ranging from 1290 ◦C to 1340 ◦C corresponding to a liquid fraction range between 10% and 30% (according to differential scanning calorimetry measurements and quantitative image analyses). A conventional microstructure for thixoforming process was obtained: spherical solid grains surrounded by liquid phase. The microstructure across the heated billets was relatively homogeneous with bigger grain size near the surface. Successful thixoextrusion for producing parts was finally achieved at processing temperatures. By investigating the microstructure and load-displacement curves, different mechanisms in various forming stages were proposed.; International audience; The microstructure investigation and flow behavior during thixoforging of M2 steel parts were investigated. Partial remelting was performed at processing temperatures ranging from 1290 ◦C to 1340 ◦C corresponding to a liquid fraction range between 10% and 30% (according to differential scanning calorimetry measurements and quantitative image analyses). A conventional microstructure for thixoforming process was obtained: spherical solid grains surrounded by liquid phase. The microstructure across the heated billets was relatively homogeneous with bigger grain size near the surface. Successful thixoextrusion for producing parts was finally achieved at processing temperatures. By investigating the microstructure and load-displacement curves, different mechanisms in various forming stages were proposed. |
| Databáze: | OpenAIRE |
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