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Author |
|
| Name | Avendaño Rodríguez, Diego Fernando |
| Research field | Materials engineering |
| Career stage | doctoral researcher |
| Home university/institution | Universidad Nacional de Colombia |
| Department/Research unit at home university/institution | Departamento de Ingeniería Mecánica y Mecatrónica |
| Chair/Working group at home institution | INNOVACIÓN EN PROCESOS DE MANUFACTURA E INGENIERÍA DE MATERIALES (IPMIM) |
International activity |
|
| Country | Germany |
| Location | Bochum |
| University | Ruhr-Universität Bochum (RUB) |
| Fund Research School | PhD-Exchange |
| Type of activity | field research |
| Period |
starts 01-03-2018 ends 31-12-2018 |
| Keywords | Dual Phase Steel, EBSD, Nanoindentation, Fracture toughness, Crack Growth |
| Report |
Study of the damage on the microstructure near the fracture zone of tensile specimens of DP steels - EBSD and Nanoindentation techniques: Activities: o Fracture mechanisms identification through EBDS maps (IPF, KAM, GAM, GOS). o Measure of damage through nanoindentation from the fracture zone up to 15 mm, each two millimeters (strain level). Three indentation grids inside a specific strain level zone. o EBDS and nanoindentation samples applicability: 12 tensile and cyclic load and unload test samples. As-received and heat treated samples. Study of the damage on the microstructure near the crack tip of toughness specimens of DP steels - EBSD techniques - Crack Tip Plastic Zone analysis - Deformation effect. Activities: o Crack Tip Plastic Zone Size. EBDS maps (IPF, KAM, GAM, GOS). o Crack path. EBDS maps (IPF, KAM, GAM, GOS). o EBDS Specific sample applicability: 12 crack growth, as-received material samples. Heat treatment and as-received material samples. Material Characterization. Activities: o Composition: EDX/WDX, precise composition of the different phases. As-received material and heat treated samples. o Crystallographic structure: X-ray diffraction (XRD). o Dislocation and induced damage in the deformed samples: Transmission electron microscopy (TEM). |