| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Birosca, Soran
University of Portsmouth
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Probing the temperature field and residual stress transformation in multi-track, multi-layered systemcitations
- 2024The corrosion mechanism of grey cast-iron yacht keel in marine environment during long-term exposure
- 2023A study of high cycle fatigue life and its correlation with microstructural parameters in IN713C nickel-based superalloycitations
- 2021Crystallographic orientation influence on slip system activation and deformation mechanisms in Waspaloy during in-situ mechanical loadingcitations
- 2020Mechanistic approach of Goss abnormal grain growth in electrical steelcitations
- 2020The effects of grain size, dendritic structure and crystallographic orientation on fatigue crack propagation in IN713C nickel-based superalloycitations
- 2020On the correlation between magnetic domain and crystallographic grain orientation in grain oriented electrical steelscitations
- 2019Crystallographic orientation relationship with geometrically necessary dislocation accumulation during high-temperature deformation in RR1000 nickel-based superalloycitations
- 2019The dislocation behaviour and GND development in a nickel based superalloy during creepcitations
- 2018The effects of microstructure and microtexture generated during solidification on deformation micromechanism in IN713C nickel-based superalloycitations
- 2018A study of low cycle fatigue life and its correlation with microstructural parameters in IN713C nickel based superalloycitations
- 2017Microstructural mechanisms and advanced characterization of long and small fatigue crack growth in cast A356-T61 aluminum alloyscitations
- 2017The Effect of a Two-Stage Heat-Treatment on the Microstructural and Mechanical Properties of a Maraging Steel.
- 2017The effect of a two-stage heat-treatment on the microstructural and mechanical properties of a maraging steelcitations
- 2016The effect of strain distribution on microstructural developments during forging in a newly developed nickel base superalloycitations
- 2016The hierarchy of microstructure parameters affecting the tensile ductility in centrifugally cast and forged Ti-834 alloy during high temperature exposure in aircitations
- 2016Deformation mechanisms of IN713C nickel based superalloy during Small Punch Testingcitations
- 2015Nanostructure characterisation of flow-formed Cr-Mo-V steel using transmission Kikuchi diffraction techniquecitations
- 2011A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weldcitations
- 20113-D observations of short fatigue crack interaction with lamellar and duplex microstructures in a two-phase titanium alloycitations
- 20093D characterisation of short fatigue crack in Ti 6246
- 2009Three-dimensional characterization of fatigue cracks in Ti-6246 using X-ray tomography and electron backscatter diffractioncitations
- 2008Texture evolution in grain-oriented electrical steel during hot band annealing and cold rollingcitations
- 2007Influence of Normalizing Conditions on Electrical Steel Texture Development
- 2005Phase identification of oxide scale on low carbon steelcitations
- 2005Phase determination and microstructure of oxide scales formed on steel at high temperaturecitations
Places of action
| Organizations | Location | People |
|---|
article
3-D observations of short fatigue crack interaction with lamellar and duplex microstructures in a two-phase titanium alloy
Abstract
cited By 25 ; International audience ; In situ observations of short crack growth in powder-processed Ti-6246 have been undertaken using synchrotron X-ray microtomography to investigate crack tip interaction with microstructure. Together with post-mortem analysis using electron backscatter diffraction (EBSD), it was possible to identify a number of microstructural features that affect crack propagation rates by causing crack bifurcation, crack bridging and crack deflection. Three samples with different microstructures were tested in this way: lamellar, duplex and a heterogeneous microstructure that showed regions of lamellar and duplex microstructure. The in situ fatigue experiments were carried out with a maximum stress of 410 MPa and R = 0.1. The three microstructures showed significantly different short crack propagation rates, with the lamellar microstructure displaying the fastest and the duplex microstructure the slowest rate. It was found that the lamellar microstructure develops a deeper crack than the duplex microstructure that is related to significant crack bifurcation taking place near the surface region in the lamellar but not duplex microstructure. It was also found that a columnar lamellar microstructure creates a relatively smooth crack front while a basket-weave-type microstructure forces the crack tip to undulate on the lath width scale. Crack bridging of the fine lamellar region of the duplex microstructure was observed, which seems to hinder significant crack bifurcation to occur, but still provides improved crack growth resistance that explains the low crack propagation rate. In the third microstructure the crack tended to grow slightly asymmetrically due to the heterogeneous nature of the microstructure, resulting in the intermediate growth rate. EBSD grain orientation and Schmid factor analysis of regions including the crack revealed that the crack path is strongly influenced by the crystallographic orientation of the α lamellae and grains. While in the lamellar microstructure the crack ...