| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pallaspuro, Sakari
University of Oulu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Mitigating hydrogen embrittlement via film-like retained austenite in 2 GPa direct-quenched and partitioned martensitic steelscitations
- 2024Stress Intensity Range Dependent Slowing Down of Fatigue Crack Growth under Strain‐Induced Martensitic Transformation of Film‐Like Retained Austenite
- 2024Role of prior austenite grain structure in hydrogen diffusion, trapping, and embrittlement mechanisms in as-quenched martensitic steelscitations
- 2023High-stress abrasive wear performance of medium-carbon direct-quenched and partitioned, carbide-free bainitic, and martensitic steelscitations
- 2023A combined 3D-atomic/nanoscale comprehension and ab initio computation of iron carbide structures tailored in Q&P steels via Si alloyingcitations
- 2023Influence of prior austenite grain structure on hydrogen-induced fracture in as-quenched martensitic steelscitations
- 2023Microstructure-based cleavage parameters in bainitic, martensitic, and ferritic steelscitations
- 2023Microstructure-based cleavage parameters in bainitic, martensitic, and ferritic steelscitations
- 2022Effect of prior austenite grain morphology on hydrogen embrittlement behaviour under plastic straining in as-quenched 500 HBW steelscitations
- 2020Hydrogen-Induced Cracking of 500 HBW Steels Studied Using a Novel Tuning-Fork Test with Integrated Loadcell Systemcitations
- 2020Hydrogen‐induced stress corrosion cracking studied by the novel tuning‐fork test methodcitations
- 2020Hydrogen-induced cracking of 500 HBW steels studied using a novel tuning-fork test with integrated loadcell systemcitations
- 2015Applicability of the Master Curve method to Ultra High Strength Steelscitations
Places of action
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article
Stress Intensity Range Dependent Slowing Down of Fatigue Crack Growth under Strain‐Induced Martensitic Transformation of Film‐Like Retained Austenite
Abstract
<jats:p>A clear understanding of strain‐induced martensitic transformation of filmy retained austenite (RA) near stable cracks is required. Literature shows RA transformation during fatigue crack growth (FCG) in steels containing blocky but not film‐like RA, as the latter is known to resist strain‐induced phase transformation. This work investigates the transformation in 0.2% C steel processed by direct quenching and partitioning (DQP) containing filmy and a small vol% of blocky RA and compares it with RA‐free direct quenched (DQ) steel. While the DQ steel is lath‐martensitic, DQP steel has 8.5 vol% film‐like RA evenly distributed between martensite laths. The experimental FCG rates are comparable for both steels in the lowregime but increasingly differing in the Paris regime, the Paris law exponent being lower for DQP (<jats:italic>n</jats:italic> = 2.1) compared to DQ (<jats:italic>n</jats:italic> = 2.5), confirming that resistance to FCG is dependent on the stress intensity range (). Moreover, RA content near crack surface decreases during crack growth from 7.5 vol% atof 25 MPa√m to 2.3 vol% atof 54 MPa√m. Results show that higher the stress intensity range in steels with film‐like RA, the higher the degree of RA transformation and more suppression of FCG rate.</jats:p>