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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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Zenk, Christopher H.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2025High strain rate persistence of the strength anomaly in the L12 intermetallic compound Ni3Si evidenced by nanoindentation testingcitations
- 2024A Novel Approach for Rapid Material Library Generation Using Laser‐Remeltingcitations
- 2024Improving Microstructural Homogeneity of Investment‐Cast Single‐Crystalline Ni‐Base Superalloys by Using Fluidized Carbon Bed Cooling
- 2023Influence of the γ′ Volume Fraction on the High-Temperature Strength of Single Crystalline Co–Al–W–Ta Superalloyscitations
- 2023Influence of Cu Addition and Microstructural Configuration on the Creep Resistance and Mechanical Properties of an Fe‐Based α/α′/α″ Superalloycitations
- 2022Miniature mechanical testing of LMD-fabricated compositionally & microstructurally graded γ titanium aluminidescitations
- 2021Improving the Effectiveness of the Solid-Solution-Strengthening Elements Mo, Re, Ru and W in Single-Crystalline Nickel-Based Superalloyscitations
- 2021Creep Behavior of Compact γ′-γ″ Coprecipitation Strengthened IN718-Variant Superalloycitations
- 2018Systematische Untersuchungen zum Einfluss wichtiger Legierungselemente in Co-Basis und Co/Ni-Basis Superlegierungen: Thermophysikalische und mechanische Eigenschaften ; A systematic study on the influence of key alloying elements in Co-base and Co/Ni-base superalloys: Thermo-physical and mechanical properties
- 2016Microstructure, Lattice Misfit, and High-Temperature Strength of gamma '-Strengthened Co-Al-W-Ge Model Superalloyscitations
- 2016Intermediate Co/Ni-base model superalloys - Thermophysical properties, creep and oxidationcitations
- 2015Microsegregation and precipitates of an as-cast Co-based superalloycitations
- 2014Microstructure and mechanical properties of Cr-Ta-Si Laves phase-based alloys at elevated temperaturescitations
- 2014Elemental partitioning and mechanical properties of Ti- and Ta-containing Co-Al-W-base superalloys studied by atom probe tomography and nanoindentationcitations
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article
Influence of Cu Addition and Microstructural Configuration on the Creep Resistance and Mechanical Properties of an Fe‐Based α/α′/α″ Superalloy
Abstract
<jats:sec><jats:label /><jats:p>Introducing Cu nanoparticles is an effective mechanism for strengthening and toughening Fe‐based materials such as ultra‐high‐strength steels. Herein, the effect of Cu on the mechanical properties of a novel Fe‐based α/α′/α″ superalloy is studied. Compared to a Cu‐free reference alloy, nanoindentation reveals an increase in hardness, which was associated with the formation of Cu nanoparticles. Both alloys show room temperature (RT) compressive plastic strain at maximum stress greater than 8%, irrespective of the heat‐treatment. At RT and at 750 °C, the Cu‐containing alloy exhibits a slightly higher strength, but the heat treatment has a more significant impact: A configuration of α‐matrix and intermetallic α′/α″‐phases forming an interpenetrating network is superior to a state with isolated precipitates. This difference vanishes in monotonic creep experiments, and under the same conditions, the Cu‐containing alloy exhibits a twice as high creep rate despite a slightly higher precipitate fraction. This is linked to a higher lattice misfit and faster‐coarsening kinetics. Post‐mortem transmission electron microscopy analysis of the creep‐deformed specimens identifies dislocation bypass as the dominant deformation mechanism. However, the presence of <010>{110} dislocations in the interfacial networks and evidence of dislocation activity within α′/α″ precipitates suggest the occurrence of shearing events.</jats:p></jats:sec>