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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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Schliephake, Daniel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2025Strategic alloy design and processing for improved mechanical response in the Mo-Si-Ti systemcitations
- 2024Strategic alloy design and processing for improved mechanical response in the Mo-Si-Ti system
- 2024Creep behavior of a precipitation-strengthened A2-B2 refractory high entropy alloy
- 2024Creep behavior and deformation mechanisms of precipitation-strengthened refractory high entropy alloys
- 2023Room and elevated temperature tensile and fatigue behaviour of additively manufactured Hastelloy Xcitations
- 2022Phase Continuity, Brittle to Ductile Transition Temperature, and Creep Behavior of a Eutectic Mo–20Si–52.8Ti Alloycitations
- 2022A novel nitridation- and pesting-resistant Cr-Si-Mo alloycitations
- 2022Pesting Resistance in High Mo Containing Alloys
- 2022Improved work hardening capability and ductility of an additively manufactured and deformed Al-Mn-Mg-Sc-Zr alloy
- 2021The Creep and Oxidation Behaviour of Pesting-Resistant (Mo,Ti)5Si3-Containing Eutectic-Eutectoid Mo-Si-Ti Alloyscitations
- 2021The Creep and Oxidation Behaviour of Pesting-Resistant $(Mo,Ti)_{5}Si_{3}$-Containing Eutectic-Eutectoid Mo-Si-Ti Alloys
- 2021Influence of Temperature and Plastic Strain on Deformation Mechanisms and Kink Band Formation in Homogenized HfNbTaTiZrcitations
- 2021Flexible Powder Production for Additive Manufacturing of Refractory Metal-Based Alloyscitations
- 2021Origin of non-uniform plasticity in a high-strength Al-Mn-Sc based alloy produced by laser powder bed fusion
- 2019Constitution, oxidation and creep of eutectic and eutectoid Mo-Si-Ti alloyscitations
- 2016Comparison of the microstructure and the mechanical properties of ferritic and austenitic ODS steels
- 2014Influence of zirconium content on microstructure and creep properties of Mo--9Si--8B alloyscitations
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article
Room and elevated temperature tensile and fatigue behaviour of additively manufactured Hastelloy X
Abstract
Quasi-static tensile and stress-controlled high cycle fatigue tests of solution heat-treated (SHT) Hastelloy Xmanufactured by electron beam powder bed fusion (PBF-EB) and laser-based power bed fusion (PBF-LB) processwere performed at room temperature and 750 ◦C. Post-fabrication SHT was ineffective in overcoming themicrostructural anisotropy observed within as-built specimens, with the grains still maintaining its columnararchitecture along the build direction. A significant drop in ductility was observed in tensile specimens tested at750 ◦C, which was attributed to the carbide precipitation and grain boundary sliding. Upon investigating theinfluence of microstructural evolution as a function of test duration, a significant increase in precipitation wasobserved with an increase in test duration. A notable decrease in the fatigue strength was observed at elevatedtemperature. The long columnar grain structure within vertically build PBF-EB specimens was found to offerhigher resistance against fatigue at 750 ◦C, owing to its reduced grain boundary area perpendicular to theloading direction. The corresponding fatigue damage mechanisms were investigated via fractographic analysis ofthe fracture surfaces and longitudinal cross-sections of the fractured specimens. Irrespective of the buildorientation and test conditions, the fatigue cracks that resulted in final failure were found to initiate from thespecimen surface. Also, the grain boundary precipitates were found to result in intergranular cracking duringelevated temperature fatigue tests.