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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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Janik, Vit
Coventry University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024SEM-Guided Finite Element Simulation of Thermal Stresses in Multilayered Suspension Plasma-Sprayed TBCscitations
- 2023Study on the Influence of Nickel Additions on AA7020 Formability Under Superplastic Forming Like Conditionscitations
- 2023Cracking Behavior of Gd2Zr2O7/YSZ Multi-Layered Thermal Barrier Coatings Deposited by Suspension Plasma Spraycitations
- 2022High-Entropy Coatings (HEC) for High-Temperature Applications: Materials, Processing, and Propertiescitations
- 2022High-entropy coatings (HEC) for high-temperature applications : materials, processing, and propertiescitations
- 2020The role of microstructure and local crystallographic orientation near porosity defects on the high cycle fatigue life of an additive manufactured Ti-6Al-4Vcitations
- 2020Correlative analysis of interaction between recrystallization and precipitation during sub-critical annealing of cold-rolled low-carbon V and Ti–V bearing microalloyed steelscitations
- 2019A Gibbs Energy Balance Model for Growth Via Diffusional Growth-Ledgescitations
- 2018A phase-field model investigating the role of elastic strain energy during the growth of closely spaced neighbouring interphase precipitatescitations
- 2018Comparison of superplastic forming abilities of as‐cast AZ91 magnesium alloy prepared by twin roll casting and WE43 magnesium alloycitations
- 2018Quasi in-situ analysis of geometrically necessary dislocation density in α-fibre and γ-fibre during static recrystallization in cold-rolled low-carbon Ti-V bearing microalloyed steelcitations
- 2018Nano-mechanical properties of Fe-Mn-Al-C lightweight steelscitations
- 2017Interphase precipitation - An interfacial segregation modelcitations
- 2017Predicting the warm forming behavior of WE43 and AA5086 alloyscitations
- 2017A phase-field model for interphase precipitation in V-micro-alloyed structural steelscitations
- 2017In-situ characterisation of austenite/ferrite transformation kinetics and modelling of interphase precipitation inter-sheet spacing in V microalloyed HSLA steelscitations
- 2017In-situ heated stage scanning electron microscope analysis and characterisation of recrystallization behaviour of a 7000 series alloy with nickel additionscitations
- 2016Zn Diffusion and α-Fe(Zn) Layer Growth During Annealing of Zn-Coated B Steelcitations
- 2016Effect of grain size distribution on recrystallisation kinetics in a Fe-30Ni model alloy
- 2016Analysis of the extent of interphase precipitation in V-HSLA steels through in-situ characterization of the γ/α transformationcitations
- 2015Application of In-Situ Material Characterization Methods to Describe Role of Mo During Processing of Vbearing Micro-Alloyed Steels
- 2014Role of heating conditions on microcrack formation in zinc coated 22MnB5
- 2014Superplastic forming ability of as-cast AZ91 Mg alloy prepared by twin roll castingcitations
- 2014Elevated Temperature Deformation Behavior of High Strength Al-Cu-Mg-Ag Based Alloy Reinforced by TiB2 Particlescitations
- 2009Microstructural investigation of the failure mechanisms after creep exposure of Mg-Y-Nd-Zn-Mn alloycitations
- 2009Phase composition and morphology development in WE-type alloys modified by high Zn contentcitations
- 2008Creep behaviour of the creep resistant MgY3Nd2Zn1Mn1 alloycitations
- 2008Cavitation and grain boundary sliding during creep of Mg-Y-Nd-Zn-Mn alloycitations
- 2007Creepové Porušování Slitiny MgY3Nd2Zn1Mn1 Lité Metodou Squeeze Casting
- 2007Chemical composition of new copper alloys for machining and its effect on their susceptibility to corrosion crackingcitations
- 2007VLIV Množství Zn Na Mikrostrukturu A Mechanické Vlastnosti Litých Hořčíkových Slitin Typu Mg-Zn-Y-Nd
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document
Creepové Porušování Slitiny MgY3Nd2Zn1Mn1 Lité Metodou Squeeze Casting
Abstract
<p>The paper deals with the creep damage of the alloy MgY3Nd2Zn1Mn1 prepared by squeeze casting. The tensile creep tests were performed at constant load in the stress range 30 to 80 MPa and at 300<sup>o</sup>C. In the stress range 30 to 70 MPa, the minimum creep rate (ε/t)<sub>min</sub> is a function of the stress which follows a power law with an exponent n = 5.89. The time to fracture t<sub>f</sub> is also a power function of the stress with an exponent m = - 4.39. The modified Monkman-Grant relation can be expressed by the equation t<sub>f</sub>/(ε<sub>f</sub> − ε<sub>p</sub>).(ε/t)<sub>min</sub><sup>1.0001</sup> = 0.57, where ε<sub>f</sub> is the strain at fracture and ε<sub>p</sub> is the strain of primary creep. Both the mean value of the modified Monkman-Grant and its scatter (determined for the particular stress values in the Monkman-Grant relation at unity value of the exponent) correspond to the model of constrained growth of cavities along dendrite boundaries. The creep damage consisting in initiation, growth and coalescence of cavities at dendrite boundaries was monitored by light microscopy observation of the surface of creep test pieces and metallographic samples prepared in planes parallel with test pieces axis, and by fractographic studies of fracture surfaces of broken creep specimens using scanning electron microscopy. In addition, our results proved the validity of the relation between the time to fracture t<sub>f</sub> and the time necessary to achieve the Monkman-Grant elongation t<sub>MGD</sub>= t<sub>f</sub>.(ε/t)<sub>min</sub> consistent with the model of continuous creep damage.</p>