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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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Blackwell, Paul
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2023Integrating HIP and homogenisation heat treatment and its effect on the workability of a conventional peritectic TiAl alloycitations
- 2023Improving forging outcomes of cast titanium aluminide alloy via cyclic induction heat treatment
- 2023Influence of mesh in modelling of flow forming process
- 2022Tailoring titanium sheet metal using laser metal deposition to improve room temperature single-point incremental formingcitations
- 2021Effect of machining induced microstructure changes on the edge formability of titanium alloys at room temperature
- 2021A new route for developing ultrafine-grained Al alloy strips using repetitive bending under tensioncitations
- 2021Influence of longitudinal scratch defects on the bendability of titanium alloycitations
- 2020Formability of AA-7075 sheets subjected to repetitive bending under tension
- 2020Influence of sheet conditions on in-plane strain evolution via ex-situ tensile deformation of Ti-3Al-2.5V at room temperaturecitations
- 2020Examining failure behaviour of commercially pure titanium during tensile deformation and hole expansion testcitations
- 2020Influence of laser power and powder feed rate on the microstructure evolution of laser metal deposited Ti-5553 on forged substratescitations
- 2020Mechanical response and microstructure evolution of commercially pure titanium subjected to repetitive bending under tensioncitations
- 2020Aspects of high strain rate industrial forging of Inconel 718
- 2020Impact of machining induced surface defects on the edge formability of commercially pure titanium sheet at room temperaturecitations
- 2020Superplastic behaviour of Ti54M and Ti64citations
- 2019Effect of edge conditions on the formability of commercially pure titanium sheet (Grade 2) at room temperature
- 2019Superplastic behaviour of Ti54M and Ti64
- 2018Studies on Ti54M Titanium Alloy for Application within the Aerospace Industry
- 2018The effect of elasto-plastic properties of materials on their formability by flow formingcitations
- 2018Studies on titanium alloys for aerospace applicationcitations
- 2018Studies on titanium alloys for aerospace applicationcitations
- 2017Al-Li Alloys – The Analysis of Material Behaviour during Industrial Hot Forgingcitations
- 2017On the specifics of modelling of rotary forging processes
- 2017A dynamic model for simulation of hot radial forging processcitations
- 2017Microstructure and residual stress in Ti-6l-4V parts made by different additive manufacturing techniques
- 2017Al-Li Alloys : The Analysis of Material Behaviour during Industrial Hot Forgingcitations
- 2016β Recrystallisation characteristics of α + β titanium alloys for aerospace applicationscitations
- 2016Modelling microstructure evolution in ATI 718Plus® alloy
- 2016An approach to microstructure modelling in nickel based superalloys
- 2016Wear behaviour of laser cladded Ni-based WC composite coating for Inconel hot extrusion
- 2016Effect of plastic deformation on elastic and plastic recovery in CP-Titaniumcitations
- 2016The development of stress based continuum damage mechanics model for predicting the formability of Magnesium alloys under cold/warm stamping processes
- 2016The mechanics of superplastic formingcitations
- 2016Microstructure and residual stress in Ti-6l-4V parts made by different additive manufacturing techniques
- 2016Feasibility study of complex sheet hydroforming processcitations
- 2015Simulation of the material softening during hot metal formingcitations
- 2014Improvement in ductility in commercially pure titanium alloys by stress relaxation at room temperaturecitations
- 2014Modelling of active transformation of microstructure of two-phase Ti alloys during hot workingcitations
- 2013Modelling the superplastic forming of a multi-sheet diffusion bonded titanium alloy demonstrator fan bladecitations
- 2005Laser-aided manufacturing technologies; their application to the near-net shape forming of high-strength titanium alloycitations
- 2000Superplastic behaviour of Inconel 718 sheetcitations
Places of action
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document
Superplastic behaviour of Ti54M and Ti64
Abstract
Even though TIMETAL-54M (Ti-5Al-4V-0.6Mo-0.4Fe or Ti54M) has been commercially available for over 10 years, further study of its superplastic properties is still required in order to assess its applicability within the aerospace industry as a potential replacement for other commercial titanium alloys such as Ti-6Al-4V (Ti64). Ti54M is expected to obtain superplastic characteristics at a lower temperature than Ti64 due to its lower beta-transus temperature. The superplastic forming (SPF) capability of alloys that can be formed at lower temperatures has always attracted the interest of industry as it reduces the grain growth and alpha-case formation, leading to longer life for costly high temperature resistant forming tools.<br/>In this work, the SPF characteristics of both Ti54M and Ti64 have been examined by conducting tensile tests according to the ASTM E2448 standard within a range of temperatures and strain values at a fixed strain rate of 1x104/s. A high strain rate sensitivity and uniform deformation at high strains are key indicators in selecting the optimum superplastic temperature. This was observed at 815˚C and 925˚C for Ti54M and Ti64 respectively. The tensile samples were water quenched to freeze their respective microstructure evolution following superplastic deformation and SEM images were captured for grain size and volume fraction of alpha-phase analyses. A slightly higher alpha-grain growth rate was observed during superplastic deformation of Ti64. The initial fine-grain microstructure of Ti54M (~1.6 micron) resulted in a final microstructure with an average grain size of ~3.4 micron and optimum the alpha/beta ratio. Both the fine-grained microstructure and increased amount of beta-volume fraction promotes the superplastic behaviour of Ti54M by grain boundary sliding (GBS). Thus superplastic properties were observed for Ti54M at a lower temperature (~100˚C) than for Ti64.