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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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Perez, Marcos
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 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
- 2018Microstructural and texture evolution of Jethete M152 flanged-test pieces during cold rotary forgingcitations
- 2018Microstructural evolution of Nimonic 80a during hot forging under non-isothermal conditions of screw presscitations
- 2018Impact of forging direction on the recrystallization behaviour of nickel base superalloy AD730 billet material at subsolvus temperaturescitations
- 2017Impact of various heat treatments on the microstructure evolution and mechanical properties of hot forged 18CrNiMo7-6 steel
- 2017Analysis of innovative incremental cold forming process for the manufacturing of aerospace rotating partscitations
- 2017Effects of forming route and heat treatment on the distortion behaviour of case-hardened martensitic steel type S156
- 2017Impact of annealing treatments on the softening and work hardening behaviour of Jethete M152 alloy for subsequent cold forming processescitations
Places of action
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article
Improving forging outcomes of cast titanium aluminide alloy via cyclic induction heat treatment
Abstract
The objective of this research was to improve the forging outcome of peritectic solidifying cast titanium aluminide (TiAl) 4822 alloy (Ti-48Al-2Nb-2Cr at.%) in hot isostatic pressed and homogenised (HH) condition using cyclic induction heat treatment (CHT). This study adds to research around CHT for TiAl alloys by applying industrially relevant induction heating to conduct five heating cycles at the single αphase temperatures (1370 °C) necessary for grain refinement. Two cooling rates were explored in each cycle, air cooling (ACCHT) and controlled furnace-like cooling (FCCHT), without returning to room temperature. Samples were assessed at each stage in terms of their morphologies, lamellar grain size and content, as well as phase and dynamic recrystallised fraction, and subsequent primary and secondary compression behaviour with uniaxial isothermal compression. The FCCHT process resulted in a homogeneously refined fully lamellar microstructure, and ACCHT, in a heterogeneous microstructure consisting of lamellar and feathery γ (γf) at differing fractions across the piece, depending on the cooling rate compared with HH. The results show that CHT improved forging outcomes for both compression stages investigated, resulting in uniform compression samples with higher volumes of dynamic recrystallised material compared with the instability seen with the compression of HH material.