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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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Sharp, Joanne
University of Huddersfield
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Investigation of the microstructure of He+ ion-irradiated TiBe12 and CrBe12 using ex-situ transmission electron microscopycitations
- 2020Improving the oscillating wear response of cold sprayed Ti-6Al-4V coatings through a heat treatmentcitations
- 2020Ramification of thermal expansion mismatch and phase transformation in TiC-particulate/SiC-matrix ceramic compositecitations
- 2020The Lubricating Properties of Spark Plasma Sintered (SPS) Ti3SiC2 MAX Phase Compound and Compositecitations
- 2019Exploiting thermal strain to achieve an in-situ magnetically graded materialcitations
- 2019Microstructural evolution and wear mechanism of Ti3AlC2 – Ti2AlC dual MAX phase composite consolidated by spark plasma sintering (SPS)citations
- 2019Influence of solidification cell structure on the martensitic transformation in additively manufactured steelscitations
- 2017Spinel–rock salt transformation in LiCoMnO4−δcitations
- 2017Direct observation of precipitation along twin boundaries and dissolution in a magnesium alloy annealing at high temperaturecitations
- 2017Tribological response and characterization of Mo–W doped DLC coatingcitations
- 2016On the use of cryomilling and spark plasma sintering to achieve high strength in a magnesium alloycitations
- 2016Characterisation of L21-ordered Ni2TiAl precipitates in Fe-Mn maraging steelscitations
- 2016Spinel-rock salt transformation in LiCoMnO4-δcitations
- 2016Microstructural evolution of Mn-based maraging steels and their influences on mechanical propertiescitations
- 2015New compositional design for creating tough metallic glass composites with excellent work hardeningcitations
- 2015Cross sectional TEM analysis of duplex HIPIMS and DC magnetron sputtered Mo and W doped carbon coatings
- 20123-dimensional imaging of dislocation microstructures by electron beams
- 2011High-angle triple-axis specimen holder for three-dimensional diffraction contrast imaging in transmission electron microscopycitations
Places of action
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article
Microstructural evolution of Mn-based maraging steels and their influences on mechanical properties
Abstract
The microstructural evolution in a set of Mn-based maraging steels (7–12 wt% Mn) when aged at 460–500 ºC for various durations up to 10,080 min and the influences on mechanical properties are systematically investigated. The improved yield strength of peak-aged samples is attributed to the formation of Ni2TiAl precipitates and the precipitation strengthening is governed by Orowan mechanism. Segregation of Mn at grain boundaries in the initial aging stage resulted in severe intergranular brittleness. During further aging, accumulated Mn segregation leading to the formation of ductile lath-like reverted austenite removed the embrittlement and significantly improved the ductility. In the overaged condition, the steady work hardening after yielding compensates the loss of yield strength resulting from the coarsening of precipitates and softening of α′-martensite matrix. There was only limited evidence of the TRIP effect in the reverted austenite, indicating that work hardening was associated with other deformation mechanisms. Increasing the aging temperature or the Mn content of alloy that promotes austenite reversion was demonstrated to accelerate the improvement of ductility.