MTDATA - thermodynamic and phase equilibrium software from the national physical laboratory

Davies, R. H.; Dinsdale, Alan; Gisby, John; Robinson, J A J; Martin, Susan M.

doi:10.1016/s0364-5916(02)00036-6

Cited by 429 publications

(272 citation statements)

References 10 publications

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“…Thermodynamic modeling was conducted using the calculation software MTDATA version 4.73 from the National Physical Laboratory, Teddington, U. K. [23] with various thermodynamic databases. [24,25] Due to the large solute concentrations envisaged, B s temperatures were calculated using the program MTTTData*.…”

Section: Alloy Designmentioning

confidence: 99%

“…[24,25] Due to the large solute concentrations envisaged, B s temperatures were calculated using the program MTTTData*. [23,25,26] M s temperatures were calculated using an artificial neural network via the software Neuromat Model Manager [27] and using a publicly available database**. [28] Where a composition lay within its specified limits, M s was calculated also using the program MUCG83 .…”

Section: Alloy Designmentioning

confidence: 99%

“…[30] Thermodynamic calculations showed that the composition listed in Table I can be fully austenitized ( Figure 3) and has a calculated B s of 643 K (370°C) and M s of 363 K (90°C). [23,25,26] The neural network model predicts an M s of 413 K (160°C). [27,28] These values are consistent with previously reported nanocrystalline bainitic steels.…”

Section: B Alloymentioning

confidence: 99%

“…[30] Besides iron, carbon, and nickel, Alloy 2 includes aluminum to both accelerate the bainite transformation and provide some resistance to cementite precipitation, cobalt to further accelerate the bainite transformation, and small amounts of manganese and molybdenum to tie up sulfur and phosphorus impurities, respectively, but in quantities small enough not to have other metallurgical consequences. [23,24] The level of aluminum is limited so that the B s and M s remain suppressed to temperatures where nanostructured bainite can be obtained (Table I). …”

Section: B Alloymentioning

confidence: 99%

“…X-ray detection was attained by a Thales Pixium RF 4343 large-area 2D detector with pixels 148 lm 2 Table I [23,25,26] Data are calculated only for 273K<T<B s (0 C<T<B s ). Alloy 2 is expected to form retained austenite with a lower carbon content than Alloy 1 at a given transformation temperature.…”

Section: A As-transformed Microstructuresmentioning

confidence: 99%

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Thermally Stable Nanocrystalline Steel

Hulme-Smith

Ooi

Bhadeshia

2017

Metall Mater Trans A

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Two novel nanocrystalline steels were designed to withstand elevated temperatures without catastrophic microstructural changes. In the most successful alloy, a large quantity of nickel was added to stabilize austenite and allow a reduction in the carbon content. A 50 kg cast of the novel alloy was produced and used to verify the formation of nanocrystalline bainite. Synchrotron X-ray diffractometry using in situ heating showed that austenite was able to survive more than 1 hour at 773 K (500°C) and subsequent cooling to ambient temperature. This is the first reported nanocrystalline steel with high-temperature capability.

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Section: Alloy Designmentioning

confidence: 99%

Section: Alloy Designmentioning

confidence: 99%

Section: B Alloymentioning

confidence: 99%

Section: B Alloymentioning

confidence: 99%

Section: A As-transformed Microstructuresmentioning

confidence: 99%

See 3 more Smart Citations

Thermally Stable Nanocrystalline Steel

Hulme-Smith

Ooi

Bhadeshia

2017

Metall Mater Trans A

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Growth of Semiconductor Materials

Pizzini¹

2015

Physical Chemistry of Semiconductor Materials and Processes

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Characterization and Modelling of Ni Based Superalloy Materials with a Dual Layered MCrAlY Coating System

Liu¹,

Karunaratne²,

Jepson³

et al. 2012

Superalloys 2012

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Multilayered MCrAlY type coatings have the potential to be optimised to protect superalloy components against both corrosion and oxidation simultaneously. In this paper, a dual layered coating (NiCr(Co)AlY on top of a NiCoCrAlY coating) has been aged and the microstructural evolution has been observed and quantified using various electron microscopy based techniques. In addition, the microstructural evolution of the coating has been modelled using a diffusion based model capable of predicting the ageing of multilayer coatings. It is demonstrated that the model is reasonably accurate in predicting both the phase and chemical distributions through the coating system during ageing, and therefore has the potential to be used as a design tool for the improvement of future layered coating systems.

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MTDATA - thermodynamic and phase equilibrium software from the national physical laboratory

Cited by 429 publications

References 10 publications

Thermally Stable Nanocrystalline Steel

Thermally Stable Nanocrystalline Steel

Growth of Semiconductor Materials

Characterization and Modelling of Ni Based Superalloy Materials with a Dual Layered MCrAlY Coating System

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