On the α–α′ miscibility gap of fe–cr alloys

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Web28 de mar. de 2016 · The separation of a Cr-enriched nanometer-scale α′ phase can induce the embrittlement of Fe-Cr alloys at high temperature, and the separation kinetics of the α′ phase determines its spatial morphology. The quantitative kinetics of the α′ phase formed by spinodal decomposition was studied in a Fe-42 at.% Cr alloy by phase-field simulation at …

Fe-rich border of miscibility gap and activation energy of phase ...

Web28 de mar. de 2015 · However, their base alloying system, Fe-Cr, is affected by a low temperature (<600°C) miscibility gap present in the phase diagram. Alloys with a … Web30 de jan. de 2024 · Abstract. The status of miscibility gap alloys (MGA), which have demonstrated excellent characteristics for thermal storage applications over a wide range of temperatures, is reviewed. MGA remain macroscopically solid whilst delivering latent heat from embedded metal particles supplemented by the sensible heat of the whole material. irish pine dresser

The effect of Al on the 475 °C embrittlement of Fe–Cr alloys

Web22 de mai. de 2024 · Nowadays, both the ferrite phase and B2-structured intermetallic in the Fe-Cr-Al alloy system are developed as porous materials, which have been further applied as high-temperature filter materials in industry. This work presents a comparative study of the mechanical properties of porous Fe20Cr5Al, Fe10Cr10Al and Fe10Cr20Al aged at … WebExperimental data on partial ordering and α′ precipitation in Fe–Cr alloys and ferritic steels containing up to 15at.% Cr are summarized. From this data and computer simulations employing the most advanced Fe–Cr cohesive models, the Fe-rich phase boundary of the α–α′ miscibility gap is constructed. This boundary is critically compared with the … WebOn the α–α′ miscibility gap of Fe–Cr alloys. Scripta Materialia, 2008. Dmitry Terentyev. Download Download PDF. Full PDF Package Download Full PDF Package. This Paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper. irish pine sideboard

The Effect of Heating Temperature on α-α′ Miscibility and ...

The effect of Al on the 475 °C embrittlement of Fe–Cr alloys

Web20 de nov. de 2015 · As per prevailing literature, Fe–15 wt.% Cr alloy in its equilibrium, belongs to the miscibility gap region of Fe–Cr phase diagram. In view of this, there is a possibility that this alloy may decompose into a two … Web1 de abr. de 2024 · The addition of Tb increases the saturation magnetostriction in the Fe-19Ga-xTb and Fe-27.4Ga-xTb alloys (up to ≈235 ppm for the Fe-19Ga-0.37 Tb and ≈240 ppm for the Fe-27.4Ga-0.3 Tb samples). irish pie recipeWeb12 de abr. de 2024 · Ti and its alloys are the second largely investigated material after Fe-based alloys due to their diverse applications in the biomedical (medical) and aerospace … irish pike record

"Web6 de ago. de 2010 · These temperatures correspond to those for which the Fe-Cr standard phase diagram is not correct, by predicting a much lower solubility of Cr in Fe than the real one.[4,5] The actual position of the solubility limit then becomes critical because, if the material happens to be inside the α-α′ miscibility gap, the supersaturation of point … " - On the α–α′ miscibility gap of fe–cr alloys

On the α–α′ miscibility gap of fe–cr alloys

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WebIn general, FeCrAl alloys are faced with the separation of the high-chromium solid solution into α and α′ phases. For the Fe-25Cr-5Al-RE alloy, it is imperative to investigate the structure and morphology and their effect on the alloy’s mechanical properties. In this paper, XRD is used to reveal the presence of α and α′ phases. WebIEEE TRANSACTIONS ON MAGNETICS, VOL.MAG-17, NO. 6, NOVEMBER 1981 3473 Fe-Cr-Co Permanent Magnet Alloys Heat-Treated in the Ridge Region of the Miscibility Gap MOTOFUMI HOMMA, MASUO OKADA, TAKEHISA MINOWA, AND EIJI HORIKOSHI Abstract-By heat-treating in the ridge region of the miscibility gap, the magnetic …

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WebBest article: “Fitting interatomic potentials consistent with thermodynamics: Fe, Cu, Ni and their alloys”, Philosophical Magazine 89 (2009) 3451. Acta Student Award Acta Materialia Inc. 2008... WebThe miscibility gap of an Fe-Cr-Co system is further examined by monitoring the microstructures and the magnetic properties of the alloys. It is shown that the shape of …

WebMathon et al. 24 reported that α′ formation occurs in Fe-Cr model alloys at the temperatures as low as 250 °C under neutron irradiation when the concentration of Cr is larger than 8 … WebThe experiments revealed two distinct phase transformations: (i) at 720 ± 10 K (447 ± 10 °C), the Fe-20Cr alloy transformed from α'(Fe-rich) + α″(Cr-rich) two-phase microstructure to α single phase and (ii) at 925 ± 10 K (652 ± 10 °C), the ferromagnetic single-phase α transformed to paramagnetic state.

Web7 de out. de 2024 · Typically, Generation II alloys have Cr contents between 10 and 13 wt% and Al contents between 5 and 6 wt%. The lean-alloy composition space was selected … Web1 de jun. de 2013 · The effects of Fe-rich (α) and Cr-enriched (α′) phase separation, occurring during aging at 475 °C on the microstructure and mechanical properties of …

Web1 de mar. de 2024 · In this study, four FeCrAl model alloys with 10–18 at.% Cr and 5.8–9.3 at.% Al were neutron-irradiated to nominal damage doses up to 7.0 displacements per atom at a target temperature of 320 °C.

Web19 de mai. de 2024 · This paper presents the results of a Mössbauer spectroscopy investigation of the processes in the binary alloys Fe 100− c Cr c (c, at. % = 6.0, 9.4, 13.2) and of the short-range (SR) atomic ordering accelerated by applying warm severe plastic deformation via high pressure torsion (HPT).After warm HPT treatment, in the vicinity of … port authority zephyr 1/2-zip pullover j343Web7 de fev. de 2024 · thermodynamics of Fe–Cr alloys G Bonny1, 23, P Erhart , A Caro ,RCPasianot4,5 6, L Malerba1 and M Caro2 1 SCK-CEN, Nuclear Materials Science Institute, Boeretang 200, B-2400 Mol, Belgium ... of the α–α miscibility gap. By comparing the random alloy with the short range ordered alloy, ... irish pied french bulldogWeb14 de jul. de 2015 · In this study, a series of Fe Cr Al alloys with 10 18 wt % Cr and 2.9 4.9 wt % Al were neutron irradiated at 382 C to 1.8 dpa to investigate the irradiation-induced microstructural and mechanical property evolution as a function of alloy composition. Dislocation loops with Burgers vector of a/2 111 and a 100 were detected and quantified. irish pilsner beerWebAbstract: The miscibility gap of the α phase in Fe-Cr-Co permanent magnet alloys is constructed using mechanical hardness and Curie temperature measurements. It is … irish pine treeWebThe phase diagrams of binary alloys are known to vary with pressure. Within the framework of solution-type models, the variation is controlled by the pressure dependence of the elemental end members, which is relatively well known, and that of the excess interaction, which is unknown. port authority ® flannel sherpa blanketWeb20 de jan. de 2009 · Using atomistic simulations of Fe–Cr alloys and computational thermodynamics techniques, we study the influence of short range order (SRO) on the location of the α–α' miscibility gap. port authority® endeavor jacketWebActa Metall Sin, 2014, 50 (5): 515-523. DOI: 10.3724/SP.J.1037.2013.00623. Si-containing transformation induced plasticity (TRIP) steel is noted for good balance of excellent formability and high strength as the advanced high strength steel (AHSS). The advantage of this steel can be attributed to the TRIP effect, which is the transformation of ... port authority® daily commute backpack