Results 1 to 10 of about 93,771 (188)
Metals, 2022 Effects of different pressures on the isothermal-solidification process of pure Al were studied by molecular dynamics (MD) simulation using the embedded-atom method (EAM).
Xiaohua Chen +5 more
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Effect of Grain Size Distribution on Recrystallisation Kinetics in an Fe-30Ni Model Alloy [PDF]
Metals, 2019 This paper discusses the role of grain size distribution on the recrystallisation rates and Avrami values for a Fe-30 wt. % Ni steel, which was used as a model alloy retaining an austenitic structure to room temperature.
Mo Ji, Claire Davis, Martin Strangwood
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An Explanation to the Anomalous Avrami Exponent
Scripta Materialia, 1996 Abstract A modified form of KJMA equations has been derived by assuming a distribution of pre-existing nuclei, and nucleation rate. It was found that the inhomogeneous distribution of nuclei can result in two effects: 1. (a) lowering the Avrami exponent, 2. (b) nonlinearity of the Avrami plot, especially at high x.
X D Liu
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Avrami Exponent Under Transient and Heterogeneous Nucleation Transformation Conditions [PDF]
Journal of Non-Crystalline Solids, 2011 The Kolmogorov-Johnson-Mehl-Avrami model for isothermal transformation kinetics is universal under specific assumptions. However, the experimental Avrami exponent deviates from the universal value. In this context, we study the effect of transient heterogeneous nucleation on the Avrami exponent for bulk materials and also for transformations leading to
Indrajit Sinha, R K Mandal
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Results in Materials, 2019 We undertook a three-dimensional analysis of the recrystallization that occurs in pure iron from the viewpoint of consistency between the growth direction of the recrystallized ferrite grains and the Johnson-Mehl-Avrami-Kolmogorov (JMAK) theory.
Toshiaki Matsui +2 more
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Journal of Materials Research and Technology, 2022 A comparative study on the thermal stability and kinetics of crystallization of both melt–spun and bulk Pd77.5Cu6Si16.5 metallic glasses was performed. Rapidly quenched Pd77.5Cu6Si16.5 ribbon and as–cast bulk metallic glass (BMG) sample were produced by ...
Y.C. Tang +7 more
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Metals, 2022 Isothermal solidification process of pure metal Al was studied by molecular dynamics (MD) simulation using EAM potential. The effects of different cooling rates on the isothermal solidification process of metallic Al were studied.
Xiaohua Chen +6 more
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Recrystallization Kinetics of Fe-3%Si after Deformation at High Strain Rate and High Temperature [PDF]
Materials Research, 2019 Recrystallization kinetics of Fe-3%Si with initial grain size 296~839µm at the temperature range 1223~1423K, strain range from 0.51 to 0.92, strain rate range 5~80s−1 was studied by isothermal compression test using Gleeble-2000.
An Fenghui +4 more
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Influence of the polyhedral oligomeric silsesquioxane n-phenylaminopropyl: POSS in the thermal stability and the glass transition temperature of epoxy resin [PDF]
Polímeros, 2013 In this study, epoxy nanocomposites containing different fractions of n-phenylaminopropyl (POSS) were prepared. The nanocomposites were studied by transmission electron microscopy (TEM), gel content, dynamic-mechanical analysis (DMA) and ...
Vinícius Pistor +2 more
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Effect of High Pressure Heat Treatment on the Phase Transformation Dynamics of α+γ2→ß in Cu-Al Alloy [PDF]
Materials Research, 2020 In this paper, high pressure heat treatment for Cu-Al alloy is carried out at the pressure of 5GPa and the heating temperature of 700°C for 15 minutes. The phase transformation temperature and time of α+γ2→ß in Cu-Al alloy are measured before and after ...
Dong Cao
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