Solubility Measurement and Thermodynamic Modeling of 4-Nitrophthalimide in Twelve Pure Solvents at Elevated Temperatures Ranging from (273.15 to 323.15) K

2016 ◽  
Vol 61 (7) ◽  
pp. 2525-2535 ◽  
Author(s):  
Shuo Han ◽  
Long Meng ◽  
Cunbin Du ◽  
Jian Xu ◽  
Chao Cheng ◽  
...  
Keyword(s):  
Thermodynamic Modeling ◽  
Elevated Temperatures ◽  
Solubility Measurement

Solubility Measurement and Thermodynamic Modeling of N-(4-Methylphenyl-Z-3-chloro-2-(phenylthio)propenamide in 12 Pure Solvents at Temperatures Ranging from 278.15 to 318.15 K

2018 ◽  
Vol 63 (5) ◽  
pp. 1419-1428 ◽  
Author(s):  
Brian de Souza ◽  
Leila Keshavarz ◽  
René R. E. Steendam ◽  
Olga C. Dennehy ◽  
Denis Lynch ◽  
...  
Keyword(s):  
Thermodynamic Modeling ◽  
Solubility Measurement

Thermodynamic Modeling and Experimental Measurement of Precipitation Formation during Dynamic Recrystallization for Magnesium Alloys

2014 ◽  
Vol 922 ◽  
pp. 310-315 ◽  
Author(s):  
Abu Syed Humaun Kabir ◽  
Jing Su ◽  
Mehdi Sanjari ◽  
In Ho Jung ◽  
Stephen Yue
Keyword(s):  
Magnesium Alloys ◽  
Thermodynamic Modeling ◽  
Hot Deformation ◽  
Elevated Temperatures ◽  
Deformation Behaviour ◽  
Deformation Degree ◽  
Modeling Software ◽  
Constant Deformation ◽  
Hot Deformation Behaviour ◽  
Precipitation Formation

Magnesium alloys have low formability at room temperature associated with its hexagonal closed pack structure. Formation of precipitates during deformation may pin the grain boundary and reduce the final grain size, which literally means the improvement of formability. The aim of this study is to design magnesium alloys that are capable of forming precipitate during hot deformation. Thermodynamic modeling software, FactSage, has been used to design Mg-Al-Sn alloys based on forming target Mg2Sn precipitate at hot deformation temperatures between 250 and 350oC. Uniaxial compression at elevated temperatures has been performed to simulate the hot deformation behaviour as well as to enhance the formation of precipitates. Strain rates used in this study were in the range of 1.0 to 0.001s-1for a constant deformation degree of 90%. It was found that the formation of precipitate depends on deformation temperature and strain rate. Measured amounts of precipitate were compared with the calculated equilibrium results from FactSage.

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