Calculation of the Liquidus Curves of CaO-Al2O3 Phase Diagram by ESTPHAD Method

2008 ◽  
Vol 589 ◽  
pp. 323-328
Author(s):  
Tamás Mende ◽  
András Roósz
Keyword(s):  
Phase Diagram ◽  
Measurement Error ◽  
Phase Diagrams ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram ◽  
Measured Data ◽  
Calculation Time ◽  
Precise Result ◽  
Al2o3 Phase ◽  
The Given

Using the ESTPHAD (Estimation of Phase Diagrams) method, the liquidus and solidus curves in the equilibrium phase diagram can be created by thermodynamic based equations. By these determined equations, the liquidus or solidus temperatures as a function of concentration can be calculated with the required precision. The main advantages of the ESTPHAD method are as follows: the parameters of functions can be calculated simply, it gives a precise result and the calculation time is short. This paper shows the reconstruction of the liquidus curves of the CaO-Al2O3 phase diagram (0-60 wt% Al2O3 range) by using the ESTPHAD method on the basis of the measured data. The divergences between the measured and calculated (ESTPHAD) data are less than the given measurement error (±10 K).

Program Drawing the Dynamic Phase Diagrams of MnCrNiMo Type Steels

2014 ◽  
Vol 692 ◽  
pp. 444-449
Author(s):  
Qing Hua Zou ◽  
Li Zhu
Keyword(s):  
Phase Diagram ◽  
Phase Diagrams ◽  
Computer Calculation ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram ◽  
Chemical Compositions ◽  
Type Steel ◽  
Dynamic Phase Diagrams ◽  
Dynamic Phase ◽  
Non Equilibrium

The dynamic phase diagrams of MnCrNiMo type steel have been established and discussed, which can be applied in the practical production, and it analyzes the corresponding structures and chemical compositions. The computer calculation and drawing programs of non-equilibrium phase diagram of MnCrNiMo type steel. having been designed

Phase Diagram of Mg-Zn-Gd System Alloy at Mg Rich Corner and its Application in the Development of Two New Alloys

2013 ◽  
Vol 765 ◽  
pp. 3-7 ◽  
Author(s):  
Yong Chun Guo ◽  
Jian Ping Li ◽  
Jin Shan Li ◽  
Zhong Yang ◽  
Ping Wang
Keyword(s):  
Phase Diagram ◽  
Phase Diagrams ◽  
Equilibrium Phase ◽  
Calculated Phase Diagram ◽  
Equilibrium Phase Diagram ◽  
Isothermal Sections ◽  
Calculated Phase ◽  
Treatment Processes ◽  
Zn Content ◽  
Calculation Software

The Mg-rich corner of the equilibrium phase diagram of the Mg-Zn-Gd system has been calculated in detail using the phase diagram calculation software PANDAT and the thermodynamic database for Mg alloys. The calculated phase diagram includes the liquidus projection, isothermal sections and vertical sections. It is found that an increase of Zn content in the Mg-Gd alloy reduces the phase field of α-Mg + GdMg5. Based on the calculated phase diagrams, two alloys, Mg-5.5Zn-2Gd-0.5Zr and Mg-1.6Gd-5.5Zn-0.5Zr (wt.%), denoted as ZGK620 and ZGK616, were developed and their solidification and precipitation processes were analyzed in detail. The optimized thermal mechanical processing and heat-treatment processes were defined by referring to the calculated phase diagrams of the Mg-Zn-Gd system.

Intermetallic Formation in the Aluminum–Copper System

2003 ◽  
Vol 10 (04) ◽  
pp. 677-683 ◽  
Author(s):  
E. B. Hannech ◽  
N. Lamoudi ◽  
N. Benslim ◽  
B. Makhloufi
Keyword(s):  
Electron Microscopy ◽  
Phase Diagram ◽  
Solid Solution ◽  
Intermetallic Layer ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram ◽  
Diffusion Couples ◽  
Intermetallic Formation ◽  
Parabolic Law ◽  
Scanning Electron

Intermetallic formation at 425°C in the aluminum–copper system has been studied by scanning electron microscopy using welded diffusion couples. Several Al–Cu phases predicted by the equilibrium phase diagram of the elements and voids taking place in the diffusion zone have been detected in the couples. The predominant phases were found to be Al 2 Cu 3 and the solid solution of Al in Cu, α. The growth of the intermetallic layer obeyed the parabolic law.

Equilibrium phase diagram of polystyrene and 8CB

1999 ◽  
Vol 37 (15) ◽  
pp. 1841-1848 ◽  
Author(s):  
Farida Benmouna ◽  
Abdelylah Daoudi ◽  
Fr�d�rick Roussel ◽  
Jean-Marc Buisine ◽  
Xavier Coqueret ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram

scholarly journals Formation of Intermediate Phases and Supersaturated Solid Solution in Al-Cu System during Diffusion

2018 ◽  
Vol 383 ◽  
pp. 31-35 ◽  
Author(s):  
Alexey Rodin ◽  
Nataliya Goreslavets
Keyword(s):  
Phase Diagram ◽  
Solid Solution ◽  
High Temperature ◽  
Chemical Composition ◽  
Low Temperature ◽  
Supersaturated Solid Solution ◽  
Diffusion Processes ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram ◽  
Intermediate Phases

The study of diffusion processes in the aluminum - copper system was carried out at the temperature 350 and 520 °C. Special attention was paid on the chemical composition of the system near Al/Cu interface. It was determined that the intermediate phases in the system, corresponding to the equilibrium phase diagram, were not formed at low temperature. At high temperature the intermediate phases forms starting with Cu - rich phases. In both cases supersaturated solid solution of copper in aluminum could be observed near the interface.

scholarly journals Equilibrium Phase Diagram of the Zn–Ag Alloy

2018 ◽  
Vol 20 (3) ◽  
pp. 72-84
Author(s):  
Alexey Korolev ◽  
◽  
Gennagy Maltsev ◽  
Konstantin Timofeev ◽  
Vladimir Lobanov ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram

Equilibrium Phase Diagram of Li＋,Na＋∥,CO32－,B4O72－-H2O Quaternary System at 288 K

2002 ◽  
Vol 18 (09) ◽  
pp. 835-837 ◽  
Author(s):  
Sang Shi-Hua ◽  
◽  
Yin Hui-An ◽  
Tang Ming-Lin ◽  
Zhang Yun-Xiang
Keyword(s):  
Phase Diagram ◽  
Quaternary System ◽  
Equilibrium Phase ◽  
Equilibrium Phase Diagram
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