Thermodynamics, Phase Equilibria and Martensitic Transformation in Fe-Mn-Si Alloys

1991 ◽  
Vol 246 ◽  
Author(s):  
Annika Forsberg ◽  
John Ågren
Keyword(s):  
Phase Diagram ◽  
Martensitic Transformation ◽  
Thermodynamic Properties ◽  
Phase Equilibria ◽  
Martensitic Transition ◽  
Thermodynamic Models ◽  
Complete Set ◽  
The Individual

AbstractThe thermodynamic properties of the Fe-Mn-Si system are analyzed by means of thermodynamic models for the individual phases. Special attention is paid to γ → ε martensitic transition. A complete set of parameters, from which arbitrary sections of the phase diagram as well as the Ma and As temperatures may be calculated, has been obtained.

Thermodynamic Properties and Phase Equilibria in the Ternary Cu-Pb-Fe System

2013 ◽  
Vol 58 (2) ◽  
pp. 541-548 ◽  
Author(s):  
B. Onderka ◽  
D. Jendrzejczyk-Handzlik ◽  
K. Fitzner
Keyword(s):  
Experimental Data ◽  
Phase Diagram ◽  
Thermodynamic Properties ◽  
Phase Equilibria ◽  
Thermodynamic Functions ◽  
Binary Systems ◽  
Liquid Solution ◽  
Calculated Diagram ◽  
Calculated Equilibrium ◽  
Good Agreement

Using experimental data available in the literature, two binary systems, namely Cu-Pb and Fe-Pb were recalculated. Next, accepting Cu-Fe phase diagram assessment as given by Ansara and Jansson, the ternary Cu-Fe-Pb system was analyzed. Calculated equilibrium lines and thermodynamic functions are compared with existing experimental data. Good agreement was found between the calculated diagram and the experimental results. Having the system optimized, functional dependences of the logarithms of the activity coefficients on temperature and concentrations for Cu, Fe and Pb in the liquid solution are given.

Phase diagram of the Sb–Te–I system and thermodynamic properties of SbTeI

2012 ◽  
Vol 103 (3) ◽  
pp. 290-295 ◽  
Author(s):  
Ziya S. Aliev ◽  
Mahammad B. Babanly ◽  
Andrei V. Shevelkov ◽  
Dunya M. Babanly ◽  
Jean-Claude Tedenac
Keyword(s):  
Phase Diagram ◽  
Thermodynamic Properties

Phase diagram and thermodynamic properties of the LaI3–RbI binary system

Calphad ◽  
2020 ◽  
Vol 70 ◽  
pp. 101809
Author(s):  
Leszek Rycerz ◽  
Jan Kapała ◽  
Beata Salamon ◽  
Irena Szczygieł ◽  
Marcelle Gaune-Escard
Keyword(s):  
Phase Diagram ◽  
Binary System ◽  
Thermodynamic Properties

Calculation of phase diagrams and thermodynamic properties of 14 additive and reciprocal ternary systems containing Li2CO3, Na2CO3, K2CO3, Li2SO4, Na2SO4, K2SO4, LiOH, NaOH, and KOH

1984 ◽  
Vol 62 (3) ◽  
pp. 457-474 ◽  
Author(s):  
A. D. Pelton ◽  
C. W. Bale ◽  
P. L. Lin
Keyword(s):  
Phase Diagram ◽  
Thermodynamic Properties ◽  
Molten Salt ◽  
Phase Diagrams ◽  
Binary Systems ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Ternary Systems ◽  
Maximum Error ◽  
Critical Assessment

Phase diagrams and thermodynamic properties of five additive molten salt ternary systems and nine reciprocal molten salt ternary systems containing the ions Li+, Na+, [Formula: see text], OH− are calculated from the thermodynamic properties of their binary subsystems which were obtained previously by a critical assessment of the thermodynamic data and the phase diagrams in these binary systems. Thermodynamic properties of ternary liquid phases are estimated from the binary properties by means of the Conformal Ionic Solution Theory. The ternary phase diagrams are then calculated from these thermodynamic properties by means of computer programs designed for the purpose. It is found that a ternary phase diagram can generally be calculated in this way with a maximum error about twice that of the maximum error in the binary phase diagrams upon which the calculations are based. If, in addition, some reliable ternary phase diagram measurements are available, these can be used to obtain small ternary correction terms. In this way, ternary phase diagram measurements can be smoothed and the isotherms drawn in a thermodynamically correct way. The thermodynamic approach permits experimental data to be critically assessed in the light of thermodynamic principles and accepted solution models. A critical assessment of error limits on all the calculated ternary diagrams is made, and suggestions as to which composition regions merit further experimental study are given.

Phase diagram and thermodynamic properties of solid magnesium in the quasiharmonic approximation

1993 ◽  
Vol 48 (18) ◽  
pp. 13253-13260 ◽  
Author(s):  
J. D. Althoff ◽  
P. B. Allen ◽  
R. M. Wentzcovitch ◽  
John A. Moriarty
Keyword(s):  
Phase Diagram ◽  
Thermodynamic Properties ◽  
Quasiharmonic Approximation

Performance Prediction for Automotive Turbocharger Compressors

1975 ◽  
Vol 189 (1) ◽  
pp. 557-565 ◽  
Author(s):  
A. Whitfield ◽  
F. J. Wallace
Keyword(s):  
Performance Prediction ◽  
Flow Analysis ◽  
Compressor Stage ◽  
Thermodynamic Models ◽  
Flow Rates ◽  
Design Point ◽  
One Dimensional ◽  
Dimensional Flow ◽  
Performance Map ◽  
The Individual

A procedure to predict the complete performance map of turbocharger centrifugal compressors is presented. This is based on a one-dimensional flow analysis using existing published loss correlations that were available and thermodynamic models to describe the incidence loss and slip factor variation at flow rates which differ from the design point. To predict the losses within the complete compressor stage using a one-dimensional flow procedure, it is necessary to introduce a number of empirical parameters. The uncertainty associated with these empirical parameters is assessed by studying the effect of varying them upon the individual losses and upon the overall predicted performance.

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