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Gibbs energy

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Published: 01 December 1999
Fig. 3.1 Gibbs energy (Δ G plotted against the interaction energy (W x ) for alloying elements added to steel. More
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Published: 01 March 2012
Fig. 3.24 Use of Gibbs energy curves to construct a binary phase diagram that shows miscibility in both the liquid and solid states. Source: Ref 3.3 as published in Ref 3.2 More
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Published: 01 March 2012
Fig. 3.26 Use of Gibbs energy curves to construct a binary phase diagram of the eutectic type. Source: Ref 3.4 as published in Ref 3.2 More
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Published: 01 March 2012
Fig. 11.1 Standard Gibbs energies of formation of selected oxides as a function of temperature. Source: Ref 11.1 as published in Ref 11.2 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420231
EISBN: 978-1-62708-310-2
... by Gibbs energy changes. It plots the energy of formation for many important metal oxides and explains how to construct isothermal stability diagrams to analyze complex reactions involving metals, alloys, and gases containing more than one reactive component. gas-metal systems isothermal stability...
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Published: 01 November 2010
Fig. 4.6 Standard Gibbs free energy of formation for several carbides as a function of (a) temperature and (b) solubility in nickel at 1250 °C (2280 °F). Source: Ref 21 More
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Published: 01 March 2012
Fig. 2.12 Gibbs free-energy curves during solidification. Source: Ref 2.2 More
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Published: 01 March 2012
Fig. 3.1 Gibbs free energy for different atomic configurations in a system. Configuration A has the lowest free energy and therefore is the arrangement of stable equilibrium. Configuration B is in a state of metastable equilibrium. Adapted from Ref 3.1 More
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Published: 01 March 2012
Fig. 3.3 Variation of Gibbs free energy with temperature. Adapted from Ref 3.1 More
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Published: 01 March 2012
Fig. 16.9 (a) Gibbs free-energy composition diagram and (b) locus of solvus curves of metastable and stable equilibrium phases in a precipitation sequence. (a) The points of common tangency show the relationship between compositions of the matrix phase (C″, C′, and C eq ) and the various forms More
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Published: 01 December 1996
Fig. 9-10 Schematic illustration of (a) the Gibbs free energy of austenite (γ) and pearlite as a function of temperature for a 0.8% C plain carbon eutectoid steel, and of (b) the difference in the free energy of these two constituents More
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Published: 01 June 2008
Fig. 4.3 Gibbs free-energy curves during solidification More
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Published: 01 June 2008
Fig. 6.14 Gibbs free energy curves and construction of binary phase diagram. Source: Ref 6 More
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Published: 01 June 2008
Fig. 6.15 Gibbs free energy curves and construction of eutectic phase diagram. Source: Ref 6 More
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Published: 01 December 2008
Fig. 1 Standard Gibbs free energy of formation of some metal oxides as a function of temperature. Source: Ref 4 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420263
EISBN: 978-1-62708-310-2
... in industry. It also provides examples showing how CALPHAD has been used to determine the formability of metallic glass, calculate the dilation of stainless steel during phase transformation, and predict the beta transus and approach curves of commercial titanium alloys. CALPHAD approach Gibbs energy...
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Published: 01 December 2008
Fig. 4.15 Relationship between μ A α and μ B α along the Gibbs energy curves G α ; 1-2-3 (Ω ≤ 2 RT ) and 4-5-6-7-8 (Ω>2RT). The word “spinodal” derives from the word “spine,” stiff sharp-pointed parts (6 and 7) in this diagram. Source: Ref 4 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310281
EISBN: 978-1-62708-286-0
... ), which describes mathematically the thermodynamics of a system through a representation of the Gibbs energies of the different crystalline phases relevant to that system and defined by the chemical composition of the system. Thermo-Calc minimizes the total Gibbs energy of the system with respect...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420041
EISBN: 978-1-62708-310-2
... Abstract This chapter explains how the principles of chemical thermodynamics are used in the construction and interpretation of phase diagrams. After a brief review of the laws of thermodynamics, it describes the concept of Gibbs free energy and its application to transformations that occur...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
... Abstract This chapter provides a thorough introduction to the electrochemical thermodynamics that govern electrode reactions associated with corrosion. It begins with a review of the thermodynamic criteria for the stability of chemical reactions based on Gibbs free energy and explains how...