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thermodynamic properties

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Published: 01 December 2008
Fig. 2.19 Thermodynamic properties of magnetic materials. (a) The changes in the heat capacity (a1), the enthalpy (a2), and the free energy (a3) of bcc Fe according to magnetic transformation. (b) Unless magnetic transition occurs, A 3 transition will not occur. (c) Is hcp Fe nonmagnetic? See 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
..., and various thermodynamic properties, as well as critical assessments and data evaluations for multicomponent systems. While many types of calculations can be made using Thermo-Calc, the software typically is used to predict: Stable and meta-stable phase equilibria for binary, ternary, and higher...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420263
EISBN: 978-1-62708-310-2
... possible to use more complex descriptions of thermodynamic properties and move from binary and ternary alloys to actual multicomponent alloys used in industrial practice. Although the scientific methodology had been available to do this for some time, practical applications required a minimum of computing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860001
EISBN: 978-1-62708-348-5
... thermodynamic to other physical properties; changes during cooling from ambient to near-zero temperature; and near-zero-temperature behavior. 1.12 References 1.12 References Aaronson H. J. and Shewmon P. G. (1967) . Self-diffusion and elastic constants in the anomalous b.c.c. metals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230055
EISBN: 978-1-62708-298-3
... will reverse, and pure beryllium will deposit if the gas mixture is cooled or the pressure increased. References References Brewer L.M. , 1950a . Thermodynamic Properties of Common Gases , The Chemistry and Metallurgy of Miscellaneous Materials , Quill L.F. , Ed., McGraw-Hill, NY , p...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260245
EISBN: 978-1-62708-336-2
... Abstract This chapter provides a summary of ongoing efforts to improve quality and productivity in the aluminum extrusion industry. It assesses advancements in several areas including extrusion presses and auxiliary equipment, tool and die technology, billet casting, extrusion thermodynamics...
Book Chapter

By L. L. Sparks
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860047
EISBN: 978-1-62708-348-5
... is a fundamental property that relates the total heat per unit mass added to a system to the resultant temperature change of the system. This chapter begins with the definition and historical development of specific heat. Thermodynamic and solid state relationships are presented which include discussions about...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310001
EISBN: 978-1-62708-286-0
... to ferromagnetism) that are not given up as valence electrons, causing repulsive forces between atoms and requiring a more widely spaced structure. All thermodynamic properties are based on interatomic attractions. In metals, the metal atoms give up valence electrons to the entire mass. These electrons...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420239
EISBN: 978-1-62708-310-2
... reverses abruptly (more abrupt than a typical smooth “retro-grade”). This particular change can occur only if there is an accompanying abrupt change in the temperature dependence of the thermodynamic properties of either of the two phases involved (in this instance, δ or λ in relation to the boundary...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860515
EISBN: 978-1-62708-348-5
... . 29, 349 – 354 . 10.1063/1.1716195 Douglas B. T. ( 1969 ). Conversion of existing calori-metrically determined thermodynamic properties to the basis of the international practical temperature scale of 1968 . J. Res. Natl. Bur. Stand . 73A, 451 – 470 . 10.6028/jres.073A.035...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
..., the influence of principal variables on temperature rise, and different types of temperature measurements. It also discusses the benefits of isothermal extrusion and how it achieves consistent mechanical properties in extruded components. extrusion thermodynamics The term thermodynamics refers...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780295
EISBN: 978-1-62708-281-5
... to this rule. At any rate, the densification and possible configurational changes that accompany aging alter mechanical properties, especially ductile-brittle behavior. Cooling stresses, orientation, and the nonequilibrium thermodynamic state of glasses often simultaneously accompany processing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.t52320001
EISBN: 978-1-62708-357-7
... observers to the threshold of the “atomic and molecular world,” below the nanometer scale. However, one cannot understand the essence of “things” only from accumulating the results of observation. A philosophy beyond observation, especially one based on thermodynamics, was needed so that metallography...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420041
EISBN: 978-1-62708-310-2
... following the laws of thermodynamics. The thermodynamic properties of individual phases can be used for evaluating their relative stability and heat evolution during phase transformations or reactions. Traditionally, one of the most common applications of chemical thermodynamics is for the construction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.9781627083577
EISBN: 978-1-62708-357-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700135
EISBN: 978-1-62708-279-2
... Abstract This chapter briefly discusses the characteristics of mechanical twins and stacking faults in close-packed planes. It provides an overview of the composition, microstructures, thermodynamics, processing, deformation mechanism, mechanical properties, formability, and special attributes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230105
EISBN: 978-1-62708-351-5
... • Wicks C.E. and Block F.E. , 1963 . “Thermodynamic Properties of 65 Elements – Their Oxides, Halides, Carbides and Nitrides,” U.S. Bureau of Mines , Bull. 605, U.S. Government Printing Office • Wigley D.A. , Sandefur P.G. , and Lawing P.L. , 1981 . Preliminary Results...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900045
EISBN: 978-1-62708-358-4
... on further assumptions and analytical expressions and the availability of databases for the thermodynamic properties of various phases in alloy systems of interest ( Ref 10 , 11 ). The determination of phase equilibria by thermodynamic calculations requires the storage and manipulation of large amounts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420073
EISBN: 978-1-62708-310-2
... . The areas (fields) in a phase diagram, and the position and shapes of the points, lines, surfaces, and intersections in it, are controlled by thermodynamic principles and the thermodynamic properties of all of the phases that constitute the system. The phase field rule specifies that at constant temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
... by the α phase. However, if β is present around the grain boundaries of α, then the strength and ductility of the alloy is largely dictated by properties of the β phase. Additional examples of applications of phase diagrams developed by thermodynamics modeling and computer simulation are given...