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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 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 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 June 1983
DOI: 10.31399/asm.tb.mlt.t62860001
EISBN: 978-1-62708-348-5
... of engineering-material solid-state elastic constants: general properties; interrelationships; relationships, especially thermodynamic to other physical properties; changes during cooling from ambient to near-zero temperature; and near-zero-temperature behavior. cooling elastic constants temperature...
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...
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...
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
... Abstract Specific heat 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...
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...
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 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 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 June 1983
DOI: 10.31399/asm.tb.mlt.t62860515
EISBN: 978-1-62708-348-5
... of differential amplifiers to eliminate ground loops ( Morrison, 1979 ). 14.3 Temperature Measurement The concept of temperature is based on the cyclic operation of a reversible heat engine. Temperature, then, is established by the laws of thermodynamics and is independent of the properties of the working...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 January 2024
DOI: 10.31399/asm.tb.pdktmse.t56100001
EISBN: 978-1-62708-470-3
... of multiple candidate phases, the one with the lowest (most negative) free energy is the stable one. Thus, thermodynamic properties of various phases in an alloy system can be measured and predictions on what will form based on the composition and temperature can occur. Now, although the same experimental...
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 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
..., the contact angle between the molten braze and the parent material is often high and thus the braze does not spread over the component surfaces. For nonmetals, this situation cannot be remedied with the help of chemical fluxes because these are unable to change the physical properties of the intrinsic...
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...
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
... Abstract Gas-metal reactions can have a significant impact on metals and alloys, affecting their properties (during processing) and accelerating service failures, particularly in hot, corrosive environments. This chapter discusses the kinetics of gas-metal reactions and how they are driven...