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enthalpy of fusion

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Published: 01 November 1995
Fig. 10 Enthalpy of fusion of network-forming oxides as a function of melting point. Source: Ref 5 More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005240
EISBN: 978-1-62708-187-0
... the thermophysical properties of pure metals and some commercial alloys and tabulates the enthalpy of fusion and solidus and liquidus temperatures for various alloys of commercial interest. The article also lists the density, thermal conductivity, surface tension, and viscosity for some commercial alloys...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005589
EISBN: 978-1-62708-174-0
... fusion-zone compositions and describes the effect of fusion welding parameters on dilution. It also provides typical examples of the microstructure and property control in dissimilar weld applications. carbon steel deposition dilution dissimilar metal welding fusion welding joining low-alloy...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005272
EISBN: 978-1-62708-187-0
...% solid when cast, much of the sensible heat and heat of fusion has already been released before injection into a die, and the thermal load on tooling is thus greatly reduced. Figure 3 illustrates enthalpy versus fraction solid for A356 alloy. It can be seen that liquid squeeze casting from a typical...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006672
EISBN: 978-1-62708-213-6
... scanning calorimetry procedures and standards Table 2 Some differential scanning calorimetry procedures and standards Designation Title ASTM D 3418 “Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by DSC” ASTM D 3895...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005523
EISBN: 978-1-62708-197-9
... ), and the enthalpy of fusion for most common elements found in cast metals. Specific heat capacity values and enthalpy of fusion for pure metals Table 3 Specific heat capacity values and enthalpy of fusion for pure metals Element C p = a + bT + cT −2 +… (a) , J/K·mol Temperature range, K...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005514
EISBN: 978-1-62708-197-9
... uncertainties in the determination of the enthalpy of fusion during cooling. Recently, Dong et al. ( Ref 21 , 22 ) presented a numerical model correcting for the effect of heat-transfer coefficients within a DSC. A guide to best practice with DTA and DSC instruments is provided for the interpretation of curves...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006223
EISBN: 978-1-62708-163-4
... calculation also provides parameters that are needed for the simulation of casting processes, such as enthalpy data or driving forces for phase formation, as well as thermodynamic information that is needed for simulations considering kinetic factors. Three Laws of Thermodynamics A physical system...
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006883
EISBN: 978-1-62708-392-8
... Abstract According to International Organization for Standardization (ISO)/ASTM International 52900, additive manufacturing (AM) can be classified into material extrusion, material jetting, vat photo polymerization, binder jetting, sheet lamination, powder-bed fusion (PBF), and directed-energy...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.9781627081740
EISBN: 978-1-62708-174-0
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005208
EISBN: 978-1-62708-187-0
... * The left side of Eq 12 is the difference in enthalpy between the liquid and solid phases, the latent heat of fusion, Δ H ; the right side is the net heat conduction away from the interface. Inserting Δ H gives the Stefan condition: (Eq 13) ρ s Δ H = K s ∇ T s · n * − K L...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005437
EISBN: 978-1-62708-196-2
... À rsHs ¼ KsrTs nà À KLrTL nà (Eq 12) and the initial and boundary conditions are: The left side of Eq 12 is the difference in T ¼ T0 t¼0 (Eq 18) enthalpy between the liquid and solid phases, r¼R (Eq 19) the latent heat of fusion, DH; the right side is ÀK @T ¼ hðT À T0Þ the net heat conduction away from...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005552
EISBN: 978-1-62708-174-0
... Abstract This article overviews the classification of welding processes and the key process embodiments for joining by various fusion welding processes: fusion welding with chemical sources for heating; fusion welding with electrical energy sources, such as arc welding or resistance welding...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006994
EISBN: 978-1-62708-439-0
... a quasi-quantitative comparison for basic analysis and process parameter comparison. In a selective laser powder-bed fusion (L-PBF) system, evidence of laser power as the dominant process parameter is seen in derived parameters, such as normalized enthalpy ( Ref 4 ) and dimensionless keyhole parameter...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001117
EISBN: 978-1-62708-162-7
... 2.135 Enthalpy: K °C kJ/kg 400 127 120 600 327 416 800 527 786 1000 727 1200 Entropy 604 J/kg · K Latent Heat of Fusion 22,000 kJ/kg Latent Heat of Vaporization 34,900 kJ/kg Heat of Combustion 5.4 J/kg Electrical Properties...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001480
EISBN: 978-1-62708-173-3
... Abstract This article focuses on the various assumptions involved in the numerical modeling of welds, including the geometry of the welded structure and the weld joint, thermal stress, strain, residual stress, and the microstructure in the heat-affected and fusion zones. distortion...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005636
EISBN: 978-1-62708-174-0
... Abstract This article provides a comprehensive review and critical assessment of numerical modeling of heat and mass transfer in fusion welding. The different fusion welding processes are gas tungsten arc welding, gas metal arc welding, laser welding, electron beam welding, and laser-arc hybrid...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006352
EISBN: 978-1-62708-179-5
..., thermal diffusivity n Poisson s ratio g austenite, surface energy r density, resistivity G Gibbs-Thomson coef cient rm mold density d disregistry, de ection s stress, electrical conductivity DG free enthalpy t shear stress DH activation energy, heat of fusion V extended volume DK crack tip stress...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002482
EISBN: 978-1-62708-194-8
..., mechanistic, or deterministic models along with their important considerations. It describes the various aspects of modeling of deformation processes, casting operations, and fusion welding processes, with examples. casting deformation deterministic models empirical models fusion welding...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005718
EISBN: 978-1-62708-171-9
... spray processes are high-enthalpy (high energy density) processes, they are characterized as having high coating rates relative to other coating processes, for example, chemical vapor deposition, physical vapor deposition, and electroplating. Additionally, thermal spray processes are capable...