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thermal modeling

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040193
EISBN: 978-1-62708-300-3
... modeling are the thermal conductivity, heat capacity, and emissivity of the workpiece and die materials. These parameters are usually defined as a function of temperature, The flow stress of the workpiece material is very important for the correct prediction of metal flow behavior. It is usually defined as...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
.... , Gärtner F. , Nanbu T. , Kawashita Y. , and Uehara Y. , “ Modelling of Impact and Bonding of Inhomogeneous Particles in Cold Spraying ,” International Thermal Spray Conference , May 2014 3.52 Kang K. , Yoon S. , Ji Y. , and Lee C. , Oxidation Dependency of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040247
EISBN: 978-1-62708-300-3
... model uses the thermal-mechanical history of the hammer forging to predict the recrystallization and grain size of the hammer-forged 718 disk. Figures 19.8 and 19.9 show that the fraction of recrystallization and the ASTM average grain size predicted by the model agree well with the experimentally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780115
EISBN: 978-1-62708-281-5
... Abstract This article covers the thermal analysis and thermal properties of engineering plastics with respect to chemical composition, chain configuration, and/or conformation of the base polymers. The thermal analysis techniques covered are differential scanning calorimetry, thermogravimetric...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780295
EISBN: 978-1-62708-281-5
... ). Thermal expansion, thermal diffusivity, and the variation of mechanical properties with temperature are factors that engineers need to be familiar with in working thermal stresses. A researcher ( Ref 4 ) formulated a model for amorphous polymers encompassing these parameters. He modeled inhomogeneous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780089
EISBN: 978-1-62708-281-5
... Materials and Mechanics Research Center , Sept 1983 72. Provder T. , Neag C.M. , Carlson G. , Kuo C. , and Holsworth R.M. , Cure Reaction Kinetics Characterization of Some Model Organic Coatings Systems by FT-IR and Thermal Mechanical Analysis , Anal. Calorim. , Vol 5...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110196
EISBN: 978-1-62708-247-1
... Abstract This article reviews the basic physics behind active photon injection for local photocurrent generation in silicon and thermal laser stimulation along with standard scanning optical microscopy failure analysis tools. The discussion includes several models for understanding the local...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110652
EISBN: 978-1-62708-247-1
... power upon pulse length for high current square waveform pulses is illustrated in Fig. 1 and described by the following one-dimensional electro-thermal equation known as the Wunsch-Bell Model [6] . Figure 1 The Wunsch-Bell Model for Junction Failure. This relationship describes the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130001
EISBN: 978-1-62708-284-6
... heat treatment processes, like other materials processes such as casting and welding, is quite complex due to the tight coupling of various metallurgical transformations and the associated changes in thermal and mechanical states. A heat-transfer model, coupling with a phase transformation model, a...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... Aerospace Composites Exposed to Thermal Cycling: Effect of Composite Lay-up, Laminate Thickness and Thermal Ramp Rate , 33rd International SAMPE Technical Conference , Nov 2001 , p 120 – 128 • Griffith J.M. , Campbell F.C. , and Mallow A.R. , Effect of Tool Design on Autoclave...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... insert will need to be manufactured. The second most common cause of die failure is fatigue fracture. Fatigue occurs as the result of the continual stress cycles that the dies are subjected to. The stress cycles are attributed to both mechanical and thermal loading and unloading of the dies. Fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110666
EISBN: 978-1-62708-247-1
... Extreme Value Distribution (EVD) is a derivative version of the Weibull distribution that is sometimes used in reliability calculations. Gumbel [11] provides more information on the EVD. The Arrhenius Model is a pure thermal acceleration model derived from basic thermodynamics and developed by...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... ( Ref 6 ) performed an excellent study using numerical methods to calculate the nonsteady-state temperature distribution in extrusion through conical dies. They included the temperature dependencies of the flow stress and of the thermal constants of the billet and the tool materials into the analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090001
EISBN: 978-1-62708-266-2
...-intensity on crack propagation rates, and describes several mechanical fracture models, including corrosion tunnel, film-induced cleavage, and tarnish rupture models. crack initiation crack propagation stress-corrosion cracking STRESS-CORROSION CRACKING (SCC) is a term used to describe service...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940127
EISBN: 978-1-62708-302-7
... Abstract This chapter develops a corrosion model that accounts for solution potentials and the effects of coupling between cathodic and anodic reactions. It begins by examining potential differences at various points (in the solution) along a path from the anode to the cathode area. It then...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780343
EISBN: 978-1-62708-281-5
... pertinent to structure analysis. This is followed by a review of the characterization of plastics by infrared and nuclear magnetic resonance spectroscopy. The article then provides information on the distribution of molecular weight of an engineering plastic. It further discusses the methods used in thermal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
... not perceive that such a result is possible at this stage for nickel-base superalloys. Modeling of solidification kinetics and microstructural response to mechanical and thermal influences may be feasible. However, the essence of all modeling of such processes is the need for materials property...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090191
EISBN: 978-1-62708-266-2
... , 6.51 ). Thermal diffusion data show that nickel diffuses slowly and that chromium diffuses rapidly in these materials, which implies that nickel should become enriched near grain boundaries and chromium should become depleted. This model provides good agreement...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280365
EISBN: 978-1-62708-267-9
... Society for Metals , 1980 , p 220 – 229 • Holt R.T. and Wallace W. , Impurities and Trace Elements in Nickel-Base Superalloys , Int. Met. Rev. , Vol 21 , 1976 , p 1 – 24 • Woodford D.A. and Mowbray D.F. , Effect of Material Characteristic on Thermal Fatigue of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
... benchmark problem number 3. A two-dimensional section was initially chosen to study closely such effects as thermal expansion and shrinkage of the part, varying contact conditions between die and tool, and heat transfer between tool and part. Simulation of hot stamping was modeled according to process...