1-20 of 153 Search Results for

heat transfer partitioning

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001335
EISBN: 978-1-62708-173-3
... heat transferred to the base metal; partitioning of heat transfer between the arc and the molten electrode droplets; transfer modes of the droplets; role of the arc in droplet transfer; and simple model for welding procedure development based on an understanding of heat and mass transfer to the base...
Image
Published: 31 October 2011
Fig. 3 Plot of heat-transfer efficiency to base metal versus electrode speed for 0.89 mm (0.035 in.) diameter steel electrode in an Ar-2% O 2 shield gas. Total heat-transfer efficiency is shown partitioned into arc and molten drop components. Power supply open-circuit voltage, E O , is 32 V More
Image
Published: 01 January 1993
Fig. 2 Plot of heat-transfer efficiency to base metal versus electrode-speed for 0.89 mm (0.035 in.) diameter steel electrode in an Ar-2% O 2 shield gas. Total heat-transfer efficiency is shown partitioned into arc and molten drop components. Power supply open-circuit voltage, E 0 , is 32 V More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005621
EISBN: 978-1-62708-174-0
... transfer modes occur; globular transfer occurs at lower electrode speeds, and electrode contacts the weld pool at higher electrode speeds. Source: Ref 1 The issues described in this article include the following: Total heat transferred to the base metal Partitioning of heat transfer...
Book Chapter

Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005816
EISBN: 978-1-62708-165-8
... Volumes in Subcooled Boiling , U.S. National Heat Transfer Conference ( Chicago ), 1985 54. Basu N. , Warrier G.R. , and Dhir V.K. , Wall Heat Flux Partitioning during Subcooled Flow Boiling, Part 1: Model Development , J. Heat Transf. , Vol 127 ( No. 2 ), 2005 , p 131 – 140...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005226
EISBN: 978-1-62708-187-0
... the liquidus isotherm velocity for a given heat-transfer situation. This quantity plays a much more fundamental role than cooling rate in understanding rapid solidification microstructures. Heat sinks can be classified as external or internal. External Heat Sinks External heat sinks are massive...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005237
EISBN: 978-1-62708-187-0
.... The simulation, however, is for a slab-shaped ingot with two- dimensional Cartesian coordinates. Even so, the calculation is very time-consuming. The fully solidifed domain is 43 cm (17 in.) wide (half-width of the slab) and 165 cm (65 in.) high. In addition to Lorentz forces, heat-transfer coefficients on each...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005542
EISBN: 978-1-62708-197-9
... )                         = ∇ ⋅ ( k ∇ T ) − p ∇ ⋅ v + τ : D + Q ˙   H = enthalpy density   p = pressure   D = rate of deformation tensor   τ : D = work done by the shear stress   Q = rate of heat transfer  Solute balance ∂ ρ C ∂ t + ∇ ⋅ ( ρ C v...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003594
EISBN: 978-1-62708-182-5
... serve as high-temperature reducing agents in the production of metals (such as the use of molten magnesium to produce titanium), and, because of their excellent heat- transfer properties, liquid metals have been used or considered as coolants in a variety of power- producing systems. Examples...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005520
EISBN: 978-1-62708-197-9
... heat-transfer and Darcy flow model. They first solve the thermal problem in a commercial code and then use the same mesh to solve the pressure drop and hydrogen partitioning in the mushy zone, using their own code. Using this framework, they tested the influence of the nucleation supersaturation...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005525
EISBN: 978-1-62708-197-9
... equations. heat transfer properties mass transfer coefficient metals and alloys numerical methods solidification IN THE PROCESSING OF MOST METAL PRODUCTS, a critical step is the solidification of an alloy from a melt to make an ingot or a part with a particular shape. Frequently...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001336
EISBN: 978-1-62708-173-3
... cases of electron discharge at the cathode: thermionic emission and nonthermionic emission, also called cold cathode, or field emission. It schematically illustrates relative heat transfer contributions to workpiece in the GTAW process. The article provides information on the effects of cathode tip...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005664
EISBN: 978-1-62708-174-0
...-transfer control. arc length control arc welding gas metal arc welding gas tungsten arc welding heat input control metal-transfer control voltage control THIS ARTICLE provides basic physics needed to understand two most widely used arc welding processes: gas tungsten arc welding (GTAW...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006370
EISBN: 978-1-62708-192-4
... asperities in metal forming. It presents advanced tribology models and results for friction in isothermal forging operations in which the tooling is maintained at a temperature close to that of the workpiece. The article provides information on heat transfer models. It discusses the effect of wear...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005501
EISBN: 978-1-62708-197-9
... applications are presented. casting casting defects ductile cast iron hot tearing macrosegregation microstructure porosity solidification thermophysical properties CASTING AND SOLIDIFICATION PROCESSES are modeled in terms of thermodynamics, heat transfer, fluid flow, stress, defect formation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001239
EISBN: 978-1-62708-170-2
... typical conditions ( Ref 20 ). If this load is assumed to act on a particle sliding at a velocity less than 0.5 m/s, a heat partition and heat-transfer analysis carried out along the lines of the grinding calculations described earlier shows that the maximum temperature rise at the work surface...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001052
EISBN: 978-1-62708-161-0
.... No such change occurred after the higher-temperature, coarse grain heat-treatment, during which all γ′ particles were initially dissolved. Cobalt was observed through scanning transmission electron microscopy and energy dispersive spectroscopy to partition mostly to the γ matrix phase. Cobalt also changed...
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
... of powerful techniques for solving problems in pattern recognition, data analysis, and control. Neural networks represent a complex, trainable, nonlinear transfer function between inputs and outputs. This allows an effective solution to be found to complex, nonlinear problems such as heat distribution...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... Abstract Heat exchangers are devices used to transfer thermal energy between two or more fluids, between a solid surface and a fluid, or between a solid particulate and a fluid at different temperatures. This article first addresses the causes of failures in heat exchangers. It then provides...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005510
EISBN: 978-1-62708-197-9
... Abstract This article provides an overview of the studies on computational modeling of the vacuum arc remelting (VAR) and electroslag remelting (ESR) processes. These models involve the axisymmetric analysis of the electromagnetic, flow, heat-transfer, and phase-change phenomena to predict...