1-20 of 170 Search Results for

freezing

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 Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420429
EISBN: 978-1-62708-310-2
... of planar, cellular, and dendritic growth, the basic freezing sequence for an alloy casting, and the variations in cooling rate, heat flow, and grain morphology in different areas of the mold. It also describes the types of segregation that occur during freezing, the effect of solidification rate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420117
EISBN: 978-1-62708-310-2
...Abstract Abstract This chapter discusses the phase transformations of peritectic alloy systems. It describes the processes involved with equilibrium and nonequilibrium freezing, the mechanisms of peritectic formation, and the resulting microstructures. It also discusses the formation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730011
EISBN: 978-1-62708-283-9
... some of the metallurgical effects of freezing or solidification, including the segregation of solutes and the formation of metal glasses. freezing interstitial solid solutions metal glasses phase diagrams phase relations phases substitutional solid solutions Phases Solid Solutions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240095
EISBN: 978-1-62708-251-8
... that a metal cast into a mold can have: a chill zone, a zone containing columnar grains, and a center-equiaxed grain zone. Since the way in which alloys partition on freezing, it follows that all castings are segregated to different categories. The different types of segregation discussed include normal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140005
EISBN: 978-1-62708-264-8
... by dissolving something into a liquid, the freezing temperature of the liquid will decrease. This, of course, is why calcium chloride (CaCl 2 ) salt is used on streets and sidewalks during the winter months. The salt dissolves into the rain water and drops its freezing temperature, so that ice will not form...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420191
EISBN: 978-1-62708-310-2
... Plots Vertical Sections (Isopleths) Application of the Phase Rule Equilibrium Freezing of Solid-Solution Alloys Three-phase equilibrium in ternary systems occurs over a temperature range and not, as in binary systems, at a single temperature. It is bivariant: F = C + 2 − P...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140165
EISBN: 978-1-62708-264-8
... as it solidifies inward from the mold walls. Because the solid is denser than the liquid, a volume contraction occurs upon solidification, causing the height of the solid to decrease as it freezes toward the crucible center. The inset on the right shows a section from the left side of the crucible, where the solid...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240075
EISBN: 978-1-62708-251-8
... the vaporization line, and liquid and solid phases along the freezing line. Fig. 6.1 Pressure-temperature diagram for pure metal The phase rule, developed by Willard Gibbs in 1876, allows the determination of the number of phases that can coexist in equilibrium: (Eq 6.1) P + F = C + 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... melting point and narrower freezing range for better fluidity of the molten metal than noneutectic alloy compositions. Regardless of the production technique, cast alloys (ingots and castings in general) may possess a variety of microstructural imperfections such as inclusions, porosity, dissolved...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420239
EISBN: 978-1-62708-310-2
... are then analyzed for deviations from the smooth curve found for materials undergoing no phase changes ( Fig. 12.1 ). Fig. 12.1 Ideal cooling curve with no phase change. Source: Ref 12.1 When a pure element is cooled through its freezing temperature, its temperature is maintained near...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420073
EISBN: 978-1-62708-310-2
... produce segregation in the solidification products. As an example of a type of segregation called coring, produced by nonequilibrium freezing, consider the 70% Ni-30% Cu alloy in Fig. 4.10 that is rapidly cooled from a temperature, T 0 . The first solid forms at temperature T 1 with a composition...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140001
EISBN: 978-1-62708-264-8
... to cool water to make it transform to ice (freeze). This means heat is removed from the liquid at the freezing temperature. The same effect occurs when metals freeze; heat is removed from the metal. So, when a hot metal cools to its freezing point, heat is given off from the freezing liquid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480031
EISBN: 978-1-62708-318-8
... Binary phase diagram of metals A and B, which are partially soluble in the solid state Fig. 2.2 Rapid dendritic growth is observed in liquids that have been undercooled below the freezing temperature. The latent heat of fusion, released by the solidificatio process, raises the temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230253
EISBN: 978-1-62708-298-3
... and solidification rates needs a more thorough understanding for casting designers to achieve a sound technical approach to obtain the desirable refined cast grain structure. When a pure metal or alloy freezes, the shape of the S/L interface plays a major role in determining the cast structure and properties...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
... problems in any of the areas mentioned. While some of these uses have previously been discussed, phase diagrams are used to: Predict the temperature at which freezing or melting begins or ends for any specific alloy composition in an alloy system . A vertical line represents the composition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420001
EISBN: 978-1-62708-310-2
...) to the melting point of copper at 1083 °C (1981 °F). Of these, the upper curve, called the liquidus, denotes for each possible alloy composition the temperature at which freezing begins during cooling or, equivalently, at which melting is completed on heating. The lower curve, called the solidus, indicates...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
... be extruded or blow molded. Single crystals may be grown by directional solidification. With the Bridgman technique, a mold is slowly removed from a furnace ( Fig. 13.1 ). Freezing starts at one end and slowly progresses to the other. Because freezing starts at a point, only one crystal is nucleated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410103
EISBN: 978-1-62708-280-8
... Fig. 6.25 Freeze block Fig. 6.26 Body structural elements Fig. 6.27 Shock tower schematic Fig. 6.28 Valve less and vacuum valve systems Fig. 6.29 Metal transfer systems in high-vacuum die casting, (a) vertical, (b) horizontal Fig. 6.21 PQ 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260119
EISBN: 978-1-62708-336-2
... of Billet Cracking and Splitting Segregation Bleeding Cold Shutting Porosity Grain Growth Pouring Temperature Casting Speed Types of Molds Metal Head Rate of Water Flow Billet Scalping In the solidification system, metal starts freezing from the outer skin...