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solute drag

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Published: 01 November 2007
Fig. 8.11 Segregation of solute atoms to grain boundaries and resultant solute drag More
Image
Published: 01 December 2008
Fig. 5.21 (a) The model for solute drag effect on the migration of grain boundary (the solute drag effect decreases the mobility of the grain boundary M). (b) An electric circuit analogy More
Image
Published: 01 December 2008
Fig. 5.22 Calculated examples of the drag effect due to solute atoms on the grain growth. (a) Energy and the mobility of boundary. (b) Grain growth More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410099
EISBN: 978-1-62708-265-5
... in the isothermal TTT diagram for 4340 steel ( Fig. 6.13 ). Such bays correlate with the presence of substitutional alloying elements that may partition to or from ferrite and concentrate at austenite-ferrite interfaces, creating a solute drag , or significant restraining force, on the formation of bainitic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140071
EISBN: 978-1-62708-264-8
... effect of particle and solute drag. forging grain size heat treatment particle drag phase transformation recrystallization solute drag AS MENTIONED in Chapter 5, “Mechanical Properties,” it is important to keep the grain size of steels as small as possible in order to improve...
Image
Published: 01 December 2008
Fig. 5.20 Motion of solvent atoms and solute atoms according to the grain-boundary movement. (a) Transfer of solvent atoms. (b) Drag of solute atoms More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.t52320123
EISBN: 978-1-62708-357-7
..., the interface energy of solid solutions in an alloy or of a ceramic and a metal is difficult to estimate because it is necessary to consider the chemical interactions between the atoms. The next exercise is the simplest example of calculation. [Exercise 5.3] Show the interface energy of L I /L II when...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860237
EISBN: 978-1-62708-348-5
... Solution strengthening Haasen (1965) Haasen (1968) Fleischer and Hibbard (1963) § 7.2.6 Athermal strengthening by grain boundaries and precipitates Brown and Ham (1971) § 7.3.3 Martensitic transformations Reed (1962) § 7.3.5 Yield points Hahn (1962...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420143
EISBN: 978-1-62708-310-2
... of these substitutional alloying elements will have a significant effect on the reaction kinetics as well. The addition of substitutional elements will decrease the diffusion rate and slow down the reaction kinetics, an effect known as partitioning and solute drag. Much like carbon, these substitutional alloying elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200437
EISBN: 978-1-62708-354-6
... from a surface as a consequence of being exposed to flowing solids, fluids or gases. ACj In hypereutectoid steel, the temperature at which cementite goes into complete solution with austenite. Acj . . . The temperature at which austenite begins to form on heating. Ac3 . . . In hypoeutectoid steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260149
EISBN: 978-1-62708-336-2
..., and similar) have been used particularly for railway rolling stock bodies, load-bearing structures, and welded structures. These alloys respond well in solution heat treatment if the extrusion comes out of the press a little over 400 °C (752 °F), they have a low quench sensitivity, and they maintain good...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240095
EISBN: 978-1-62708-251-8
... and thicken. The change in interface morphology of a succinonitrile-4% acetone solution with increasing solidification velocity is shown in Fig. 7.4 which demonstrates the evolution of a dendritic structure. Fig. 7.3 Dendrite formation and dendritic microstructure in a Cu-10at.%Co alloy. Source Ref...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
... with specially bonded core sand and compacted much like the mold itself. Cores are placed in the drag, or bottom section, of the mold, and the mold is then closed by placing the cope, or top section, over the drag. Mold closing completes the production of the mold, into which the molten metal is then poured...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320063
EISBN: 978-1-62708-332-4
... a tendency to dislocate due to the upward lifting force of buoyancy of the liquid metal. This results in nonuniform wall thickness and, in extreme cases, nonfills. One solution is to use chaplets to support the core in both the drag and the cope. A second alternative is to modify the core print to balance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.t52320259
EISBN: 978-1-62708-357-7
... hand, Mo segregates at pearlite/γ interface, and it makes interface transport slower by the solute drag effect (see Section 5.5.2 ). Appendix: Carburized Pearlite Pearlite was discovered by a founder of steel metallography, H.C. Sorby (1863), and it is a monumental eutectoid structure named...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... solution. It also explains the aspects of a phase diagram that shows what phase or phases are present in the alloy under conditions of thermal equilibrium. Finally, a discussion on the applications of equilibrium phase diagrams is presented. atomic bonding body-centered cubic equilibrium phase...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610461
EISBN: 978-1-62708-303-4
... in individual circumstances: Increase surface hardness. This is a rather obvious solution to abrasive wear problems; however, it may not always be the answer to a specific problem. In cutting tools, such as various types of knives, blades, and the like, increasing the hardness may indeed make...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420303
EISBN: 978-1-62708-310-2
... by the shear displacement of iron atoms into an interstitial, supersaturated solid solution of iron and carbon. This metastable state has bct structure, which is even less densely packed than austenite. This results in lattice distortion that provides strength/hardness by impeding dislocation movements...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720161
EISBN: 978-1-62708-305-8
... added to epoxy mounts for edge retention, but this addition is really not a satisfactory solution. Taper Sectioning Taper sectioning (mounting) generally is regarded as a special mounting technique. It enables the metallographer to examine in greater detail the immediate subsurface structure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850001
EISBN: 978-1-62708-260-0
... and efficiently. Thus, macroetching is an extremely powerful tool and is a cornerstore of the overall quality program. The earliest macroetchants were rather weak solutions used at room temperature. Reaumur (1683-1757) used macroetchants to distinguish between different types of steel and sketched...