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boundary-element method

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040091
EISBN: 978-1-62708-300-3
... conditions of the actual problem are satisfied. Though temperature gradients can be taken into account, this method is limited to problems with simple boundaries [ Becker, 1992 ]. Finite Element Method In the finite element method, the entire solution domain is divided into small finite segments...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420239
EISBN: 978-1-62708-310-2
... Abstract This chapter discusses some of the methods and measurements used to construct phase diagrams. It explains how cooling curves were widely used to determine phase boundaries, and how equilibrated alloys examined under controlled heating and cooling provide information for constructing...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 January 2024
DOI: 10.31399/asm.tb.pdktmse.t56100001
EISBN: 978-1-62708-470-3
... the crystal structure with smaller amounts of another element, such as mercury, inside that crystal. The lower-concentration elements are often thought of as dissolved into the host element. Because the exact composition can vary while the crystal structure remains constant, these special methods of denoting...
Image
Published: 01 June 2016
Fig. 3.3 Lagrangian-based finite-element method simulation of particle impact, showing (a) the initial configuration and boundary conditions, (b) simulated splat shapes for a copper particle impinging a copper substrate, (c) plastic strain profile, and (d) flow stress profile along the radial More
Series: ASM Technical Books
Publisher: ASM International
Published: 31 January 2024
DOI: 10.31399/asm.tb.pdktmse.9781627084703
EISBN: 978-1-62708-470-3
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
...-packed, and body-centered cubic. It then describes the four main divisions of crystal defects, namely point defects, line defects, planar defects, and volume defects. The chapter provides information on grain boundaries of metals, processes involved in atomic diffusion, and key properties of a solid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000017
EISBN: 978-1-62708-313-3
... elimination of grain boundaries with the single-crystal superalloys. 3.1 Solid-Solution Hardening Solid-solution hardening is the attainment of an increase in matrix strength by the addition of a different soluble element. The distortion of the atomic lattice caused by the misfit of atomic radius...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410133
EISBN: 978-1-62708-265-5
... and the other data are for a Fe-0.2%C alloy. To measure austenitic grain size, the prior-austenite grain boundaries must first be revealed. Table 8.1 shows some of the methods used to reveal austenite grain size in steels ( Ref 8.2 ). In the category of delineation by ferrite or cementite, thin grain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030167
EISBN: 978-1-62708-282-2
... elements and impurities to the grain-boundary regions. These heterogeneities, which can also develop during subsequent processing such as welding or heat treatment, can produce different electrochemical characteristics at the grain boundary relative to the grain interior and can lead to intergranular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420363
EISBN: 978-1-62708-310-2
... different circumstances. These are now called semimetals, but have also been called metalloids, meaning like metals. The boundaries separating the regions in the periodic table covered by the different classes of elements are not distinct, except that nonmetals never form positive ions. A simplified...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140071
EISBN: 978-1-62708-264-8
... tension acting on grain-boundary segments contributes to grain growth and how the formation of new grains, driven by phase transformations and recrystallization, lead to a reduction in average grain size. It also discusses the effect of alloying elements on grain growth rates, particularly the curbing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560453
EISBN: 978-1-62708-291-4
... Composition Method of Use Immerse at room temperature. Use Identifies locations of solidification grain boundaries of austenite in ferritic weld metal. Chemical Polish Composition Method of Use Immerse specimen for about 15 s in a freshly prepared solution. Agitate well...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560127
EISBN: 978-1-62708-353-9
... an incremental increase in hardness as a function of alloy content and tempering temperature. Based on the data in Fig. 5-41 , they developed the base curves shown in Fig. 5-42 . The incremental additions for alloying elements are obtained from the curves in Fig. 5-43 . The validity of this method...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720267
EISBN: 978-1-62708-305-8
... Abstract Ultrasonic inspection is a nondestructive method in which beams of high frequency acoustic energy are introduced into a material to detect surface and subsurface flaws, to measure the thickness of the material, and to measure the distance to a flaw. This chapter begins with an overview...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310155
EISBN: 978-1-62708-286-0
... grain boundary-weakening elements on subsequent reheat. Reference Reference 1 Peckner D. and Bernstein I.M. , Handbook of Stainless Steels , McGraw-Hill , 1977 , p 3 – 13 Stainless Steels for Design Engineers Michael F. McGuire DOI: 10.31399/asm.tb.ssde.t52310155 Copyright...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... of equilibrium phase diagrams, the role of enthalpy and Gibb’s free energy in chemical reactions, and a method for determining phase compositions along the solidus and liquidus lines. atomic diffusion body-centered cubic systems crystal defects equilibrium phase diagram face-centered cubic systems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820125
EISBN: 978-1-62708-339-3
... of the fusion zone is the effect of weld metal segregation on corrosion resistance. Because of the segregation of solute elements upon solidification (principally molybdenum, which segregates to the cellular dendritic boundaries of the fusion zone), it is generally accepted that the corrosion resistance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
... 5.5) Y = Π β or (Eq 5.5a) Y = β 1 ⋅ β 2 ⋅ β 3 ⋅ β 4 ⋅ … Each β factor is a correction factor for one boundary condition. The value of K can be determined by a number of analytical methods ( Ref 5.1 , 5.2 ), such as finite element...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000025
EISBN: 978-1-62708-313-3
... = 1.050–1.070 (varies with composition) Cr 23 C 6 (Cr, Fe, W, Mo) 23 C 6 Form of precipitation is important for mechanical properties; it can precipitate as globules, platelets, or lamellae; usually forms at grain boundaries; “M” element is usually Cr, but Ni, Co, Fe, Mo, and W can substitute. M 6...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130285
EISBN: 978-1-62708-284-6
.... It is pointed out that grain-boundary segregation depends on the alloying elements of the steel. Carbon steels with less than 0.5% Mn are not prone to reversible TE. The phenomenon can only appear in alloy steels. Alloying elements may have a different effect on steel after tempering at the steel propensity...