Skip Nav Destination
Close Modal
By
Avinash Gore, Shashanka Rajendrachari
Search Results for
boundary-element method
Update search
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
NARROW
Format
Topics
Book Series
Date
Availability
1-20 of 611
Search Results for boundary-element method
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
1
Sort by
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...
Abstract
There are numerous approximate methods, both analytical and numerical, for analyzing forging processes. None are perfect because of the assumptions made to simplify the mathematical approach, but all have merit. This chapter discusses the slab, upperbound, and finite element methods, covering basic principles, implementation, and advantages and disadvantages in various applications.
Book Chapter
Phase Diagram Determination
Available to PurchaseSeries: 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...
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 isothermal and vertical sections as well as liquid projections. It also explains how diffusion couples provide a window into local equilibria and identifies typical phase diagram construction errors along with problems stemming from phase-boundary curvatures and congruent transformations.
Book Chapter
Phase Diagram Fundamentals
Available to PurchaseSeries: 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...
Abstract
Phase diagrams serve as a map to the phases present in an alloy at different temperatures and compositions. They also help in assessing mechanical properties, selecting heat treat temperatures, warning of possible solidification problems, and identifying routes for creating desired microstructures. This chapter familiarizes readers with the information contained in binary phase diagrams and the methods used to extract it. It explains how thermocouple measurements are used to determine liquidus, solidus, and eutectic reaction lines, how differential scanning calorimetry shows where phase reactions occur, and how x-ray diffraction identifies the actual phases present. It demonstrates the use of tie lines for determining phase composition at different temperatures and the application of the level rule to calculate phase fractions. It also discusses the CALPHAD method and presents computed binary phase diagrams that account for the presence of inclusions, oxygen content, and secondary phases.
Book Chapter
Structure of Metals and Alloys
Available to PurchaseSeries: 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...
Abstract
The building block of all matter, including metals, is the atom. This chapter initially provides information on atomic bonding and the crystal structure of metals and alloys, followed by a description of three crystal lattice structures of metals: face-centered cubic, hexagonal close-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 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.
Image
Lagrangian-based finite-element method simulation of particle impact, showi...
Available to PurchasePublished: 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
Book Chapter
Austenite in Steel
Available to PurchaseSeries: 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...
Abstract
Austenite is the key to the versatility of steel and the controllable nature of its properties. It is the parent phase of pearlite, martensite, bainite, and ferrite. This chapter discusses the importance of austenite, beginning with the influence of austenitic grain size and how to accurately measure it. It then describes the principles of austenite formation and grain growth and examines several time-temperature-austenitizing diagrams representing various alloying and processing conditions. The chapter concludes with a discussion on hot deformation and subsequent recrystallization.
Book Chapter
Strengthening Mechanisms
Available to PurchaseSeries: 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...
Abstract
This chapter discusses the metallurgical changes that occur and the improvements that can be achieved in superalloys through solid-solution hardening, precipitation hardening, and dispersion strengthening. It also explains how further improvements can be achieved through the control of grain structure, as in columnar-grained alloys, or by the elimination of grain boundaries as with single-crystal superalloys.
Book Chapter
Review of Metallic Structure
Available to PurchaseSeries: 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...
Abstract
This appendix provides a detailed overview of the crystal structure of metals. It describes primary bonding mechanisms, space lattices and crystal systems, unit cell parameters, slip systems, and crystallographic planes and directions as well as plastic deformation mechanisms, crystalline imperfections, and the formation of surface or planar defects. It also discusses the use of X-ray diffraction for determining crystal structure.
Book Chapter
Comparing the Microstructure of Components Prepared by Various Powder Metallurgy and Casting Methods
Available to PurchaseSeries: ASM Technical Books
Publisher: ASM International
Published: 30 September 2024
DOI: 10.31399/asm.tb.pmamfa.t59400141
EISBN: 978-1-62708-479-6
... and carbide dispersions, porosity, dendritic formation, and properties such as hardness, toughness, tensile strength, and yield strength. carbide formation casting composition grain boundaries hardness mechanical strength microstructure porosity powder metallurgy TRADITIONALLY, METALS...
Abstract
This chapter examines the microstructure of metallic components produced by casting and compares them with microstructures achieved by means of powder metallurgy. It shows how metals and alloys obtained by various processing routes differ in terms of grain size, secondary phases, oxide and carbide dispersions, porosity, dendritic formation, and properties such as hardness, toughness, tensile strength, and yield strength.
Book Chapter
Introduction to Corrosion Resistance of Bulk Materials
Available to PurchaseSeries: 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...
Abstract
This chapter discusses the factors influencing the corrosion resistance of bulk materials, namely alloying, metallurgical factors, and mechanical treatments.
Book Chapter
Tempering
Available to PurchaseSeries: 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...
Abstract
This chapter first examines the tempering behavior of plain carbon steels and then that of alloy steels. Next, some correlations are examined which allow estimations of the tempered hardness from the chemical compositions, tempering temperature and tempering time. The chapter then describes the effect of tempering on the mechanical properties of plain carbon steels and the microstructure of plain carbon steels. It shows examples of the structure of plain carbon steels. Additionally, the chapter explains the stages and kinetics of tempering in alloy steels and plain carbon steels. It also describes some methods of estimating the hardness. Finally, the chapter discusses the important problem of temper embrittlement.
Book Chapter
Control of Grain Size by Heat Treatment and Forging
Available to PurchaseSeries: 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...
Abstract
Grain size has a determining effect on the mechanical properties of steel and responds favorably to forging and heat treating. This chapter explains how to measure and quantify grain size and how to control it through thermal cycling and forging operations. It describes how surface 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 effect of particle and solute drag.
Book Chapter
Ultrasonic Inspection
Available to PurchaseSeries: 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...
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 of ultrasonic flaw detectors, ultrasonic transducers, and search units and couplants. It then discusses the principles of operation, presentation, and interpretation of data of pulse echo and transmission methods. This is followed by sections providing information on general characteristics of ultrasonic waves and the factors influencing ultrasonic inspection. The advantages, disadvantages, and applications of ultrasonic inspection are finally compared with other methods of nondestructive inspection of metal parts.
Book Chapter
Structure of Metals and Alloys
Available to PurchaseSeries: 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...
Abstract
This chapter introduces many of the key concepts on which metallurgy is based. It begins with an overview of the atomic nature of matter and the forces that link atoms together in crystal lattice structures. It discusses the types of imperfections (or defects) that occur in the crystal structure of metals and their role in mechanical deformation, annealing, precipitation, and diffusion. It describes the concept of solid solutions and the effect of temperature on solubility and phase transformations. The chapter also discusses the formation of solidification structures, the use 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.
Book Chapter
Corrosion of High-Nickel Alloy Weldments
Available to PurchaseBook: Corrosion of Weldments
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...
Abstract
Nickel-base alloys used for low-temperature aqueous corrosion are commonly referred to as corrosion-resistant alloys (CRAs), and nickel alloys used for high-temperature applications are known as heat-resistant alloys, high-temperature alloys, or superalloys. The emphasis in this chapter is on the CRAs and in particular nickel-chromium-molybdenum alloys. The chapter provides a basic understanding of general welding considerations and describes the welding metallurgy of molybdenum-containing CRAs and of nickel-copper, nickel-chromium, and nickel-chromium-iron CRAs. It discusses the corrosion behavior of nickel-molybdenum alloys and nickel-chromium-molybdenum alloys. Information on the phase stability and corrosion behavior of nickel-base alloys is also included.
Book Chapter
Melting, Casting, and Hot Processing
Available to PurchaseSeries: 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...
Abstract
This article discusses the steps in the primary processing of stainless steels: melting, refining, remelting, casting, and hot rolling. It provides information of the major categories of defects in hot rolled stainless steels, namely hot mill defects, inclusion-related defects, and hot ductility-related defects.
Book Chapter
Etching Methods
Available to PurchaseSeries: 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...
Abstract
This appendix provides information on the chemical composition, method of use, and applications of various etchants used in the metallography of carbon steels.
Book Chapter
Phases and Microstructure of Superalloys
Available to PurchaseSeries: 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...
Abstract
The microstructure of superalloys is highly complex, with a large number of dispersed intermetallics and other phases that modify alloy behavior through their composition, morphology, and distribution. This chapter provides an overview of the most notable phases, including the matrix phase and geometrically and topologically close-packed phases, and describes how superalloy microstructure can be modified via heat treatments and directional solidification. It also discusses the role of carbides, borides, oxides, and nitrides and the detrimental effects of sulfocarbides.
Book Chapter
Damage Tolerance of Metals
Available to PurchaseSeries: 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...
Abstract
This chapter presents a fracture-mechanics-based approach to damage tolerance, accounting for mechanical, metallurgical, and environmental factors that drive crack development and growth. It begins with a review of stress-intensity factors corresponding to a wide range of crack geometries, specimen configurations, and loading conditions. The discussion covers two- and three-dimensional cracks as well as the use of correction factors and problem-simplification techniques for dealing with nonstandard configurations. The chapter goes on to describe how fatigue loading affects crack growth rates in each of the three stages of progression. Using images, diagrams, and data plots, it reveals how cracks advance in step with successive stress cycles and explains how fatigue crack growth rates can be determined by examining striations on fracture specimens and correlating their widths with stress profiles. It also describes how material-related factors, load history, corrosion, and temperature affect crack growth rates, and discusses the steps involved in life assessment.
1