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point defects

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Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... Point defects: A, interstitial atom; B, vacancy; C, foreign atom in lattice site Fig. 7 Section through an edge dislocation (indicated by the symbol ⊥) with an axis perpendicular to the plane of the illustration and line dislocation. (a) Positive edge dislocation, (b) negative edge dislocation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240017
EISBN: 978-1-62708-251-8
... an important role in processes such as deformation, annealing, precipitation, diffusion, and sintering. All defects and imperfections can be conveniently classified under four main divisions: point defects, line defects, planar defects, and volume defects. This chapter provides a detailed discussion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240117
EISBN: 978-1-62708-251-8
... that occur during recovery are the annihilation of excess point defects, the rearrangement of dislocations into lower-energy configurations, and the formation of subgrains that grow and interlock into sub-boundaries. The article also discusses the main factors that affect recrystallization...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2021
DOI: 10.31399/asm.tb.ciktmse.t56020001
EISBN: 978-1-62708-389-8
... and their relevance in design and manufacturing. It begins with a review of compositional impurities, the physical arrangement of atoms in solid solution, and the factors that determine maximum solubility. It then describes different types of structural imperfections, including point, line, and planar defects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420363
EISBN: 978-1-62708-310-2
..., crystalline imperfections, and the formation of surface or planar defects. It also discusses the use of X-ray diffraction for determining crystal structure. crystalline structures line defects metallic structure planar defects plastic deformation point defects volume defects X-ray diffraction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
...Abstract Abstract This chapter discusses the use of modeling and simulation technology in the development of sheet metal forming processes. It describes the five major steps involved in finite-element analysis and the various ways functions of interest can be approximated at each point or node...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270173
EISBN: 978-1-62708-301-0
...Abstract Abstract A titanium alloy disc on the fourth stage of an aircraft engine compressor was found cracked in the course of a defect investigation. The disc had not yet reached the halfway point of its expected service life. The chapter explains how the crack was examined and provides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110228
EISBN: 978-1-62708-247-1
... and increasing the size of the site. Figure 17 An example finding a point site, which looks larger and more complex in conventional LADA. The point site at t 0 +200ps is the location of a defective gate contact. [17] Figure 6 A magnified LADA image acquired with a dwell time that is faster...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
...-copper phase diagram, showing the liquidus and solidus lines. The freezing range between these two lines consists of a mixture of liquid and solid metal. Fig. 2.12 Point defects: A, interstitial atom; B, vacancy; C, foreign atom in lattice site Fig. 2.13 Section through an edge...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2021
DOI: 10.31399/asm.tb.ciktmse.9781627083898
EISBN: 978-1-62708-389-8
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870375
EISBN: 978-1-62708-344-7
...-temperature fatigue testing Fig. A.48 Torsion of a solid bar Fig. A.12 Point defects. (a) Vacancy. (b) Interstitial. (c) Foreign atom. Source: Ref A.22 Fig. A.33 Representation of relative tensile strength and ductility of ausformed steels (highly deformed) compared...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310057
EISBN: 978-1-62708-286-0
.... These include differences in lattice mismatch, alloy depletion in the metal, point-defect gradients in scales containing oxides such as FeO, with large deviation from stoichiometry, recrystallization, and volume differences between the oxide and metal. The last is perhaps the most commonly mentioned...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110524
EISBN: 978-1-62708-247-1
..., laboratory (“ALT”) aged VCSELs, and VCSELs with ❬100❭ DLDs. The line scans were taken from the devices shown in the previous figure, and oriented from the darkest to the lightest points. Fig 18 Image with spectral filter outside the mirror stop band (left) shows high contrast, where images...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460017
EISBN: 978-1-62708-285-3
... instabilities (ASI) ( Ref 2.23 , 2.34 , 2.41 ). Temperatures close to the melting point of the material can then be attained, resulting in viscous flow of the material and eliminating the stress. Under these conditions and at these temperatures, excellent metallurgical bonding to the substrate or between...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430027
EISBN: 978-1-62708-253-2
... information on the atomic structure of metals, the nature of alloy phases, and the mechanisms involved in phase transformations, including time-temperature effects and the role of diffusion, nucleation, and growth. It also discusses alloying, heat treating, and defect formation and briefly covers condenser...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110323
EISBN: 978-1-62708-247-1
... and a schematic of the probed trace are shown. Probe tip locations are visible in the two EBAC signals. The red arrows points to the location of the defect. Figure 17 A TEM image of a defect identified using four terminal probing resistance measurements. Figure 18 An EBIRCH image on the left...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110550
EISBN: 978-1-62708-247-1
... to pinpoint the defective location ( Figure 10 ). EBAC did not show variation in the current path since it is a resistive open at this point due to possible smearing from the mechanical sample preparation. LIT isolated the possible defect location by providing a hotspot at the smeared micropillar (which...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
..., and dimensional inspection. Casting defects including porosity, oxide films, inclusions, hot tears, metal penetration, and surface defects are reviewed. Liquid penetrant inspection, magnetic particle inspection, eddy current inspection, radiographic inspection, ultrasonic inspection, and leak testing for castings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110132
EISBN: 978-1-62708-247-1
... from the package design file, from which T A 1 can be calculated. Then, T 13 can be obtained by subtracting T A 1 from T A 3 . Once time taken( T 13 ) to travel point 1 to point 3 is determined, defect location L 13 can be calculated with VF 13 from which the signal speed traveling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130151
EISBN: 978-1-62708-284-6
... a metallurgical point of view or, depending on the cost-benefit ratio, is not justified. This defect is usually seen, but can occur and be unnoticed initially, in components with complex geometry and abrupt variation of mass, where it is used to obtain a large number of cores that could provide details difficult...