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Burgers vector

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2021
DOI: 10.31399/asm.tb.ciktmse.t56020001
EISBN: 978-1-62708-389-8
... planes, and dislocation passage through precipitates. It also points out important structure-property correlations. antisite defects Burgers vector edge dislocations Frenkel defects grain size impurities mechanical properties pinning Schottky defects screw dislocations solid solution...
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 October 2021
DOI: 10.31399/asm.tb.ciktmse.t56020013
EISBN: 978-1-62708-389-8
... a block of crystal. The right figure shows what happens when the sheared block on the right encounters some obstacles. What dislocation has been formed as a result of such obstacles? Mark the Burgers vector for this dislocation using the RH/SF convention as illustrated by the indicated screw...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240017
EISBN: 978-1-62708-251-8
... stresses help make more room for them. Fig. 2.5 Line dislocation Fig. 2.6 Stress fields around line dislocations A quantitative description of dislocations is given by the Burgers vector, b , illustrated in Fig. 2.7 . This vector is defined using what is called the Burgers circuit...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230151
EISBN: 978-1-62708-298-3
.... Dislocations that have Burgers vectors with c-axis components are not energetically favored and therefore are not found in samples that have been deformed at low temperatures. These elastic compliances give an elastic modulus of over 300 GPa, which is higher than that of almost all other metals. Coupled...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540357
EISBN: 978-1-62708-309-6
... (dislocation) from a position in (a) to the edge in (c). The vector b is the Burgers vector, which is defined as the unit displacement of a dislocation. Source: Ref A1.1 Slip from shear stress is the most common deformation mechanism within crystalline lattices of metallic materials, although...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420363
EISBN: 978-1-62708-310-2
.... A.44 Frank-Read mechanism for dislocation multiplication. Source: Ref A.1 Fig. A.45 Examples of dislocation interactions. Source: Ref A.1 Fig. A.35 Burgers circuit and vector for line dislocation. Source: Ref A.5 as published in Ref A.1 Fig. A.36 Screw...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410017
EISBN: 978-1-62708-265-5
... are represented as the dislocation line at the bottom edge of an incomplete atom plane in a crystal, and the magnitude and direction of the resulting discontinuity is designated as the Burgers vector. As the dislocation moves across a slip plane, from (a) to (d), the top part of the crystal is displaced relative...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410213
EISBN: 978-1-62708-265-5
... is the dislocation Burgers vector, l is the average effective dislocation line free length at some moment during strain hardening, and ρ is the dislocation density. Equation 11.1 clearly relates increases in flow stress during strain hardening to dynamic dislocation interactions and increases in dislocation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480051
EISBN: 978-1-62708-318-8
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240117
EISBN: 978-1-62708-251-8
... At slightly higher temperatures, the rearrangement of dislocations occurs, and, in the process, the annihilation of dislocations of opposite signs (of the Burger’s vector) takes place. The rearrangement of dislocations is assisted by thermal energy, which aids in both climb and slip mechanisms. Since...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870237
EISBN: 978-1-62708-344-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870375
EISBN: 978-1-62708-344-7
... area is the dislocation; it is perpendicular to the slip vector. (b) Arrangement of atoms around the edge dislocation shown in (a). The plane of the figure is parallel to the slip area and CD the dislocation. The open circles represent atoms in the atomic plane just above the slip plane...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410405
EISBN: 978-1-62708-265-5
... 18.29 ). The flow stress, τ, at a given strain is given by: (Eq 18.1) τ = τ 0 +  constant  × G b / l where τ 0 is the friction stress for dislocation motion in a crystal structure without other obstacles, G is the shear modulus, b is the Burgers vector of active dislocations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860295
EISBN: 978-1-62708-348-5
... of Martensite and Bainite . Special Report 93, Iron and Steel Institute , London , 43 – 47 . Klostermann J. A. and Burgers W. G. ( 1964 ). Surface martensite in iron–nickel . Acta Metall . 12 , 355 – 360 . 10.1016/0001-6160(64)90004-5 Krauss G. and Cohen M. ( 1962...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
...: Ref 4 Fig. 5 Creep data for several face-centered cubic metals plotted as a function of normalized shear stress (σ s / G ) compared with a power law stress exponent of n = 4. b, Burgers vector. Source: Ref 5 Fig. 6 Creep data for several body-centered cubic metals plotted...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.9781627083447
EISBN: 978-1-62708-344-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.9781627083485
EISBN: 978-1-62708-348-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.9781627083409
EISBN: 978-1-62708-340-9