Dislocations, mesoscale simulations and plastic flow:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Oxford
Oxford Univ. Press
2013
|
| Ausgabe: | 1. ed. |
| Schriftenreihe: | Oxford Series on Materials Modelling
5 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Klappentext |
| Beschreibung: | XII, 307 S. Ill., graph. Darst. |
| ISBN: | 9780198525011 |
Internformat
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| 245 | 1 | 0 | |a Dislocations, mesoscale simulations and plastic flow |c Ladislas P. Kubin |
| 250 | |a 1. ed. | ||
| 264 | 1 | |a Oxford |b Oxford Univ. Press |c 2013 | |
| 300 | |a XII, 307 S. |b Ill., graph. Darst. | ||
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Datensatz im Suchindex
| _version_ | 1804150548231880705 |
|---|---|
| adam_text | CONTENTS
Figure
Permissions
xi
1
Background and Definitions
1
1.1
Introduction
1
1.2
Dislocation core properties
3
1.2.1
Core energy and structure
3
1.2.2
Cross-slip and the lattice resistance
5
1.3
Elastic properties of dislocations
8
1.3.1
Strain energy of a straight dislocation
8
1.3.2
Force on a dislocation
10
1.3.3
Line tension
12
1.3.4
Line tension strengthening
15
1.4
Dislocation velocity
16
1.4.1
Effective stress
16
1.4.2
Governing mechanisms
17
1.4.3
Orowan s law
19
1.5
Multiscale modelling
21
1.6
Introduction to
3D
DD simulations
23
1.6.1
Brief historical sketch
23
1.6.2
Further implementation
25
2
Obstacle-controlled Plastic Flow
27
2.1
Outline
27
2.2
Free-flight velocity
28
2.2.1
The Peierls stress in fee metals
28
2.2.2
Phonondrag
29
2.3
Dislocation-dislocation interactions
34
2.3.1
Short-range interactions in fee crystals
35
2.3.2
Junction formation and destruction
38
2.3.3
Jogs
41
2.4
Cross-slip in fee crystals
42
2.4.1
Models for compact cross-slip
42
2.4.2
The Friedel-Escaig mechanism
43
2.4.3
The activation energy for cross-slip
44
viii CONTENTS
2.4.4
Escaig s
effect and Escaig s barrier
47
2.4.5
Experimental checks
49
2.4.6
Stress-free constriction energies
50
2.4.7
Atomistic studies of cross-slip
51
2.4.8
The multiple roles of cross-slip
55
2.5
Flow stress and dislocation densities
56
2.5.1
Dislocation strengthening
57
2.5.2
Forest strengthening
58
2.5.3
Jog strengthening
61
2.5.4
Generalized dislocation strengthening
63
2.6
Mechanical response and microstructures
65
2.6.1
Resolved stress-strain curves
65
2.6.2
Stage I 67
2.6.3
Stagen 68
2.6.4
Stage
Ш
69
2.6.5
Stage TV 70
2.6.6
Similitude and self-similarity
73
2.6.7
The storage-recovery model
77
2.7
Collective dislocation behaviour
81
2.7.1
The modelling of dislocation patterns
81
2.7.2
Dislocation avalanches
83
3
Lattice-controlled Plastic Flow
90
3.1
Outline 9Q
3.2
The lattice resistance in bcc metals
91
3.2.1
Deformation properties of bcc metals
91
3.2.2
Core structure of screw dislocations
96
3.2.3
Non-Schmid effects and Peierls stresses
100
3.2.4
Kink-pair mechanisms and models
102
3.2.5
Strengthening and softening in bcc metals
113
3.3
Prismatic slip in hep metals
1
1
8
3.3.1
Slip systems and screw dislocation cores
118
3.3.2
The Peierls stress in
Ti
and Zr
121
3.3.3
Locking-unlocking in hep metals
123
3.4
Dislocations in silicon j24
3 4.1
Introduction j24
3.4.2
Dislocations in the diamond cubic lattice
125
3.4.3
Dislocation cores in the glide set
127
3 4.4
Experimental methods
129
3.4.5
The multiplication yield point of silicon
131
3.4.6
Velocities in the kink-diffusion model
133
3.4.7
Dislocation velocities and activation energies
134
CONTENTS ix
3.4.8
The length-independent
regime
137
3.4.9
Dislocations at high stress
139
4
A Guide to
3D
DD Simulations
145
4.1
Introduction
145
4.2
Elastic properties
146
4.2.1
Outline
146
4.2.2
Discretization of dislocation lines
147
4.2.3
Local procedures and optimization
148
4.2.4
Core fields
149
4.2.5
The self-stress
151
4.2.6
From self-stress to effective stress
155
4.2.7
Further optimization
156
4.2.8
Elastic anisotropy
159
4.2.9
Dissociated dislocations
161
4.3
Local rules
162
4.3.1
Outline
162
4.3.2
Dislocation mobility and velocity
162
4.3.3
Dislocation cross-slip
166
4.3.4
Other local rules
170
4.4
Boundary conditions
170
4.4.1
Periodic boundary conditions
171
4.4.2
Finite boundary conditions
175
4.4.3
Other methods for finite sizes
177
4.5
Current
3D
DD simulations
178
5
Applications of DD Simulations
181
5.1
Outline
181
5.2
Dislocation intersections
181
5.2.1
Intersections and reactions
182
5.2.2
The interaction coefficients
187
5.3
Atomic-scale defects, precipitation strengthening
193
5.3.1
Dislocations and solute atoms
193
5.3.2
Dislocations and irradiation defects
194
5.3.3
Dislocation climb
196
5.3.4
Precipitation strengthening
197
5.4
Collective dislocation processes
199
5.4.1
Intermittency and avalanches
199
5.4.2
From intermittent to continuous flow
202
5.4.3
Dislocation patterns
205
5.4.4
Patterning in cyclic deformation
207
5.4.5
Shock loading, high strain rates
208
5.5
Size effects in plasticity
5.5.1
Introduction
5.5.2
A few examples
5.5.3
The silicon world
5.5.4
Thin metallic films
5.5.5
Small-scale pillars
5.6
Concluding remarks
Appendices
CONTENTS
211
211
211
213
217
219
232
A Thermal Activation of Dislocation Motion
233
A.
1
Mesoscale framework
233
A.2 Orders of magnitude
236
В
Selection of Materials Constants
238
B.I Stacking fault energies, dissociation widths
239
B.2 Elastic constants, shear moduli
240
С
Slip in Single Crystals
242
C.I The Peach-Koehlerforce
242
C.2 Schmid s law, lattice rotation
244
C.3 Active slip systems in fee crystals
247
D
From
γ
-surface to Peierls Stress
252
E Kink-pair
Models
257
E.
1
Dislocations and Peierls potentials
257
E.2 High-stress solutions
258
E.3 Kink-pairs at low stresses
260
E.4 The kink-diffusion model
261
Bibliography
266
Index
301
dislocation-
n
the past twenty years new experimental approaches, improved models and progress
uiriht new insights into long-standing issues concerning
rystailine materials. During this period, three-dimensional
dislocation dynamics simulations have appeared and reached maturity. Their objectives
are to
un
ravel the relation between individual and collective dislocation processes at the
i-scate studies of dislocation core properties
and to bridge, in combination with modelling, the gap between defect properties and
phenomenological continuum models for plastic flow.
Dislocation dynamics simulations are becoming accessible to a wide range of users. This
book presents to students and researchers in materials science and mechanical engineering
a comprehensive coverage of the physical body of knowledge on which they are based. It
includes classical studies, which are too often ignored, recent experimental and theoretical
advances, as well as a discussion of selected applications on various topics.
Ladislas Kubin is Director of Res
This book is a masterful introduction to the physics of plasticity at the mesoscale by one
of the pioneers of the dynamics of disiocations in three dimensions. The text is enriched
enormously by Kubin s personal familiarity with the phenomenology of dislocations and
plasticity in crystals.
Adrian P. Sutton, Imperial College London
IN THE-: SAME
SERI:
Strengthening Mechanisms in Crystal Plasticity
AU S.
Argon
Computer Simulations of Dislocations
asilv V. Bulatov and Wei
Cai
Interatomic Forces in Condensed Matter
Mike Finnis
Microstructure
oí martensite:
Why it forms and how it gives rise to the shape-memory effect
Kaushik Bhattachar a
Disi
segments. The
initiât
white and light blue lines are partly annihilated and form composite segments
that bow out under stress (Fig-
5.2o.
Adapted with permission from an original figure bv B. Devincre.
|
| any_adam_object | 1 |
| author | Kubin, Ladislas |
| author_GND | (DE-588)1048733319 |
| author_facet | Kubin, Ladislas |
| author_role | aut |
| author_sort | Kubin, Ladislas |
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| dewey-full | 548.8420113 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 548 - Crystallography |
| dewey-raw | 548.8420113 |
| dewey-search | 548.8420113 |
| dewey-sort | 3548.8420113 |
| dewey-tens | 540 - Chemistry and allied sciences |
| discipline | Chemie / Pharmazie Physik |
| edition | 1. ed. |
| format | Book |
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| id | DE-604.BV041147398 |
| illustrated | Illustrated |
| indexdate | 2024-07-10T00:40:40Z |
| institution | BVB |
| isbn | 9780198525011 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-026122921 |
| oclc_num | 846530866 |
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| owner_facet | DE-11 DE-703 DE-29T |
| physical | XII, 307 S. Ill., graph. Darst. |
| publishDate | 2013 |
| publishDateSearch | 2013 |
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| publisher | Oxford Univ. Press |
| record_format | marc |
| series | Oxford Series on Materials Modelling |
| series2 | Oxford Series on Materials Modelling |
| spelling | Kubin, Ladislas Verfasser (DE-588)1048733319 aut Dislocations, mesoscale simulations and plastic flow Ladislas P. Kubin 1. ed. Oxford Oxford Univ. Press 2013 XII, 307 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Oxford Series on Materials Modelling 5 Versetzung Kristallographie (DE-588)4187993-4 gnd rswk-swf Plastische Deformation (DE-588)4115572-5 gnd rswk-swf Plastische Deformation (DE-588)4115572-5 s Versetzung Kristallographie (DE-588)4187993-4 s 1\p DE-604 Oxford Series on Materials Modelling 5 (DE-604)BV019397343 5 Digitalisierung UB Bayreuth - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026122921&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis Digitalisierung UB Bayreuth - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026122921&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA Klappentext 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
| spellingShingle | Kubin, Ladislas Dislocations, mesoscale simulations and plastic flow Oxford Series on Materials Modelling Versetzung Kristallographie (DE-588)4187993-4 gnd Plastische Deformation (DE-588)4115572-5 gnd |
| subject_GND | (DE-588)4187993-4 (DE-588)4115572-5 |
| title | Dislocations, mesoscale simulations and plastic flow |
| title_auth | Dislocations, mesoscale simulations and plastic flow |
| title_exact_search | Dislocations, mesoscale simulations and plastic flow |
| title_full | Dislocations, mesoscale simulations and plastic flow Ladislas P. Kubin |
| title_fullStr | Dislocations, mesoscale simulations and plastic flow Ladislas P. Kubin |
| title_full_unstemmed | Dislocations, mesoscale simulations and plastic flow Ladislas P. Kubin |
| title_short | Dislocations, mesoscale simulations and plastic flow |
| title_sort | dislocations mesoscale simulations and plastic flow |
| topic | Versetzung Kristallographie (DE-588)4187993-4 gnd Plastische Deformation (DE-588)4115572-5 gnd |
| topic_facet | Versetzung Kristallographie Plastische Deformation |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026122921&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026122921&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV019397343 |
| work_keys_str_mv | AT kubinladislas dislocationsmesoscalesimulationsandplasticflow |