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13 - Electrical and Electronic Engineering, Metallurgy and Materials

Imperial College London : B - Metallurgy and Materials

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Article title

Stress fields and geometrically necessary dislocation density distributions near the head of a blocked slip band

Type

D - Journal article

DOI

10.1016/j.actamat.2012.07.004

Title of journal

Acta Materialia

Article number

Volume number

Issue number

First page of article

5773

ISSN of journal

1359-6454

Year of publication

2012

URL

Number of additional authors

Additional information

This work presents the first validation of a theoretical result of Eshelby,Frank and Nabarro(1951) in Philosophical Magazine for the form of a stress field ahead of a dislocation pile-up (e.g. describes mechanisms behind cracking, strengthening). Stress variation has been used to measure the strength of an individual grain boundary, which opens up a new field of strength based grain boundary engineering. This work won 1st prize poster presentation the UK EBSD conference, has been presented at invited seminar talks at Norwegian University of Science&Technology and Katholieke Universiteit Leuven, as well as opening a conference session at MS&T 2011.

Interdisciplinary

Cross-referral requested

Research group

None

Proposed double-weighted

Double-weighted statement

Reserve for a double-weighted output

Non-English

English abstract