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Partially pinned tilt boundaries

Vreeland, T., Jr. (1959) Partially pinned tilt boundaries. Acta Metallurgica, 7 (4). pp. 240-245. ISSN 0001-6160.

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This paper presents the results of a theoretical study of the conditions under which small angle tilt boundaries in a crystal can be moved when subjected to a stress which does not produce general slip. The dislocations in the boundary are assumed to be partially pinned by Cottrell atmospheres, intersecting substructure, or precipitates along the dislocation lines. The results show that partially pinned dislocation boundaries may move at lower stresses than similarly pinned isolated dislocations if the density of pinned segments is sufficiently low. Stress concentrations at pinned segments on a small angle boundary are discussed. A “yield condition” for motion of certain partially pinned boundaries is described in which pinned dislocations are left behind when the boundary is moved.

Item Type:Article
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URLURL TypeDescription DOIArticle
Alternate Title:Joints de flexion partiellement ancres, Teilweise festgehaltene neigungskorngrenzen
Additional Information:© Pergamon Press Inc. Received May 5, 1958; revised version July 21, 1958. This research was supported by the Solid State Sciences Division, Air Force Office of Scientific Research, ARDC, Washington 25, D.C. under Contract No. AF18(600)-490 Project Designation R-335-10-6.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)AF18(600)-490
Issue or Number:4
Record Number:CaltechAUTHORS:20150123-132155385
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Official Citation:T Vreeland Jr., Partially pinned tilt boundaries, Acta Metallurgica, Volume 7, Issue 4, April 1959, Pages 240-245, ISSN 0001-6160, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54026
Deposited By: Tony Diaz
Deposited On:23 Jan 2015 22:30
Last Modified:03 Oct 2019 07:54

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