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Ductile fracture by vacancy condensation in f.c.c. single crystals

Cuitiño, A. M. and Ortiz, M. (1996) Ductile fracture by vacancy condensation in f.c.c. single crystals. Acta Materialia, 44 (2). pp. 427-436. ISSN 1359-6454. doi:10.1016/1359-6454(95)00220-0.

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We explore the feasibility of vacancy condensation as the void-nucleating mechanism underlying ductile fracture by void growth and coalescence in single crystals at room temperature. Vacancies are presumed to be primarily generated by the dragging of intersection jogs. The equations governing the rate of growth of voids by vacancy condensation are derived. These equations are used to follow the evolution of vacancy concentrations and void sizes in the Wang and Anderson [Acta metall. 39, 779 (1991)] [1] Σ9 test. We find that, when pipe diffusions are taken into account, the time required for the nucleation of a macroscopic void in the near-tip region is of the order of one minute, which is well within the time-scale of quasistatic fracture tests.

Item Type:Article
Related URLs:
URLURL TypeDescription
Cuitiño, A. M.0000-0002-5180-9147
Ortiz, M.0000-0001-5877-4824
Additional Information:© 1996 Elsevier. (Received 30 November 1994; in revised form 1 May 1995) The support of the Office of Naval Research under contract N00014-90-J-1758 is gratefully acknowledged.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-90-J-1758
Issue or Number:2
Record Number:CaltechAUTHORS:20171213-152606701
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Official Citation:A.M. Cuitiño, M. Ortiz, Ductile fracture by vacancy condensation in f.c.c. single crystals, In Acta Materialia, Volume 44, Issue 2, 1996, Pages 427-436, ISSN 1359-6454, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83896
Deposited By: Lydia Suarez
Deposited On:15 Dec 2017 19:33
Last Modified:15 Nov 2021 20:15

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