Irradiation creep associated with dislocation climb
作者:
C.C. Dollins,
期刊:
Radiation Effects
(Taylor Available online 1971)
卷期:
Volume 11,
issue 3-4
页码: 123-131
ISSN:0033-7579
年代: 1971
DOI:10.1080/00337577108231097
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
It is believed that creep in materials containing a dispersed second phase may be controlled by the climb of edge dislocations around the second phase. The above model is proposed to be applicable to neutron irradiated materials containing Seeger zones. It is assumed that edge dislocations are pinned by the zones and can escape by (1) climbing out of the zones by absorption of neutron produced point defects, (2) the dissolution of the zones by absorption of neutron produced interstitials, (3) the dissolution of the zones by vacancy emission from the zones and (4) thermally activated cutting of the zones by the dislocations. The above four mechanisms are incorporated into a set of equations similar to those originally proposed by Seeger for hardening in neutron irradiated copper. The effects of temperature, neutron flux, fluence, and applied stress are considered.
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