Point defect behaviour in irradiated materials

Journal Article · Wed Jan 01 04:00:00 EST 1975 · Acta Metall., v. 23, no. 11, pp. 1389-1399

DOI:https://doi.org/10.1016/0001-6160(75)90148-0· OSTI ID:4058842

Heald, P T; Speight, M V

When nonfissile materials are bombarded with energetic particles, large numbers of vacancies and interstitials are produced. The subsequent behavior of these point defects is responsible for the observable phenomena of swelling and enhanced creep. A comprehensive theory of the defect interactions and kinetics leading to swelling and creep was developed. Particular attention was given to determining the densities of point defect sinks, both dislocations and voids, and their dependence on the irradiation temperature. The dislocation preference for the capture of interstitials is a strong function of the irradiation temperature and not constant as is frequently assumed. The swelling and creep rates predicted by the theory are shown to be in accord with the experimental results. (auth)

• Research Organization: Berkeley Nuclear Labs., Eng.
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-023815
• OSTI ID: 4058842
• Journal Information: Acta Metall., v. 23, no. 11, pp. 1389-1399, Journal Name: Acta Metall., v. 23, no. 11, pp. 1389-1399; ISSN AMETA
• Country of Publication: United States
• Language: English

Related Subjects

*METALS-- PHYSICAL RADIATION EFFECTS
*POINT DEFECTS-- RADIOINDUCTION
360106* --Materials--Metals & Alloys--Radiation Effects
CREEP
N50240* --Metals
Ceramics
& Other Materials--Metals & Alloys--Radiation Effects
SWELLING