For the latest COVID-19 news and information, visit Penn State's Coronavirus Information website.

Export to Refworks Export to EndNote Email
Report an Issue

Development of an Oxygen Embrittlement Criterion for Zircaloy Cladding Applicable to Loss-of-Coolant Accident Conditions in Light-Water Reactors / HM. Chung, AM. Garde, TF. Kassner

Conference Author:
Zirconium in the Nuclear Industry (1978 : Stratford-upon-Avon, England)
Physical Description:
1 online resource (28 pages) : illustrations, figures, tables
Additional Creators:
Chung, HM., Garde, AM., Kassner, TF., American Society for Testing and Materials, and ASTM International
Access Online

Availability

I Want It

Finding items...

Restrictions on Access:
Subscription required for access to full text.
License restrictions may limit access.
Summary:
To establish the mechanical response of Zircaloy cladding under thermal shock conditions typical of hypothetical loss-of-coolant accident (LOCA) situations in light-water reactors (LWRs), cladding specimens were ruptured in steam during transient heating (10 K/s), oxidized at maximum temperatures between 1140 and 1770 K for various times, and cooled from the isothermal oxidation temperature to ~1100 K at a rate of 5 K/s, and rapidly quenched by bottom flooding with water at a rate of ~0.05 m/s. Failure ¿̐ưmaps¿̐ư for fracture of the cladding by thermal shock were developed relative to the maximum oxidation temperature and various time-dependent oxidation parameters. In situ pendulum-load impact tests were conducted at room temperature on tubes that survived the thermal quench. Information on the total absorbed energy from these tests was correlated with more extensive results from instrumented drop-weight impact tests. The thermal shock results indicate that the present Zircaloy embrittlement criterion (that is, a total oxidation limit of 17 percent of the wall thickness and a maximum cladding temperature of 1477 K) is conservative and that a more quantitative criterion, based upon the mechanical behavior of the oxidized material, can be formulated with a specified degree of conservatism consistent with the mechanical loads imposed on the cladding during reflood and the maximum amount of oxidation set by the margin of performance of emergency core-cooling systems in LWRs.
Dates of Publication and/or Sequential Designation:
Volume 1979, Issue 681 (January 1979)
Subject(s):
Other Subject(s):
ISBN:
9780803147492 (e-ISBN)
9780803106017
0803106017
Digital File Characteristics:
text file PDF
Bibliography Note:
Includes bibliographical references 23.
Other Forms:
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note:
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1979. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details:
Mode of access: World Wide Web.
Source of Acquisition:
ASTM International PDF Purchase price USD25.
View MARC record | catkey: 27988177