Published October 1988 | Version v1
Report Restricted

Fatigue crack growth of part-through cracks in pressure vessel and piping steels: Air environment results

Creators

Description

This report describes the first phase of a program to evaluate the effect of PWR water environment on the fatigue crack growth in part-through surface-crack specimens in pressure vessel and piping steels, unclad and clad. The objective of the program is to compare the crack growth rate data from a two-dimensional crack with that generated from the more popular compact specimens. The results of room air environment tests, at ambient temperature and 288/degree/C are presented. The materials used, the description of the cladding process, the test specimen preparation for the direct current potential drop (DCPD) technique, and the computerized data acquisition systems are described. The computational techniques for the processing of the DCPD data are detailed, and the crack extension plots are presented. The crack growth rate data from these air environment tests are compared with data sets from tests of compact tension specimens in the same orientations as the major and minor axes of the semielliptical part-through crack. 14 refs., 30 figs., 1 tab

Availability note (English)

MF available from INIS under the Report Number; NTIS, PC A04 - US Govt. Printing Office. as TI89003460.

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Additional details

Publishing Information

Imprint Pagination
42 p.
Report number
NUREG/CR--4828

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20030288
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
CARBON STEELS; CRACK PROPAGATION; CRACKS; DATA ACQUISITION SYSTEMS; DATA PROCESSING; EXPERIMENTAL DATA; FATIGUE; MATHEMATICAL MODELS; MECHANICAL PROPERTIES; PIPES; PRESSURE VESSELS; PWR TYPE REACTORS; SAMPLE PREPARATION; STEEL-MNNIMO
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CONTAINERS; DATA; ENRICHED URANIUM REACTORS; INFORMATION; IRON ALLOYS; IRON BASE ALLOYS; LOW ALLOY STEELS; MANGANESE ALLOYS; MOLYBDENUM ADDITIONS; NICKEL ADDITIONS; NUMERICAL DATA; POWER REACTORS; REACTORS; STEELS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Secondary number(s)
MEA--2198.