Main results of the PISC III capability studies on cast-to-cast austenitic steel welds

Book · Fri Dec 01 04:00:00 EST 1995

OSTI ID:129203

Lemaitre, P; Koble, T D ^[1]; Doctor, S R ^[2]

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1. European Commission, Petten (Netherlands). Joint Research Centre
2. Pacific Northwest Lab., Richland, WA (United States)

In 1986 the Committee for the Safety of Nuclear Installations (CSNI) discussed the list of actions of the third phase of the Programme for the Inspection of Steel Components (PISC III). Within the framework of Action 4 of the PISC III a capability study on cast-to-cast stainless steel welds has been conducted. This study used 3 cast-to-cast stainless steel assemblies that contained a number of flaws such as mechanical fatigue cracks, lack of fusion flaws and notches of the PISC type A. Also a number of unintended flaws were present. The diameter of these assemblies varied between 838 mm and 937 mm and the wall thickness was about 68 mm. Besides a statically cast stainless steel with a rather small grain size two different types of centrifugally cast stainless steel were considered. Eleven teams from 7 different countries participated in the round robin test. A lot of information was obtained on the performance of the teams with respect to detection, false calls, depth and length sizing. Different flaw categories were considered to identify those difficult to detect. In this paper the main conclusions from the capability study on cast-to-cast austenitic steel welds will be discussed.

• DOE Contract Number: AC06-76RL01830
• OSTI ID: 129203
• Report Number(s): CONF-950740--; ISBN 0-7918-1348-7
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
36 MATERIALS SCIENCE
AUSTENITIC STEELS
BWR TYPE REACTORS
CRACKS
DATA ANALYSIS
EXPERIMENTAL DATA
MICROSTRUCTURE
NONDESTRUCTIVE TESTING
PERFORMANCE
PIPES
PWR TYPE REACTORS
WELDED JOINTS