Published 2010 | Version v1
Miscellaneous Metadata-only

Characteristics of microstructure and SCC behavior near the fusion boundary of Ni-base weld metal and low alloy steel

Creators

  • 1. Tohoku Univ., Graduate School of Engineering, Sendai, Miyagi (Japan)

Description

SCC behavior near the fusion boundary of dissimilar weld joint with Ni-based weld metal and low alloy steel in high temperature water has been investigated with special attention on relation to the characteristics of microstructure. From the results of CBB test (1.0 ppm-Na2SO4 and 8 ppm dissolved oxygen), it has been obvious that the LAS has no SCC susceptibility. On the other hand, Alloy 182 in the weld samples have SCC susceptibility. Most of crack tips have located at the fusion boundary, and the penetration of oxide into LAS has been observed. It has been thought that crack become obtuse when crack reach at fusion boundary. It has been suggested that the dominant factor of crack retardation or arrest is low SCC susceptibility of LAS in high temperature water. (author)

Part of:
Proceedings of the 7th annual meeting of Japan Society of Maintenology

Additional details

Additional titles

Original title (Japanese)
Nippon hozen gakkai dai-7-kai gakujutsu koenkai yoshishu

Publishing Information

Imprint Title
Proceedings of the 7th annual meeting of Japan Society of Maintenology
Imprint Pagination
623 p.
Journal Page Range
p. 558-561

Conference

Title
7. annual meeting of Japan Society of Maintenology
Dates
13-15 Jul 2010
Place
Omaezaki, Shizuoka (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
44096113
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
BWR TYPE REACTORS; CRACK PROPAGATION; CRACKING; LOW ALLOY STEELS; MICROSTRUCTURE; NICKEL BASE ALLOYS; PRESSURE VESSELS; STRESS CORROSION; SULFUR; WELDED JOINTS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; CONTAINERS; CORROSION; DECOMPOSITION; ELEMENTS; ENRICHED URANIUM REACTORS; IRON ALLOYS; IRON BASE ALLOYS; JOINTS; NICKEL ALLOYS; NONMETALS; POWER REACTORS; PYROLYSIS; REACTORS; STEELS; THERMAL REACTORS; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT ALLOYS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
3 refs., 6 figs., 2 tabs. Imprint:Nippon hozen gakkai dai-7-kai gakujutsu koenkai yoshishu