Published March 2011 | Version v1
Journal article Metadata-only

Improvement of stress corrosion cracking resistance in austenitic stainless steel by grain boundary character distribution control

Creators

  • 1. Hitachi, Ltd., Hitachi, Ibaraki (Japan)
  • 2. Hitachi-GE Nuclear Energy, Ltd., Hitachi, Ibaraki (Japan)

Description

Creviced bent beam test is conducted on grain boundary character distribution (GBCD) controlled austenitic stainless steel. Average length and grain quantity of stress corrosion cracking (SCC) decrease after raising low Σ coincidence site lattice (CSL) grain boundary (GB) frequency by post-cold-work heat treatment process. GBCD analysis on SCC path shows that low Σ CSL GB possesses better SCC resistance than random GB. Triple junction distribution (TJD) analysis shows that with raising low Σ CSL GB frequency, continuity of random GB network can be efficiently broken, which leads to a good improvement of SCC resistance in the material. (author)

Additional details

Publishing Information

Journal Title
Zairyo To Kankyo
Journal Volume
60
Journal Issue
3
Journal Page Range
p. 141-146
ISSN
0917-0480

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
43013536
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AUSTENITIC STEELS; BACKSCATTERING; CHEMICAL PLANTS; CONTROL; CRACKING; DISTRIBUTION; ELECTRON DIFFRACTION; GRAIN BOUNDARIES; INTERGRANULAR CORROSION; NUCLEAR POWER PLANTS; STRESS CORROSION
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; COHERENT SCATTERING; CORROSION; DECOMPOSITION; DIFFRACTION; INDUSTRIAL PLANTS; IRON ALLOYS; IRON BASE ALLOYS; MICROSTRUCTURE; NUCLEAR FACILITIES; POWER PLANTS; PYROLYSIS; SCATTERING; STEELS; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
12 refs., 13 figs., 3 tabs.