Published July 2003 | Version v1
Journal article Metadata-only

Microstructure and Hardness Variation in a TIG Weldment of Irradiated F82H

Creators

  • 1. Japan Atomic Energy Research Institute (Japan)
  • 2. Oak Ridge National Laboratory (United States)

Description

Previous work reported that a TIG weld joint of F82H exhibited low irradiation hardening in a tensile test, compared to the base metal. Microhardness tests and microstructure observation on the neutron-irradiated TIG weld joint of F82H revealed that the over-tempered zone in the heat-affected zone (HAZ) exhibited this good performance. The region in the HAZ where the prior austenite grain size became very fine during welding also exhibited lower irradiation hardening. Hypotheses for these low-hardening mechanisms were proposed based on the phase diagram and grain size

Additional details

Identifiers

URL
http://epubs.ans.org/;

Publishing Information

Journal Title
Fusion Science and Technology
Journal Volume
44
Journal Issue
1
Journal Page Range
p. 219-223
ISSN
1536-1055

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38019978
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
AUSTENITE; GRAIN SIZE; HEAT AFFECTED ZONE; IRRADIATION; MICROHARDNESS; NEUTRONS; NICKEL ALLOYS; PERFORMANCE; PHASE DIAGRAMS; RADIATION HARDENING; THERMONUCLEAR REACTOR MATERIALS; VARIATIONS; WELDED JOINTS; WELDING
Descriptors DEC
ALLOYS; BARYONS; CARBON ADDITIONS; DIAGRAMS; ELEMENTARY PARTICLES; FABRICATION; FERMIONS; HADRONS; HARDENING; HARDNESS; INFORMATION; IRON ALLOYS; JOINING; JOINTS; MATERIALS; MECHANICAL PROPERTIES; MICROSTRUCTURE; NUCLEONS; PHYSICAL RADIATION EFFECTS; RADIATION EFFECTS; SIZE; TRANSITION ELEMENT ALLOYS; ZONES

Optional Information

Copyright
Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/