Weldability and weld performance of a special grade Hastelloy-X modified for high-temperature gas-cooled reactors

Journal Article · Sun Jul 01 04:00:00 EDT 1984 · Nucl. Technol.; (United States)

OSTI ID:6332076

Shimizu, S; Mutoh, Y

The characteristics of weld defects in the electron beam (EB) welding and the tungsten inert gas (TIG) arc welding for Hastelloy-XR, a modified version of Hastelloy-X, are clarified through the bead-on-plate test and the Trans-Varestraint test. Based on the results, weldabilities on EB and TIG weldings for Hastelloy-XR are discussed and found to be almost the same as Hastelloy-X. The creep rupture behaviors of the welded joints are evaluated by employing data on creep properties of the base and the weld metals. According to the evaluation, the creep rupture strength of the EB-welded joint may be superior to that of the TIG-welded joint. The corrosion test in helium containing certain impurities is conducted for the weld metals. There is no significant difference of such corrosion characteristics as weight gain, internal oxidation, depleted zone, and so on between the base and the weld metals. Those are superior to Hastelloy-X.

• Research Organization: Kawasaki Heavy Industries Ltd. 2-32-1 Sakuramoto, Kawasaki-ku, Kawasaki
• OSTI ID: 6332076
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 66:1; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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Nonbreeding
Graphite Moderated
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ARC WELDING
CARBON ADDITIONS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COBALT ALLOYS
COMPARATIVE EVALUATIONS
CORROSION
CREEP
DEFECTS
ELECTRON BEAM WELDING
ELEMENTS
FABRICATION
FAILURES
FLUIDS
GAS COOLED REACTORS
GAS TUNGSTEN-ARC WELDING
GASES
GRAPHITE MODERATED REACTORS
HASTELLOY X
HASTELLOY XR
HASTELLOYS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HELIUM
HTGR TYPE REACTORS
IMPURITIES
IRON ALLOYS
JOINING
JOINTS
MANGANESE ADDITIONS
MANGANESE ALLOYS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NONMETALS
RARE GASES
REACTOR MATERIALS
REACTORS
RUPTURES
SILICON ADDITIONS
SILICON ALLOYS
TESTING
TUNGSTEN ALLOYS
WELDABILITY
WELDED JOINTS
WELDING