Fracture Strength of CuCrZr in High Temperature Environment

Journal Article · Tue Jul 15 00:00:00 EDT 2003 · Fusion Science and Technology

OSTI ID:20849520

Suzuki, Ryo ^[1]; Saito, Masakatsu ^[1]; Hatano, Toshihisa ^[2]

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1. Univ. of Tsukuba (Japan)
2. Japan Atomic Energy Research Institute (Japan)

The fracture strength was estimated for copper-alloy CuCrZr, and their HIPed joints with SS316L and CuCrZr, which were the candidate materials consisting of the First Wall of ITER. Fracture toughness and fatigue crack propagation ratio of those materials were superior to those of copper-alloy DS-Cu and its HIPed joint with SS316. It was confirmed that the cracks near the CuCrZr/SS316L HIPed boundary was propagated in copper-alloy along the interface at a distance of about 10{mu}m from the interface. The lost of ductility of all materials caused the decrement of fracture toughness and increment of crack propagation ratio in high temperature (573K)

• OSTI ID: 20849520
• Journal Information: Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 1 Vol. 44; ISSN 1536-1055
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COPPER ALLOYS
CRACK PROPAGATION
CRACKS
DISTANCE
DUCTILITY
FATIGUE
FIRST WALL
FRACTURE PROPERTIES
INTERFACES
ITER TOKAMAK
THERMONUCLEAR REACTOR MATERIALS