Effect of deuterium content on fracture toughness of Zr-2.5Nb pressure tube material in the temperature range of ambient to 300 °C
Source abstract
Abstract
Abstract Axial fracture toughness of cold worked and stress relieved Zr-2.5Nb pressure tube material containing deuterium between 5 and 200wppm was determined as per ASTM E−1820-15 between 25 and 300 °C using 17 mm wide Curved Compact Tension samples. For deuterium charged materials, the variation of the fracture toughness with test temperature showed typical S curve behavior. At 25 °C, the fracture toughness dropped drastically between 5 and 30wppm of deuterium concentration and afterwards it was constant between 30 and 200wppm. Samples having similar axial split density had similar fracture toughness. The lower-shelf and upper-shelf temperature was attributed to a critical axial split density and disappearance of axial split on fracture surface, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · Nuclear reactor physics and engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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