Insight into the mechanism of abnormal degradation of duplex U-Nb alloy
Source abstract
Abstract
Niobium is introduced to uranium to enhance the corrosion resistance of metallic uranium, while duplex U-Nb alloy exhibits anomalous degradation to hydrogen corrosion. To understand the underlying mechanism, we employed high-resolution transmission electron microscopy (HRTEM) and density functional theory (DFT) calculations to characterize the structure of the phase interface in duplex U-Nb alloy and its interaction with hydrogen and vacancy. Combined with the different behaviors of hydrogen in the two phases of the duplex U-Nb alloy, a mechanism contributing to the observed abnormal degradation is proposed, corroborated by the special distribution of hydride within the duplex U-Nb alloy.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · High Temperature Alloys and Creep
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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