journal article·2015-04

Effect of alloyed Ti on the microstructure and corrosion characteristics of a U–Ti alloy in a hydrogen environment

Peng Shi, Fangfang Li, Yanping Wu, Hefei Ji, Ruiwen Li, Xiaolin Wang

Corrosion Science· Volume 93
Publisher page

Abstract

Abstract The influence of alloyed titanium element on the microstructure and the hydrogen corrosion properties of 500 °C/2 h aged U–0.79 wt.% Ti alloys was investigated. The results demonstrated that 500 °C/2 h aging treatment markedly decreased the hydriding corrosion resistance of U–Ti alloys. The microstructure and chemical compositions of U–0.79Ti alloys exerted a significant influence on the initial hydride nucleation sites and pitting corrosion behavior. A model was proposed to elucidate the formation mechanism of the preferential hydriding on the so-called “α+U 2 Ti” mixed phase area.
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Research context

OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · Nuclear reactor physics and engineering

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