کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1570070 999949 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of alloying modifications on hydrogen uptake of zirconium-alloy welding specimens during corrosion tests
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
The effect of alloying modifications on hydrogen uptake of zirconium-alloy welding specimens during corrosion tests
چکیده انگلیسی

The hydrogen uptake behavior during corrosion tests for electron beam welding specimens made out of Zircaloy-4 and zirconium alloys with different compositions was investigated. Results showed that the hydrogen uptake in the specimens after corrosion tests increased with increasing Cr content in the molten zone. This indicated that Cr element significantly affected the hydrogen uptake behavior. Fe and Cr have a low solubility in α-Zr and exist mainly in the form of Zr(Fe,Cr)2 precipitates, which is extremely reactive with hydrogen in its metallic state. It is concluded that the presence of Zr(Fe,Cr)2 second phase particles (SPPs) is responsible for the increase in the amount of hydrogen uptake in the molten zone of the welding samples after corrosion, as Zr(Fe,Cr)2 SPPs embedded in α-Zr matrix and exposed at the metal/oxide interface could act as a preferred path for hydrogen uptake.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 350, Issue 2, 15 April 2006, Pages 195–201
نویسندگان
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