Effects of Mo addition on precipitation in Zr–1.2Nb alloys
Materials Letters(2015)
摘要
Mo-modified Zr–1.2Nb alloys were prepared and the effects of Mo addition on precipitation in Zr–Nb alloys were elucidated. It was found that an increase of Mo content decreased α→(α+β) phase transformation temperature in Zr–Nb alloys. A new kind of precipitate, β-(Nb, Mo, Zr), was identified in the Mo-containing alloys. These particles are formed because Mo atoms replace Nb atoms in the β-(Nb, Zr) phase. Further, it was found that Mo retarded the growth of the precipitates but increased their number density.
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关键词
Zr–Nb alloy,Mo addition,Precipitation,Scanning transmission electron microscopy
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