Characterization of precipitates in MA/ODS ferritic alloys

被引：243
作者：
Miller, M. K. [1 ]
Russell, K. F. [1 ]
Hoelzer, D. T. [1 ]
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
来源：
JOURNAL OF NUCLEAR MATERIALS | 2006年 / 351卷 / 1-3期
关键词：
D O I：
10.1016/j.jnucmat.2006.02.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mechanically alloyed, oxide dispersion strengthened (MA/ODS) ferritic alloys are attractive for fusion reactor applications because of their potential for operation at high temperatures and also because the dispersed oxide particles may provide a trap for transmutant helium. The microstructural stability of MA/ODS Fe-14 wt% Cr-3% W-0.4% Ti-0.3% Y2O3 ferritic alloys was investigated by atom probe tomography. Atom probe tomography revealed that these MA/ODS 14YWT ferritic alloys contain a high number density of nanometer scale titanium-, yttrium- and oxygen-enriched nanoclusters in the as-extruded condition. These nanoclusters were found to be extremely resistant to coarsening at temperatures of at least 1000 degrees C. Published by Elsevier B.V.
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收藏
页码：261 / 268
页数：8
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