Atom probe tomography of nanoscale particles in ODS ferritic alloys

被引：211
|
作者：
Miller, MK [1 ]
Kenik, EA [1 ]
Russell, KF [1 ]
Heatherly, L [1 ]
Hoelzer, DT [1 ]
Maziasz, PJ [1 ]
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Microscopy Microanal & Microstruct Grp, Oak Ridge, TN 37831 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 353卷 / 1-2期
关键词：
atom probe; mechanical alloying; microstructural characterization; precipitation; segregation; dislocations;
D O I：
10.1016/S0921-5093(02)00680-9
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An atom probe tomography characterization of the microstructure of as-processed and crept mechanically-alloyed, oxide-dispersion-strengthened (MA/ODS) ferritic alloys has been performed. The significant enrichments of Cr, W, Ti, Y, 0, C and B in the vicinity of dislocations and the presence of ultrastable 4-nm-diameter Ti-, Y- and O-enriched particles appears to be responsible for their improved high temperature mechanical properties. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：140 / 145
页数：6
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