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

页码：140 / 145

页数：6

共 11 条

[1]

Kenik E.A., 2001, Microsc. Microanal., V7, P550, DOI [10.1017/S1431927600028828, DOI 10.1017/S1431927600028828]

[2] Defect and void evolution in oxide dispersion strengthened ferritic steels under 3.2 MeV Fe+ ion irradiation with simultaneous helium injection [J].