scholarly journals Electron microscopy and atom probe tomography of nanoindentation deformation in oxide dispersion strengthened steels

2020 ◽  
Vol 167 ◽  
pp. 110477
Author(s):  
Thomas P. Davis ◽  
Jack C. Haley ◽  
Sarah Connolly ◽  
Maria A. Auger ◽  
Michael J. Gorley ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Atom Probe Tomography ◽  
Oxide Dispersion Strengthened ◽  
Atom Probe ◽  
Oxide Dispersion

Study of Nano-cluster Formation in Fe-18Cr ODS Ferritic Steel by Atom Probe Tomography

2010 ◽  
Vol 1264 ◽  
Author(s):  
Olena Kalokhtina ◽  
Bertrand Radiguet ◽  
Yann de Carlan ◽  
Philippe Pareige
Keyword(s):  
Mechanical Alloying ◽  
Atom Probe Tomography ◽  
Cluster Formation ◽  
Milled Powder ◽  
Hot Extrusion ◽  
Oxide Dispersion Strengthened ◽  
Atom Probe ◽  
Subsequent Annealing ◽  
Oxide Dispersion ◽  
Oxide Dispersion Strengthened Steel

AbstractA high chromium ferritic Oxide Dispersion Strengthened steel was produced by mechanical alloying of Fe-18Cr-1W-0.3Ti-0.3Ni-0.15Si and 0.5% Y2O3 (wt.%) powders in industrial attritor, followed by hot extrusion at 1100°C. The material was characterized by Atom Probe Tomography on each step of manufacturing process: as-milled powder and in final hot extruded state. In addition, to get information on clustering kinetics the powder was also characterized after annealing at 850°C during 1 hour. Atom Probe Tomography revealed that the oxide dispersion strengthened steel Fe-18Cr contains nanometer scale yttrium- and oxygen-enriched nanoclusters in as-milled state. Their evolution is shown after subsequent annealing and hot extrusion. More well defined nanophases also enriched in Ti are observed. A mechanism of their formation is proposed. Mechanical alloying results in supersaturated solid solution with presence of small Y- and O-enriched clusters. Subsequent annealing stimulates incorporation of Ti to the nucleii that were previously formed during mechanical alloying.

Atom Probe Tomography: A Technique for Nanoscale Characterization

2004 ◽  
Vol 10 (3) ◽  
pp. 336-341 ◽  
Author(s):  
M.K. Miller ◽  
E.A. Kenik
Keyword(s):  
Atom Probe Tomography ◽  
Analytical Techniques ◽  
Size Composition ◽  
Oxide Dispersion Strengthened ◽  
Atom Probe ◽  
Oxide Dispersion ◽  
Mechanically Alloyed ◽  
Nanoscale Characterization ◽  
Tomography Data

Atom probe tomography is a technique for the nanoscale characterization of microstructural features. Analytical techniques have been developed to estimate the size, composition, and other parameters of features as small as 1 nm from the atom probe tomography data. These methods are outlined and illustrated with examples of yttrium-, titanium-, and oxygen-enriched particles in a mechanically alloyed, oxide-dispersion-strengthened steel.

Atom probe tomography of the evolution of the nanostructure of oxide dispersion strengthened steels under ion irradiation

2017 ◽  
Vol 2017 (9) ◽  
pp. 741-747 ◽  
Author(s):  
N. N. Orlov ◽  
S. V. Rogozhkin ◽  
A. A. Bogachev ◽  
O. A. Korchuganova ◽  
A. A. Nikitin ◽  
...  
Keyword(s):  
Atom Probe Tomography ◽  
Ion Irradiation ◽  
Oxide Dispersion Strengthened ◽  
Atom Probe ◽  
Oxide Dispersion

Origins of meteoritic nanodiamonds investigated by coordinated atom‐probe tomography and transmission electron microscopy studies

2019 ◽  
Vol 55 (6) ◽  
pp. 1382-1403 ◽  
Author(s):  
Josiah B. Lewis ◽  
Christine Floss ◽  
Dieter Isheim ◽  
Tyrone L. Daulton ◽  
David N. Seidman ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Transmission Electron
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