A Slow Positron Beam Study of Helium Clustering in Oxide Dispersion Strengthened Steels

2021 ◽  
Author(s):  
Vladimir Krsjak ◽  
Jarmila Degmova ◽  
Petr Hruska ◽  
Stanislav Sojak ◽  
Pavol Noga ◽  
...  
Keyword(s):  
Oxide Dispersion Strengthened ◽  
Positron Beam ◽  
Oxide Dispersion ◽  
Slow Positron

Application of slow positron beam for study of commercial oxide-dispersion-strengthened steels

2014 ◽  
Vol 450 (1-3) ◽  
pp. 99-103 ◽  
Author(s):  
J. Simeg Veternikova ◽  
V. Slugen ◽  
S. Sojak ◽  
M. Skarba ◽  
E. Korhonen ◽  
...  
Keyword(s):  
Oxide Dispersion Strengthened ◽  
Positron Beam ◽  
Oxide Dispersion ◽  
Slow Positron

Fine Microstructure of a Mechanically Alloyed Oxide Dispersion Strengthened Nickel-Base Superalloy

1977 ◽  
Vol 35 ◽  
pp. 298-299
Author(s):  
Jordi Marti ◽  
Timothy E. Howson ◽  
David Kratz ◽  
John K. Tien
Keyword(s):  
Solid Solution ◽  
Volume Fraction ◽  
Stress Rupture ◽  
Oxide Dispersion Strengthened ◽  
Solid Solution Alloy ◽  
Oxide Dispersion ◽  
Creep And Stress Rupture ◽  
Mechanically Alloyed ◽  
Fine Microstructure ◽  
Nickel Base

The previous paper briefly described the fine microstructure of a mechanically alloyed oxide dispersion strengthened nickel-base solid solution. This note examines the fine microstructure of another mechanically alloyed system. This alloy differs from the one described previously in that it is more generously endowed with coherent precipitate γ forming elements A1 and Ti and it contains a higher volume fraction of the finely dispersed Y2O3 oxide. An interesting question to answer in the comparative study of the creep and stress rupture of these two ODS systems is the role of the precipitate γ' in the mechanisms of creep and stress rupture in alloys already containing oxide dispersoids.The nominal chemical composition of this alloy is Ni - 20%Cr - 2.5%Ti - 1.5% A1 - 1.3%Y203 by weight. The system receives a three stage heat treatment-- the first designed to produce a coarse grain structure similar to the solid solution alloy but with a smaller grain aspect ratio of about ten.

Influence of pulsed streams of deuterium ions and deuterium plasma on oxide dispersion strengthened ferritic steels

2020 ◽  
pp. 16-27
Author(s):  
V.A. Gribkov ◽  
◽  
E.V. Demina ◽  
A.S. Demin ◽  
S.A. Maslyaev ◽  
...  
Keyword(s):  
Oxide Dispersion Strengthened ◽  
Ferritic Steels ◽  
Oxide Dispersion ◽  
Deuterium Plasma

Oxide dispersion-strengthened silver: manufacturing and properties

2003 ◽  
Vol 94 (5) ◽  
pp. 587-592 ◽  
Author(s):  
Uta Grundmann ◽  
Martin Heilmaier ◽  
Ulrich Martin ◽  
Heinrich Oettel ◽  
Ludwig Schultz
Keyword(s):  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion

(DURIP98/99) Slow Positron Beam for Material and Surface Characterization

2000 ◽  
Author(s):  
Yanching C. Jean ◽  
Thomas C. Sandreczki
Keyword(s):  
Surface Characterization ◽  
Positron Beam ◽  
Slow Positron

scholarly journals ODS EUROFER Steel Strengthened by Y-(Ce, Hf, La, Sc, and Zr) Complex Oxides

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1148 ◽  
Author(s):  
Roman Husák ◽  
Hynek Hadraba ◽  
Zdeněk Chlup ◽  
Milan Heczko ◽  
Tomáš Kruml ◽  
...  
Keyword(s):  
Grain Size ◽  
Yield Strength ◽  
Complex Oxides ◽  
Oxide Dispersion Strengthened ◽  
Interparticle Spacing ◽  
Oxide Dispersion ◽  
Strengthening Effect ◽  
Dispersion Strengthening ◽  
Doping Element ◽  
Average Grain Size

Oxide dispersion-strengthened (ODS) materials contain homogeneous dispersions of temperature-stable nano-oxides serving as obstacles for dislocations and further pinning of grain boundaries. The strategy for dispersion strengthening based on complex oxides (Y-Hf, -Zr, -Ce, -La) was developed in order to refine oxide dispersion to enhance the dispersion strengthening effect. In this work, the strengthening of EUROFER steel by complex oxides based on Y and elements of the IIIB group (lanthanum, scandium) and IVB group (cerium, hafnium, zirconium) was explored. Interparticle spacing as a dispersoid characteristic appeared to be an important factor in controlling the dispersion strengthening contribution to the yield strength of ODS EUROFER steels. The dispersoid size and average grain size of ODS EUROFER steel were altered in the ranges of 5–13 nm and 0.6–1.7 µm, respectively. Using this strategy, the yield strength of the prepared alloys varied between 550 MPa and 950 MPa depending on the doping element.

Tensile deformation and fracture behavior of an oxide dispersion strengthened copper alloy

2000 ◽  
Vol 21 (3) ◽  
pp. 191-198 ◽  
Author(s):  
T.S Srivatsan ◽  
N Narendra ◽  
J.D Troxell
Keyword(s):  
Copper Alloy ◽  
Fracture Behavior ◽  
Tensile Deformation ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion ◽  
Deformation And Fracture

High-strength diffusion bonding of oxide-dispersion-strengthened tungsten and CuCrZr alloy through surface nano-activation and Cu plating

2021 ◽  
Author(s):  
Yuanyuan Chen ◽  
Yuan Huang ◽  
Fei Li ◽  
Lu Han ◽  
Dongguang Liu ◽  
...  
Keyword(s):  
Diffusion Bonding ◽  
High Strength ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion

Solid-solution strengthening by Al and Cr in FeCrAl oxide-dispersion-strengthened alloys

2021 ◽  
pp. 141076
Author(s):  
Shigeharu Ukai ◽  
Yasuhide Yano ◽  
Toshihiko Inoue ◽  
Takashi Sowa
Keyword(s):  
Solid Solution ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion ◽  
Solid Solution Strengthening ◽  
Solution Strengthening
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