Oxidation Behavior of Oxide Dispersion-Strengthened W–Ni Alloys

2019 ◽  
Vol 93 (1-2) ◽  
pp. 17-28 ◽  
Author(s):  
V. R. Talekar ◽  
A. Patra ◽  
S. K. Sahoo
Keyword(s):  
Oxidation Behavior ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion ◽  
Ni Alloys

Oxidation of Oxide Dispersion Strengthened Steels: I. Influence of Alloy Composition

2013 ◽  
Vol 748 ◽  
pp. 86-90 ◽  
Author(s):  
Jae Hoon Lee
Keyword(s):  
Oxidation Resistance ◽  
Oxidation Behavior ◽  
Alloy Composition ◽  
Critical Role ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion ◽  
Temperature Oxidation ◽  
Ods Steel ◽  
Time Period ◽  
Ods Steels

Oxidation tests of 18%Cr-oxide dispersion strengthened (ODS) steels with and without 5%Al were carried out in air at 700900 °C for time period up to 540 h. No minor alloying elements affect the oxidation behavior and the Al concentration between these ODS steels is a main difference. Cr2O3and (Fe,Cr)3O4spinel oxides exist on the surface of 18Cr-ODS steel; however, the surface oxide of 18Cr5Al-ODS steel is comprised of only Al2O3. Oxidation resistance of the ODS steels exposed at 700 °C is much better than Incoloy800 of which the Cr content is larger and their oxidation behavior doesnt follow the aluminum content. These results suggest that oxide particles dispersion and grain refinement play a more critical role than alloy composition in the high-temperature oxidation resistance.

scholarly journals Effect of Cr and Y2O3 on the oxidation behavior of Co-based oxide dispersion strengthened superalloys at 900 °C

2017 ◽  
Vol 127 ◽  
pp. 147-156 ◽  
Author(s):  
Hao Yu ◽  
Shigeharu Ukai ◽  
Shigenari Hayashi ◽  
Naoko Hori Oono
Keyword(s):  
Oxidation Behavior ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion

The effects of Cr and Al concentrations on the oxidation behavior of oxide dispersion strengthened ferritic alloys

2013 ◽  
Vol 76 ◽  
pp. 310-316 ◽  
Author(s):  
Tong Liu ◽  
Chenxi Wang ◽  
Hailong Shen ◽  
Wusheng Chou ◽  
Noriyuki Y. Iwata ◽  
...  
Keyword(s):  
Oxidation Behavior ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion ◽  
Ferritic Alloys

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.

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
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