scholarly journals Influence of Stress Change on the Fatigue Behavior and Fatigue Life of Aluminum Oxide-Dispersion-Strengthening Copper Alloy at Room Temperature and 350.DEG.C.

2004 ◽  
Vol 53 (2) ◽  
pp. 182-187 ◽  
Author(s):  
Norio KAWAGOISHI ◽  
Hironobu NISITANI ◽  
Eiji KONDO ◽  
Atsunori SHIMAMOTO ◽  
Rieko TASHIRO
Keyword(s):  
Fatigue Life ◽  
Aluminum Oxide ◽  
Copper Alloy ◽  
Room Temperature ◽  
Fatigue Behavior ◽  
Stress Change ◽  
Oxide Dispersion ◽  
Dispersion Strengthening ◽  
Oxide Dispersion Strengthening

scholarly journals Notch Sensitivity of Aluminum Oxide Dispersion Strengthening Copper Alloy.

1999 ◽  
Vol 65 (640) ◽  
pp. 2518-2523
Author(s):  
Kenji SHIMANA ◽  
Norio KAWAGOISHI ◽  
Hironobu NISITANI ◽  
Masahiro GOTO ◽  
Eiji KONDO
Keyword(s):  
Aluminum Oxide ◽  
Copper Alloy ◽  
Notch Sensitivity ◽  
Oxide Dispersion ◽  
Dispersion Strengthening ◽  
Oxide Dispersion Strengthening

scholarly journals Performance of wear resistant MCrAlY coatings with oxide dispersion strengthening

Wear ◽  
2020 ◽  
Vol 444-445 ◽  
pp. 203116
Author(s):  
Giovanni Bolelli ◽  
Christoph Vorkötter ◽  
Luca Lusvarghi ◽  
Stefania Morelli ◽  
Veronica Testa ◽  
...  
Keyword(s):  
Oxide Dispersion ◽  
Dispersion Strengthening ◽  
Oxide Dispersion Strengthening ◽  
Wear Resistant ◽  
Mcraly Coatings

scholarly journals Oxide dispersion strengthening of nickel electrodeposits for microsystem applications

2004 ◽  
Vol 35 (8) ◽  
pp. 2351-2360 ◽  
Author(s):  
S. H. Goods ◽  
R. P. Janek ◽  
T. E. Buchheit ◽  
J. R. Michael ◽  
P. G. Kotula
Keyword(s):  
Oxide Dispersion ◽  
Dispersion Strengthening ◽  
Oxide Dispersion Strengthening ◽  
Nickel Electrodeposits

The Fatigue Behavior of γ/α2 Titanium Aluminides

1990 ◽  
Vol 213 ◽  
Author(s):  
W.E. Dowling ◽  
W.T. Donlon ◽  
J.E. Allison
Keyword(s):  
Grain Size ◽  
Fatigue Life ◽  
Room Temperature ◽  
High Cycle Fatigue ◽  
Titanium Aluminides ◽  
Volume Fraction ◽  
Thermomechanical Processing ◽  
Fatigue Behavior ◽  
Cycle Fatigue ◽  
Fine Grain

ABSTRACTAxial load controlled high cycle fatigue experiments were conducted on the γ/α2 alloy, Ti-48A1-1V-0.2C (at%), at 23 and 815°C. Four different microstructures, produced through thermomechanical processing, were evaluated to examine the influence of grain size and α2 content on fatigue behavior. The load controlled fatigue life was significantly reduced by increasing grain size and unaffected by α2 content at both 23 and 815°C. Although, α2 content did not greatly influence high cycle fatigue life, the room temperature crack initiation and fast fracture was changed from transgranular to partially intergranular as the volume fraction of α2 was reduced in the fine grain size material. The fatigue strength at 107 cycles (FS) to ultimate tensile strength (UTS) ratio was 0.8 to 0.9 at 23°C and 0.5 to 0.6 at 815°C for all microstructures examined. Low tensile ductility, high work hardening rate and the difficulty in forming strain local-izations all aided the high FS/UTS ratio. The dislocation microstructures produced by fatigue at room temperature were examined in the fine grained high α2 (ductile) microstructure. They consisted of loop patches of all <110] regular dislocations without any <101] or <011] super dislocations because of the large difference in CRSS for these dislocation. The inability to nucleate and move superdislocations inhibited the formation of persistent slip bands as is often found in high and intermediate stacking fault FCC metals.

Study on bending fretting fatigue damage in 17CrNiMo6 steel

2017 ◽  
Vol 31 (16-19) ◽  
pp. 1744020 ◽  
Author(s):  
J. F. Peng ◽  
X. Jin ◽  
Z. B. Xu ◽  
Z. B. Cai ◽  
X. Y. Zhang ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Fatigue Damage ◽  
Room Temperature ◽  
Fatigue Behavior ◽  
Fretting Fatigue ◽  
Fatigue Load ◽  
Bending Fatigue ◽  
Fatigue Stress ◽  
Contact Loads ◽  
Surface Delamination

Bending fretting fatigue behavior of 17CrNiMo6 alloy structural steel at room temperature was investigated under different bending and contact loads; and the [Formula: see text]–[Formula: see text] curve also was built up. The results showed that the [Formula: see text]–[Formula: see text] curve had a “C” shape. The bending fretting fatigue life was mainly dependent on the bending fatigue stress and fretting displacement. The limit of the specimens and the fretting fatigue life were dramatically decreased by fretting actions. The bending fretting fatigue damage changed under varied bending fatigue stress levels. When the wear first occurred, there is a lower bending fatigue stress; and with a higher bending fatigue load, microcracks were generated. However, some serious wear and surface delamination were observed under the highest fatigue load.

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