Shot peening as a pre-treatment to anodic oxidation coating process of AW 6082 aluminum for fatigue life improvement
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00479875" target="_blank" >RIV/68081723:_____/17:00479875 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1007/s00170-017-0776-1" target="_blank" >http://dx.doi.org/10.1007/s00170-017-0776-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00170-017-0776-1" target="_blank" >10.1007/s00170-017-0776-1</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Shot peening as a pre-treatment to anodic oxidation coating process of AW 6082 aluminum for fatigue life improvement
Popis výsledku v původním jazyce
Shot peening with glass beads was used as a pretreatment to anodic oxidation of AW 6082 aluminum alloy to eliminate the negative effect of the anodized layer on fatigue strength. Shot peening with intensity 6N and coverage of 100% was able to significantly improve the fatigue strength of the experimental material and when N = 3 × 109 cycles is considered the fatigue strength increased from sigma a = 80 MPa to sigma a = 110 MPa. Creation of the anodized surface layer with thickness of approximately 30 micrometers on the pre-treated surface decreased the fatigue strength, when compared to the shot peened surface, almost in the whole measured region, however, the fatigue strength was still higher than for not treated material. The positive effect of shot peening on fatigue strength was a result of creation of compressive residual stress field with maximum of - 200 MPa and depth of 350 micrometers. Fracture surface analysis showed that this deformed surface layer had increased resistance to fatigue crack initiation and propagation in the early stages and cracks created on the anodized surface layer were unable to propagate directly to the material and new initiation of fatigue crack was required, however, it was still accelerated by the sharp notch which the crack created.
Název v anglickém jazyce
Shot peening as a pre-treatment to anodic oxidation coating process of AW 6082 aluminum for fatigue life improvement
Popis výsledku anglicky
Shot peening with glass beads was used as a pretreatment to anodic oxidation of AW 6082 aluminum alloy to eliminate the negative effect of the anodized layer on fatigue strength. Shot peening with intensity 6N and coverage of 100% was able to significantly improve the fatigue strength of the experimental material and when N = 3 × 109 cycles is considered the fatigue strength increased from sigma a = 80 MPa to sigma a = 110 MPa. Creation of the anodized surface layer with thickness of approximately 30 micrometers on the pre-treated surface decreased the fatigue strength, when compared to the shot peened surface, almost in the whole measured region, however, the fatigue strength was still higher than for not treated material. The positive effect of shot peening on fatigue strength was a result of creation of compressive residual stress field with maximum of - 200 MPa and depth of 350 micrometers. Fracture surface analysis showed that this deformed surface layer had increased resistance to fatigue crack initiation and propagation in the early stages and cracks created on the anodized surface layer were unable to propagate directly to the material and new initiation of fatigue crack was required, however, it was still accelerated by the sharp notch which the crack created.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20306 - Audio engineering, reliability analysis
Návaznosti výsledku
Projekt
<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
International Journal of Advanced Manufacturing Technology
ISSN
0268-3768
e-ISSN
—
Svazek periodika
93
Číslo periodika v rámci svazku
9-12
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
9
Strana od-do
3315-3323
Kód UT WoS článku
000416179700028
EID výsledku v databázi Scopus
2-s2.0-85023752209