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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