Effect of slide burnishing basic parameters on fatigue performance of 2024-Т3 high-strength aluminium alloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00309959" target="_blank" >RIV/68407700:21340/17:00309959 - isvavai.cz</a>

Result on the web

<a href="http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1460-2695/homepage/ProductInformation.html" target="_blank" >http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1460-2695/homepage/ProductInformation.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ffe.12608" target="_blank" >10.1111/ffe.12608</a>

Result language

angličtina

Original language name

Effect of slide burnishing basic parameters on fatigue performance of 2024-Т3 high-strength aluminium alloy

Original language description

The effect of slide burnishing (SB) on the high-cycle fatigue (HCF) performance of 2024-T3 high-strength aluminium alloy has been studied. After SB with optimum basic process parameters under `minimum roughness’ criterion, the 107 cycle fatigue strength increases with 25% – from 180 to 225 MPa, fatigue life is increased more than 50 times, and the roughness obtained reaches up to Ra = 0.05 μm. Further, various combinations of burnishing force and deforming element radius have been applied to reach maximum HCF performance despite roughness obtained. It has been established that with the optimum combination under `maximum HCF performance’ criterion, 107 cycle fatigue strength increases with 44% – from 180 to 260 MPa as the roughness obtained is Ra = 0.25 μm. This significant enhancement in the HCF performance is due to introduced beneficial residual compressive stresses. They shift the fatigue crack initiation site from surface to subsurface layers and, as a result, the nucleation and propagation of the first-mode fatigue cracks are retarded. In order to establish the fatigue limit (based on 2 x 108 cycles), a combined approach, based on limited Wöhler’s curve and Locati’s method, has been applied. The fatigue limit of 2024-T3 high-strength aluminium alloy can be increased up to 250 MPa using SB with optimal basic parameters under `maximum HCF performance’ criterion.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fatigue & Fracture of Engineering Materials & Structures

ISSN

8756-758X

e-ISSN

1460-2695

Volume of the periodical

40

Issue of the periodical within the volume

11

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

1893-1904

UT code for WoS article

000412226900018

EID of the result in the Scopus database

2-s2.0-85017396024