Impact of slide diamond burnishing additional parameters on fatigue behaviour of 2024-T3 Al alloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00326806" target="_blank" >RIV/68407700:21340/19:00326806 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1111/ffe.12915" target="_blank" >https://doi.org/10.1111/ffe.12915</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/ffe.12915" target="_blank" >10.1111/ffe.12915</a>
Alternative languages
Result language
angličtina
Original language name
Impact of slide diamond burnishing additional parameters on fatigue behaviour of 2024-T3 Al alloy
Original language description
One of the methods for increasing fatigue life of symmetric rotary metal components is slide diamond burnishing (SDB). This method is implemented on conventional and computer numerical control machine tools by means of simple equipment, which is its main advantage. The SDB basic parameters are diamond insert radius, burnishing force, feed rate, and burnishing velocity. The additional ones are number of passes, working scheme, and lubrication conditions. The effect of SDB additional parameters on the fatigue behaviour of 2024-T3 Al alloy was experimentally studied. Groups of smooth and notched hourglass-shaped specimens were slide burnished using different combinations of additional SDB parameters and then were subjected to bending fatigue tests. The residual stresses, introduced by SDB, were measured by X-ray diffraction technique. The near-surface microstructure of the slide-burnished specimens was investigated. Based on the results obtained, it was established that SDB produces two main effects, which depend on SDB additional parameters. The essence of the macroeffect is creation of residual compressive stresses in the superficial and subsurface layers. This stresses retard the formation and growth of fatigue macrocracks and thus increase the lifetime of slide-burnished components. The microeffect is expressed in modifying the microstructure of the surface and subsurface layers, correspondingly, refining the grain and homogenizing and reducing the pores in the material. Such microstructure is characterized by increased plasticity and fatigue crack resistance. The fatigue life depends on the combination of these two effects. Thus, the desired fatigue behaviour of the slide-burnished component can be ensured through an appropriate selection of the governing additional SDB parameters.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fatigue & Fracture of Engineering Materials & Structures
ISSN
8756-758X
e-ISSN
1460-2695
Volume of the periodical
42
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
363-373
UT code for WoS article
000452237300028
EID of the result in the Scopus database
2-s2.0-85052823684