A cost-effective optimization approach for improving the fatigue strength of diamond-burnished steel components

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00346257" target="_blank" >RIV/68407700:21340/21:00346257 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s40430-020-02723-6" target="_blank" >https://doi.org/10.1007/s40430-020-02723-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s40430-020-02723-6" target="_blank" >10.1007/s40430-020-02723-6</a>

Result language

angličtina

Original language name

A cost-effective optimization approach for improving the fatigue strength of diamond-burnished steel components

Original language description

Diamond burnishing is a surface modification method aimed at improvements in the surface integrity (SI) and operating behavior of metal components. A cost-effective optimization approach for increasing the fatigue strength of diamond-burnished steel components has been developed. The basic idea is that the fatigue strength can be controlled by controlling some of the SI characteristics (surface micro-hardness, hardened-layer depth and roughness) whose measurements are not time-consuming and expensive. Thus, a multi-objective optimization task was set and solved using the weight vector method. The governing factors were the diamond radius and burnishing force. The resulting fatigue limit differed from the maximum fatigue limit by a mere 0.44%, which proves the effectiveness of the proposed approach. The results obtained for the fatigue limit are explained by means of an X-ray analysis of the introduced residual stresses and an analysis of the microstructures of the surface and subsurface layers. It has been established that a greater depth of the affected zone coupled with a smaller gradient in the alteration of the microstructure in depth provides larger fatigue strength.

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

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Name of the periodical

Journal of the Brazilian Society of Mechanical Sciences and Engineering

ISSN

1678-5878

e-ISSN

1806-3691

Volume of the periodical

43

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

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UT code for WoS article

000606417800006

EID of the result in the Scopus database

2-s2.0-85098621887