Fatigue behaviour of maraging steel samples produced by SLM under constant and variable amplitude loading

Branco, R.; Silva, J.; Ferreira, J. Martins; Costa, J.D.; Capela, C.; Berto, F.; Santos, L.; Antunes, F.V.

http://hdl.handle.net/10400.8/16637

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Resumo(s)

This paper addresses the fatigue behaviour of AISI 18Ni300 samples manufactured by selective laser melting under both constant- and variable-amplitude loading. The fatigue campaign encompasses a series of low-cycle strain-controlled fatigue tests performed under fully-reversed conditions at various strain amplitudes, and a series of high-cycle stress-controlled fatigue tests performed under pulsating conditions at various stress ranges considering both constant- and variable-amplitude loading spectra. Fatigue life predictions are performed on the basis of the SWT parameter along with the Miner’s law. This approach has demonstrated to be sufficiently reliable to predict the lifetime expectancy in maraging steel samples produced by selective laser melting.

Palavras-chave

AISI 18Ni300 maraging steel selective laser melting variable-amplitude loadig fatigue life prediction

URI

http://hdl.handle.net/10400.8/16637

Citação

R. Branco, J. Silva, J. Martins Ferreira, J.D. Costa, C. Capela, F. Berto, L. Santos, F.V. Antunes, Fatigue behaviour of maraging steel samples produced by SLM under constant and variable amplitude loading, Procedia Structural Integrity, Volume 22, 2019, Pages 10-16, ISSN 2452-3216, https://doi.org/10.1016/j.prostr.2020.01.002.

Editora

Elsevier BV

DOI

10.1016/j.prostr.2020.01.002

Coleções

ESTG - Artigos em revistas internacionais

Licença CC

cclicense-by-nc-nd

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