Fatigue crack growth behavior of Inconel 718 produced by selective laser melting

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00464560" target="_blank" >RIV/68081723:_____/16:00464560 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3221/IGF-ESIS.36.04" target="_blank" >http://dx.doi.org/10.3221/IGF-ESIS.36.04</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3221/IGF-ESIS.36.04" target="_blank" >10.3221/IGF-ESIS.36.04</a>

Result language

angličtina

Original language name

Fatigue crack growth behavior of Inconel 718 produced by selective laser melting

Original language description

Additive layer manufacturing has recently gained a lot of interest due to the feasibility of producing metallic components directly from a computer-aided design file of the part. Selective laser melting, one of the main additive layer manufacturing technologies, is currently capable of producing nearly ready-to-use parts made of metallic materials. Their microstructure, however, differs substantially from that produced by conventional manufacturing. That is why a detailed study and knowledge of the relation of specific microstructure, parameters of the selective laser melting process and mechanical properties is of utmost significance. This study reports on the investigation of the fatigue crack growth behavior in Inconel 718 superalloy produced by selective laser melting. The fatigue crack growth curve and the threshold values of the stress intensity factor for propagation of long cracks were experimentally determined on compact-tension specimens fabricated using a RENISHAW A250 system and the recommended processing parameters. The fatigue crack growth rates and the fatigue crack paths both in the threshold and in the Paris region were investigated. The crack propagation curves and the crack propagation threshold were compared with literature data describing the behavior of conventionally manufactured material. The mechanism of fatigue crack growth was discussed in terms of the specific microstructure produced by selective laser melting.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Frattura ed Integrita Strutturale

ISSN

1971-8993

e-ISSN

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Volume of the periodical

35

Issue of the periodical within the volume

10

Country of publishing house

IT - ITALY

Number of pages

10

Pages from-to

31-40

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-84951875212