Fatigue lifetime assessment and crack propagation of Ni-based VDM Alloy 699 XA produced by additive manufacturing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F24%3A00582279" target="_blank" >RIV/68081723:_____/24:00582279 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.prostr.2023.12.005" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2023.12.005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2023.12.005" target="_blank" >10.1016/j.prostr.2023.12.005</a>

Result language

angličtina

Original language name

Fatigue lifetime assessment and crack propagation of Ni-based VDM Alloy 699 XA produced by additive manufacturing

Original language description

The present work focuses on the low-cycle fatigue (LCF) behavior of conventionally and additively manufactured (laser powder nbed fusion (LPBF) technique, Ni-based VDM Alloy 699 XA. LCF tests were performed on miniature cylindrical specimens in a nsymmetrical push-pull cycle under strain control with a constant total strain amplitude at 23°C. Cyclic hardening/softening curves, ncyclic stress-strain curves, and fatigue life curves were obtained. Despite the present manufacturing defects associated with the nLPBF technology, the fatigue lifetime of the LPBF manufactured material is higher than that of conventionally prepared material. nFatigue crack initiation sites and fatigue crack propagation areas were investigated by means of scanning electron microscopyn(SEM). A quantitative fractography of fracture surfaces was introduced to provide a detailed description of fatigue crack growth nfrom the evaluation of striation spacing. The dependency of the stress intensity factor range on macroscopic crack growth rates was ndisplayed in the form of the Paris Law. The differences in fatigue lifetimes and fatigue crack growth rates of additively nmanufactured and hot rolled solution annealed alloy 699 XA plate material were discussed and correlated with respect to the nmicrostructural specifics of both material batches.

Czech name

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Czech description

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Type

D - Article in proceedings

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

2024

Confidentiality

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

Article name in the collection

Procedia Structural Intergrity

ISBN

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ISSN

2452-3216

e-ISSN

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Number of pages

9

Pages from-to

43-51

Publisher name

Elsevier

Place of publication

Amsterdam

Event location

London

Event date

Sep 12, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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