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A brief note on entire fracture surface topography parameters for 18Ni300 maraging steel produced by LB-PBF after LCF
Abstrakt
The concept of entire fracture surface investigation is helpful in explaining fatigue phenomena. In this paper, this method has been applied for 18Ni300 maraging steel using a 3D measurement system. Before post-mortem analysis, the specimens produced by laser beam powder bed fusion (LB-PBF) were tested under low-cycle fatigue (LCF) for eight strain amplitudes in the interval 0.3% to 1.0%. The attention was placed on the relationship between the fatigue features, represented by the strain level and the fatigue life as well as the fracture surface topography evaluated in the form of areal, volume and fractal dimension parameters. It was found that fatigue life predictions calculated using the core material volume Vmc, obtained with the entire fracture surface method were within a scatter band with factors of ±1.5. The present results can be useful for the analysis of damaged structural elements exposed to LCF, especially for materials produced by additive manufacturing (AM). The outcomes of this brief note are important for the development of other fractographic methods and validation of fatigue life evaluation procedures.
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Autorzy (6)
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Ricardo Branco
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Shun-Peng Zhu
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José Domingos Costa
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
-
ENGINEERING FAILURE ANALYSIS
nr 153,
ISSN: 1350-6307 - Język:
- angielski
- Rok wydania:
- 2023
- Opis bibliograficzny:
- Macek W., Branco R., Podulka P., Kopec M., Zhu S., Domingos Costa J.: A brief note on entire fracture surface topography parameters for 18Ni300 maraging steel produced by LB-PBF after LCF// ENGINEERING FAILURE ANALYSIS -, (2023), s.107541-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.engfailanal.2023.107541
- Źródła finansowania:
-
- Publikacja bezkosztowa
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 194 razy
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