Szczegóły publikacji
Opis bibliograficzny
An insight into the defects-driven plasticity in ductile cast irons / Giuliano Angella, Marcello Taloni, Marcin GÓRNY, Jacek TARASIUK, Sebastian WROŃSKI, Roberto Montanari, Matteo Pedranz, Matteo Benedetti, Vigilio Fontanari, Danilo Lusuardi // Materials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1944. — 2023 — vol. 16 iss. 10 art. no. 3748, s. 1–27. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 26–27, Abstr. — Publikacja dostępna online od: 2023-05-15
Autorzy (10)
- Angella Giuliano
- Taloni Marcello
- AGHGórny Marcin
- AGHTarasiuk Jacek
- AGHWroński Sebastian
- Montanari Roberto
- Pedranz Matteo
- Benedetti Matteo
- Fontanari Vigilio
- Lusuardi Danilo
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 146759 |
|---|---|
| Data dodania do BaDAP | 2023-05-19 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ma16103748 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Materials |
Abstract
The microstructure and tensile behavior of two heavy section castings that had chemical compositions typical of GJS400 were investigated. Conventional metallography, fractography, and micro-Computer Tomography (μ-CT) were employed, enabling the quantification of the volume fractions of eutectic cells with degenerated Chunky Graphite (CHG), which was identified as the major defect in the castings. The Voce equation approach was exploited to evaluate the tensile behaviors of the defective castings for integrity assessment. The results demonstrated that the Defects-Driven Plasticity (DDP) phenomenon, which refers to an unexpected regular plastic behavior related to defects and metallurgical discontinuities, was consistent with the observed tensile behavior. This resulted in a linearity of Voce parameters in the Matrix Assessment Diagram (MAD), which contradicts the physical meaning of the Voce equation. The findings suggest that the defects, such as CHG, contribute to the linear distribution of Voce parameters in the MAD. Furthermore, it is reported that the linearity in the MAD of Voce parameters for a defective casting is equivalent to the existence of a pivotal point in the differential data of the tensile strain hardening data. This pivotal point was exploited to propose a new material quality index assessing the integrity of castings.