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In‐situ microscopic analysis of ferritic ductile iron during tensile loading: Relation between matrix heterogeneities and damage mechanisms

Fernandino, Diego Omar et al · Wiley Blackwell Publishing, Inc · 2019

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Author / responsible party
Fernandino, Diego Omar et al
Publisher
Wiley Blackwell Publishing, Inc
Year
2019
ISSN
2220-2231
ISSN
2220-2231
Language
English

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An in‐situ microscopic analysis of the damage mechanisms of ferritic ductile iron under uniaxial tensile testing is carried out in this work. The experimental methodology combines specialized metallography techniques, in‐situ optical microscopy observation during loading, and digital image correlation analysis to obtain the strain values at the microscopic level. The results show that the crack initiation is preferentially located at matrix‐nodule interface and ferritic grain boundaries. The propagation of multiple cracks across the internodular ligaments that later coalesce into a single dominant crack is responsible for the final fracture. Noticeably, despite the heterogeneous nature of the Last‐to‐Freeze zones, the cracks propagate avoiding these microsegregated areas. The results provide new insights for the better understanding of the influence of ferritic ductile iron heterogeneities on the fracture process for quasistatic uniaxial loading. Fil: Fernandino, Diego Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Fil: Boeri, Roberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina

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APA 7

Fernandino, D. O. E. A. (2019). In‐situ microscopic analysis of ferritic ductile iron during tensile loading: Relation between matrix heterogeneities and damage mechanisms. http://hdl.handle.net/11336/119236

MLA

Fernandino, Diego Omar et al. "In‐situ microscopic analysis of ferritic ductile iron during tensile loading: Relation between matrix heterogeneities and damage mechanisms." 2019. http://hdl.handle.net/11336/119236.

Chicago

Fernandino, Diego Omar et al. 2019. "In‐situ microscopic analysis of ferritic ductile iron during tensile loading: Relation between matrix heterogeneities and damage mechanisms.". http://hdl.handle.net/11336/119236.

Harvard

Fernandino, D. O. E. A. 2019, In‐situ microscopic analysis of ferritic ductile iron during tensile loading: Relation between matrix heterogeneities and damage mechanisms, Wiley Blackwell Publishing, Inc, available at: http://hdl.handle.net/11336/119236 [Accessed 9 Aug. 2026].

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Title
In‐situ microscopic analysis of ferritic ductile iron during tensile loading: Relation between matrix heterogeneities and damage mechanisms
Author / contributors
Fernandino, Diego Omar et al
Publisher
Wiley Blackwell Publishing, Inc
Publication year
2019
ISSN
2220-2231
ISSN
2220-2231
Language
English

Subjects

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DIGITAL IMAGE CORRELATION; DUCTILE IRON; FRACTURE MECHANISMS; MECHANICAL TESTING; https://purl.org/becyt/ford/2.5; https://purl.org/becyt/ford/2
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