Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 7, No. 25 (2013)

Pearlitic ductile cast iron: damaging micromechanisms at crack tip

Author and affiliation details
  • F. Iacoviello Corresponding author iacoviello@unicas.it
  • V. Di Cocco
  • A. Rossi
  • M. Cavallini
DOI
10.3221/IGF-ESIS.25.15
Pages
Pages 102-108
Published
Published inVol. 7, No. 25 (2013)Go to the issue

Abstract

Ductile cast irons (DCIs) are characterized by a wide range of mechanical properties, mainly depending on microstructural factors, as matrix microstructure (characterized by phases volume fraction, grains size and grain distribution), graphite nodules (characterized by size, shape, density and distribution) and defects presence (e.g., porosity, inclusions, etc.). Versatility and higher performances at lower cost if compared to steels
with analogous performances are the main DCIs advantages. In the last years, the role played by graphite nodules was deeply investigated by means of tensile and fatigue tests, performing scanning electron microscope (SEM) observations of specimens lateral surfaces during the tests (“in situ” tests) and identifying different damaging micromechanisms. In this work, a pearlitic DCIs fatigue resistance is investigated considering both fatigue crack propagation (by means of Compact Type specimens and according to ASTM E399 standard) and overload effects, focusing the interaction between the crack and the investigated DCI microstructure (pearlitic matrix and graphite nodules).
On the basis of experimental results, and considering loading conditions and damaging micromechanisms, the
applicability of ASTM E399 standard on the characterization of fatigue crack propagation resistance in ferritic
DCIs is critically analyzed, mainly focusing the stress intensity factor amplitude role.

Keywords

Article history

  1. ReceivedUntil the next stage: 0 days
  2. AcceptedUntil the next stage: 0 days
  3. Published

How to cite

APA

Iacoviello, F., Di Cocco, V., Rossi, A., & Cavallini, M. (2013). Pearlitic ductile cast iron: damaging micromechanisms at crack tip. Fracture and Structural Integrity, 7(25), Pages 102–108. https://doi.org/10.3221/IGF-ESIS.25.15

IEEE

F. Iacoviello, V. Di Cocco, A. Rossi, and M. Cavallini, “Pearlitic ductile cast iron: damaging micromechanisms at crack tip,” Fracture and Structural Integrity, vol. 7, no. 25, pp. Pages 102–108, 2013, doi: 10.3221/IGF-ESIS.25.15.

MLA

Iacoviello, F., et al. “Pearlitic ductile cast iron: damaging micromechanisms at crack tip.” Fracture and Structural Integrity, vol. 7, no. 25, 2013, pp. Pages 102–108. https://doi.org/10.3221/IGF-ESIS.25.15.

Chicago

Iacoviello, F., V. Di Cocco, A. Rossi, and M. Cavallini. 2013. “Pearlitic ductile cast iron: damaging micromechanisms at crack tip.” Fracture and Structural Integrity 7 (25): Pages 102–108. https://doi.org/10.3221/IGF-ESIS.25.15.

Harvard

Iacoviello, F., Di Cocco, V., Rossi, A. and Cavallini, M. (2013) ‘Pearlitic ductile cast iron: damaging micromechanisms at crack tip’, Fracture and Structural Integrity, 7(25), pp. Pages 102–108. doi: 10.3221/IGF-ESIS.25.15.

Vancouver

Iacoviello F, Di Cocco V, Rossi A, Cavallini M. Pearlitic ductile cast iron: damaging micromechanisms at crack tip. Fracture and Structural Integrity. 2013;7(25):Pages 102-108. doi:10.3221/IGF-ESIS.25.15

BibTeX

@article{iacoviello2013, author = {Iacoviello, F. and Di Cocco, V. and Rossi, A. and Cavallini, M.}, title = {Pearlitic ductile cast iron: damaging micromechanisms at crack tip}, journal = {Fracture and Structural Integrity}, year = {2013}, volume = {7}, number = {25}, pages = {Pages 102--108}, doi = {10.3221/IGF-ESIS.25.15}, url = {https://doi.org/10.3221/IGF-ESIS.25.15}, issn = {1971-8993} }

RIS

TY - JOUR AU - Iacoviello, F. AU - Di Cocco, V. AU - Rossi, A. AU - Cavallini, M. TI - Pearlitic ductile cast iron: damaging micromechanisms at crack tip JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2013 DA - 2013/04/11 VL - 7 IS - 25 SP - Pages 102 EP - 108 DO - 10.3221/IGF-ESIS.25.15 UR - https://doi.org/10.3221/IGF-ESIS.25.15 SN - 1971-8993 ER -

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