Abstract
Ductile failure in nodular cast iron is explored through uniaxial tension and notched tension experiments. Specimens obtained through tests interrupted at various stages of deformation and failure evolution were examined through quantitative microscopy to discern the mechanisms of failure and to quantitatively evaluate the local strain evolution. Fractographic observations were used to identify the onset and evolution of damage processes during the deformation and failure of nodular cast iron. These tests and observations reveal that void growth and coalescence occurred only within a narrow localized band, whose size is comparable with the size of the graphite nodules; no statistically significant changes in the porosity were observed outside this zone.
| Original language | English |
|---|---|
| Pages (from-to) | 2359-2368 |
| Number of pages | 10 |
| Journal | Acta Materialia |
| Volume | 60 |
| Issue number | 5 |
| DOIs | |
| State | Published - Mar 1 2012 |
| Externally published | Yes |
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Keywords
- Damage nucleation
- Failure mechanism
- Porosity
ASJC Scopus subject areas
- Ceramics and Composites
- Metals and Alloys
- Polymers and Plastics
- Electronic, Optical and Magnetic Materials
Cite this
Deformation and failure in nodular cast iron. / Ghahremaninezhad-M, Ali; Ravi-Chandar, K.
In: Acta Materialia, Vol. 60, No. 5, 01.03.2012, p. 2359-2368.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Deformation and failure in nodular cast iron
AU - Ghahremaninezhad-M, Ali
AU - Ravi-Chandar, K.
PY - 2012/3/1
Y1 - 2012/3/1
N2 - Ductile failure in nodular cast iron is explored through uniaxial tension and notched tension experiments. Specimens obtained through tests interrupted at various stages of deformation and failure evolution were examined through quantitative microscopy to discern the mechanisms of failure and to quantitatively evaluate the local strain evolution. Fractographic observations were used to identify the onset and evolution of damage processes during the deformation and failure of nodular cast iron. These tests and observations reveal that void growth and coalescence occurred only within a narrow localized band, whose size is comparable with the size of the graphite nodules; no statistically significant changes in the porosity were observed outside this zone.
AB - Ductile failure in nodular cast iron is explored through uniaxial tension and notched tension experiments. Specimens obtained through tests interrupted at various stages of deformation and failure evolution were examined through quantitative microscopy to discern the mechanisms of failure and to quantitatively evaluate the local strain evolution. Fractographic observations were used to identify the onset and evolution of damage processes during the deformation and failure of nodular cast iron. These tests and observations reveal that void growth and coalescence occurred only within a narrow localized band, whose size is comparable with the size of the graphite nodules; no statistically significant changes in the porosity were observed outside this zone.
KW - Damage nucleation
KW - Failure mechanism
KW - Porosity
UR - http://www.scopus.com/inward/record.url?scp=84858212448&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858212448&partnerID=8YFLogxK
U2 - 10.1016/j.actamat.2011.12.037
DO - 10.1016/j.actamat.2011.12.037
M3 - Article
AN - SCOPUS:84858212448
VL - 60
SP - 2359
EP - 2368
JO - Acta Materialia
JF - Acta Materialia
SN - 1359-6454
IS - 5
ER -