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Influence of Microshrinkage Cavities on the Plastic Deformation and Fracture Under Tensile Loading in Ferritic Ductile Iron
- Source :
- International Journal of Metalcasting. 15:1084-1090
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- This work focuses on the study of the influence of microshrinkage cavities on the plastic deformation and fracture of ferritic ductile iron. Cast samples were especially developed to include dispersed microshrinkage. Tensile testing and digital image correlation analysis are employed to assess the influence of dispersed microshrinkage cavities as preferential sites for crack initiation and propagation under uniaxial static load. The results show that small microshrinkage cavities of up to 3.5 times the area of graphite nodules are not linked to the initiation and propagation of cracks in ductile iron. The methodology developed in this work becomes useful to evaluate the influence of size, distribution, and morphology of different microshrinkage defects on the damage evolution during tensile loading.
- Subjects :
- Digital image correlation
Materials science
Structural material
020502 materials
Metals and Alloys
02 engineering and technology
engineering.material
Industrial and Manufacturing Engineering
020501 mining & metallurgy
0205 materials engineering
Mechanics of Materials
Ductile iron
Ultimate tensile strength
Crack initiation
Materials Chemistry
Fracture (geology)
engineering
Graphite
Composite material
Tensile testing
Subjects
Details
- ISSN :
- 21633193 and 19395981
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- International Journal of Metalcasting
- Accession number :
- edsair.doi...........355667ced235ae3a21633a95e68cbd8f