Communications - Scientific Letters of the University of Zilina 2004, 6(2):43-48 | DOI: 10.26552/com.C.2004.2.43-48

Correlation of Fracture Surface Topography and Transition Behavior of Nodular Cast Iron

Gianni Nicoletto1, Radomila Konecna2
1 Department of Industrial Engineering, University of Parma, Italy
2 Dept. of Materials Engineering, Zilina University, Slovakia

Dynamic testing methods, especially the Charpy V-notch testing at different temperatures, are commonly used to determine the impact response of metallic materials. However, in nodular cast iron this transition trend is characterized by scatter, which makes it difficult to precisely identify the influence of microstructural features on material response. In this paper the vertical surface roughness parameter RV obtained from fracture profiles is considered on the hypothesis that the surface topography is a sensitive indicator of the energy absorbed by plastic deformation and of the microstructure. Nodular cast irons having a range of microstructures were impact tested and the surface roughness determined. Transition trends of impact toughness and of RV are discussed.

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Published: June 30, 2004  Show citation

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Nicoletto, G., & Konecna, R. (2004). Correlation of Fracture Surface Topography and Transition Behavior of Nodular Cast Iron. Communications - Scientific Letters of the University of Zilina6(2), 43-48. doi: 10.26552/com.C.2004.2.43-48
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References

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