Probing the structure and mechanical properties of the graphite nodules in ductile cast irons via nano-indentation

Abstract

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Microstructure and residual elastic strain at graphite nodules in ductile cast iron analyzed by synchrotron X-ray microdiffraction

“…It is evident that when the X-ray intersects at different angles to the conical sector of the GN, a large strain variation up to 1×10 3 can be seen locally within the range z/RGN =0.1-0.2. This variation is purely due to the local GN conical sector structure, which has been shown to introduce local mechanical anisotropy [38]. At z/RGN >0.2, the variation between different beam paths is minor.…”

Fabrication of graphite/MgO-reinforced poly(vinyl chloride) composites by mechanical activation with enhanced thermal properties

“…Compared to MgO/PVC, the tensile strength of graphite/PVC was reduced, but the bending strength was improved due to its so physical nature and superior ductility. 41 The tensile strength of graphite/MgO/PVC (47.39 MPa) was about 8 MPa higher than that of graphite/PVC, while its bending strength (51.98 MPa) was 2 MPa higher than that of MgO/PVC. This indicated that graphite and MgO had a synergistic effect under the high-energy ball milling in MA and played a key role in improving the mechanical properties of the nal composites.…”

Impact of micro-scale residual stress on in-situ tensile testing of ductile cast iron: Digital volume correlation vs. model with fully resolved microstructure vs. periodic unit cell

“…Due to the complexity of the procedures employed, the details of the preparatory steps are reported in separate publications and are not repeated here. In particular, the mechanical behavior of the graphite particles was investigated via nano-indentation in (Andriollo et al, 2018a) and the constitutive response of the matrix at various temperatures was determined by manufacturing and testing an alloy possessing equivalent metallurgical features in (Andriollo et al, 2018b). Simulation of the manufacturing process of the full-size DCI component, considering DCI as a homogeneous material, was addressed in (Sonne et al, 2017).…”