Effect of Graphite Morphology on the Thermomechanical Performance of Compacted Graphite Iron

Compacted graphite iron (CGI) has gained significant attention in automotive industry applications thanks to its superior thermomechanical properties and competitive price. Its main fracture mechanism at the microscale—interfacial damage debonding between inclusions a metallic matrix—can happen under high-temperature service conditions as result of mismatch coefficients thermal expansion two phases CGI. Macroscopic cast components can be initiated by interfacial microscale load. This phenomenon was investigated various composites but still lacks information for CGI, with complex morphology inclusions. research focuses on effect this performance CGI high temperatures. A set three-dimensional finite-element models created, unit cell containing single inclusion embedded cubic domain matrix. Elastoplastic behaviour assumed both numerical simulations. The pure loading, focusing response constituents. results provide deeper understanding correlation mechanisms