Defects as a root cause of fatigue failure of metallic components. III: Cavities, dents, corrosion pits, scratches

U Zerbst, M Madia, C Klinger, D Bettge… - Engineering Failure …, 2019 - Elsevier
This third part of the review on defects as root cause of fatigue failure addresses cavities
(pores, micro-shrinkages, unmelted regions), defective microstructures and microcracks as …

Mechanism Analysis for the Enhancement of Low-Temperature Impact Toughness of Nodular Cast Iron by Heat Treatment

H Zhuang, J Shen, M Yu, X An, J Hu - Materials, 2024 - mdpi.com
The low-temperature impact toughness of nodular cast iron can be significantly enhanced by
heat treatment, and thus meet the severe service requirements in the fields of high-speed …

Influence of V content on microstructure and mechanical properties of gray cast iron for super-large cylinder liner

Y Li, Q Wang, R Chen, X Wang, Y Xia, G Zhou… - International Journal of …, 2023 - Springer
The cylinder liner is regarded as the “ventricle” of the heart of the engine, and its
performance plays a decisive role in the overall performance of the engine. V was added to …

Development of a hierarchical model for voids clusters suitable for cast iron degenerated graphite

R Rizzoni, P Livieri, R Tovo, M Cova - Theoretical and Applied Fracture …, 2020 - Elsevier
We develop a hierarchical model for the description of the stress state inside a cluster of
degenerated graphite in spheroidal cast iron. The model is based on the following …

A two-scale model of degenerated graphite in cast iron

R Rizzoni, P Livieri, R Tovo - Engineering Fracture Mechanics, 2022 - Elsevier
A two-scale model for clusters of degenerated graphite in gray cast iron is presented. The
novelty of the model is that, at the mesoscale, a single cluster is described as a spheroidal …

Multiscale stress analysis of porosity clusters as mechanical models of degenerated graphite defects in cast iron

R Rizzoni, P Livieri, R Tovo - IOP Conference Series: Materials …, 2022 - iopscience.iop.org
We extend previous results for the stress analysis of a cluster of degenerated graphite in
spheroidal cast iron, modelled as a multiscale three-dimensional composite. At the …

Multiscale three-dimensional stress analysis of voids clusters for the modelling of degenerated graphite in cast iron

R Rizzoni, P Livieri, R Tovo - IOP Conference Series: Materials …, 2021 - iopscience.iop.org
We propose a multiscale three-dimensional model for the stress analysis of a cluster of
degenerated graphite in spheroidal cast iron. The model allows to study the effect of …

A simplified multiscale model of degenerate graphite clusters in grey cast iron

M Cova, P Livieri, R Rizzoni, R Tovo - Procedia Structural Integrity, 2019 - Elsevier
To take into account the weakening effect of defects clusters in real microstructures, we
propose a multiscale model in a twodimensional setting. At a small scale, single defects are …

[PDF][PDF] CONTROLLO QUALITÀ DI COMPONENTI OTTENUTI PER AM ATTRAVERSO CT SCAN

S Romanoa, S Berettab - researchgate.net
I graduali e costanti miglioramenti delle tecnologie additive (AM) hanno reso possibile la
produzione di componenti sempre più leggeri e complessi, causando una rapidissima …