The effect of silicon microsegregation on the mechanical properties of high silicon alloyed ductile cast iron under monotonous loading.
Heliyon
; 10(1): e23904, 2024 Jan 15.
Article
in En
| MEDLINE
| ID: mdl-38226280
ABSTRACT
High silicon alloyed ductile cast iron (Si-DCI) can show unpredictable brittle fracture which currently prevents a widespread application of this material. The brittleness is associated with local superstructure formation due to silicon segregation which influences the deformation mechanisms of the matrix phase. In order to understand the effect of silicon segregation on the mechanical properties of Si-DCI under monotonous loading, three alloys with different cooling conditions were examined and micromechanical simulations were carried out by using the phenomenological crystal plasticity model. Here, the segregation profiles were determined through multi phase field simulations. The influence of segregation on the mechanical properties was only evident from the model but not from the experimental results. The simulated results show that the toughness of Si-DCI decreases with stronger silicon segregation when ductile damage is considered.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Qualitative_research
Language:
En
Journal:
Heliyon
Year:
2024
Document type:
Article
Affiliation country:
Alemania
Country of publication:
Reino Unido