Conveners
Rolling, Forging & Hot Deformation II
- LUIGI CHINAGLIA (FOMAS S.p.a.)
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Dr Edgar Ivan Saldana-Garza (FRISA)13/10/2026, 16:10Oral Presentation
Ni-Fe superalloys are used for the fabrication of forged components for turbine applications with a maximum service temperature of around 600°C (1100°F) due to their excellent properties retention at elevated temperatures such as strength, corrosion, creep (time-dependent deformation), stress-rupture (time to fracture) and thermal stability. However, the trade-off from a manufacturing...
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Carlo Mapelli (Dipartimento di Meccanica - Politecnico di Milano)13/10/2026, 16:30Oral presentation (paper for journal’s special issue)
The integrity of large forged components is strongly influenced by macrosegregation phenomena inherited from ingot solidification. In this work, the failure analysis of a large forged turbine shaft (built by 1.6311 steel) is presented to investigate the relationship between manganese segregation, hydrogen-assisted cracking and MnS inclusion formation.
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Ultrasonic inspections revealed an...