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, 15:5002. Rolling, forging and design of hot deformation processesOral 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, 16:1002. Rolling, forging and design of hot deformation processesOral 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...