U. V. Gururaja, M. N. Rao, Mishra Dhatu Nigam Limited (MIDHANI), Hyderabad, India
The present ever increasing designer product performance demands shall be the driving force for continuous improvements in the product manufacturing techniques. In spite of over four decades of research on workhorse alloy 6-4, it is often quite difficult to fully understand the role of microstructure and alloy chemistry on mechanical properties of Ti-64.
In the current study, a number of production heats were analysed for variation in Fracture toughness values, keeping constant processing parameters. The paper brings out the Fracture toughness prediction band in the form of NAF (Net Alpha Formers) and NBF (Net Beta Formers) for a given chemistry and process route. The observed effect of primary alpha with respect to NAF and NBF on Fracture toughness values will also be presented.
Summary: The present ever increasing designer product performance demands shall be the driving force for continuous improvements in the product manufacturing techniques. In spite of over four decades of research on workhorse alloy 6-4, it is often quite difficult to fully understand the role of microstructure and alloy chemistry on mechanical properties of Ti-64.
In the current study, a number of production heats were analysed for variation in Fracture toughness values, keeping constant processing parameters. The paper brings out the Fracture toughness prediction band in the form of NAF (Net Alpha Formers) and NBF (Net Beta Formers) for a given chemistry and process route. The observed effect of primary alpha with respect to NAF and NBF on Fracture toughness values will also be presented.
