I was told the chill grain is preferred to improve mechanical properties. What about particular application such as statoric parts, used in industrial gass turbine? is it not recommended? What happens if grain size is very fine?
What is the best way to investigate the residual life of X-45 turbine vane? The parts may have been subjected to several repairs. I need to evaluate the general status to decide wheter or not they can be repaired again and employed again.
