Modern turbine blades are mostly made out of nickel, not steel. They're cast in such a way that they form a single crystal structure [1]. This makes 3d printing

Modern turbine blades are mostly made out of nickel, not steel. They're cast in such a way that they form a single crystal structure [1]. This makes 3d printing a no-go. Also, turbine blades are moving to ceramic matrix composite construction [2]. 1. https://www.americanscientist.org/article/each-blade-a-single-crystal https://www.americanscientist.org/article/each-blade-a-singl... 2. https://en.wikipedia.org/wiki/Ceramic_matrix_composite https://en.wikipedia.org/wiki/Ceramic_matrix_composite