Low transit thermal stress turbine engine components

摘要

A turbine vane includes a platform; and at least one airfoil (30) mounted to the platform and having a trailing edge (32) and a leading edge (34), wherein the vane is composed of a functionally graded material having a first material and a second material, wherein the trailing edge (32) includes a greater amount of the first material than the second material, and the leading edge (34) includes a greater amount of the second material than the first material.