TMS Logo

Metallurgical Principles and Practice of Engineering (PE) Study Guide: Question #29

It Is the Policy of The Minerals, Metals & Materials Society (TMS) to Encourage the Professional Registration of Metallurgical Engineers.

First stage turbine blades operate at very high temperature often reaching 90% of the melting point of the alloy. These blades are typically cast as single crystal castings in nickel base superalloys to minimize creep. Which of the following conditions is more conducive to the production of single crystal castings:

(A)
High thermal gradient and fast solidification rate
(B)
Low thermal gradient and fast solidification rate
(C)
High thermal gradient and slow solidification rate
(D)
Low thermal gradient and slow solidification rate


The information on this page is maintained by the Nellie Luther (natale@tms.org).

Search PE Study Guide TMS Education Page About TMS TMS OnLine