Direct Assessment of the Creep Strength of DS Cast Turbine blades Using Miniature creep Specimens

摘要

The present paper presents a novel approach which allows a di- rect assessment of the creep strength o thin walled DS turbine blades at temperatures up to 1100 deg. C using a grain morphology sensitive miniature creep specimen test technique. The work builds up on earlier investigations by DeMestral and Co-workers ([I] B. DeMestral et al., Met. And Mat. Transactions A, 27A (1996) pp.