Hot corrosion and oxidation resistance of low Cr and high Re containing Ni based superalloys

摘要

There is a general trend of lowering Cr content but increasing Re content in the evolution of Ni based single crystal superalloys. In this study, an attempt was made to see the prospect of superalloys containing the lower Cr and higher Re contents than the 3rd-generation superalloys. A Cr-free superalloy was also examined in this respect.