This research group of National Institute for Materials Science, Japan, has developed several Ni-base superalloys with superior elevated temperature properties, including TMS-63 and TMS-75. They have used atom probe field ion microscopy (APFIM) to investigate the atomic structure of the matrix and strengthening phases and semi-empirical numerical methods to predict atomic structure and mechanical properties. They have also applied the cluster variation method to estimate equilibrium phase chemistries, volume fractions, and lattice parameter as a function of composition, temperature and pressure. This web article presents some of the results of this study and provides a list of additional references.

SOURCE: "Design and Development of Ni-Base Single Crystal Superalloy on Atomic Basis ." Ni-base Superalloy Home Page. 2002. National Institute for Materials Science, High Temperature Materials Center.

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