The interaction of recrystallizing interfaces with intragranular precipitate dispersions in a nickel-base superalloy

The ways in which a recrystallizing interface can interact with a dispersion of gamma ' precipitates in a commercial powder-produced Ni-base superalloy (Ni -- 17Co -- 15Cr -- 5Mo -- 4Al -- 3.5Ti) are studied. It is shown that two major phenomena occur. First, rapid coarsening of the gamma '...

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Bibliographic Details
Published in:Journal of materials science 1981-06, Vol.16 (6), p.1471-1476
Main Authors: Bee, J V, Jones, A R, Howell, P R
Format: Article
Language:English
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Summary:The ways in which a recrystallizing interface can interact with a dispersion of gamma ' precipitates in a commercial powder-produced Ni-base superalloy (Ni -- 17Co -- 15Cr -- 5Mo -- 4Al -- 3.5Ti) are studied. It is shown that two major phenomena occur. First, rapid coarsening of the gamma ' at the interface can lead to the formation of a low number density of large precipitates. Second, complete dissolution of the precipitate can occur with subsequent reprecipitation at the interface in a manner which is similar to that of a discontinuous/cellular reaction.10 refs.--AA
ISSN:0022-2461
1573-4803
DOI:10.1007/BF02396865