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A new modelling approach to describe the creep of single crystal superalloys using a precipitate chain is presented. In the model, each precipitate site is characterized by a barrier and the dislocation pile up arrested by it. The relevant mechanisms such as dislocation generation, bowing and precipitate shearing have been incorporated into the dynamics. The simulation results are compared with creep curves for the superalloy SRR99. Further enhancements to the model are outlined.

Additional information

Authors: ARRELL D J, JRC Petten (NL);VALLES J L, JRC Petten (NL)
Bibliographic Reference: Article: Materials Science and Engineering (1995)
Record Number: 199610134 / Last updated on: 1996-03-01
Original language: en
Available languages: en
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