Modeling tools are developed to account, as accurately as potential, of the physical
phenomena operative throughout the deformation method. The models are primarily supported the
description of microstructural and science evolutions on one hand and on
mechanical or thermo-mechanical strengthening laws on the opposite hand. If the mechanical and
thermal algorithms are used for long, the enforced science laws are a lot of
difficult to ascertain and should be fitted to an outsized variety of experimental knowledge, describing a
wide range of method conditions. Such models are intrinsic to the corresponding alloys and
are accessible at Snecma Moteurs for all the solid alloys used for discs. They are
implemented in pc package as post-processing codes. Hence, the prognosticative models
can be last any reasonably work-pieces throughout the entire method.
The mechanical properties are obtained by more models supported experimental relationships
with science characteristics. within the following, we are going to describe the applied technique to
correlate the LCF behavior of the 718 superalloy to the therrno-mechanical deformation it
undergoes in commission and to its microstructura~ characteristics.