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متالوژی::
خزش اولیه
Primary creep in austenitic alloys has not been extensively investigated over large ranges of temperature.
Creep mechanism in MAR-M 200 single crystals at 1400F have been reported (Leverant and Kear, 1970), with primary creep strain and rate indicating sensitivity to orientation.
A constant volume fraction causes larger particles to be more ben- eficial in restricting primary creep, as the line tension precludes penetration of the particles.
Development of a substructure during primary creep and after substantial strain hardening helps in raising the steady-state creep in MAR-M 200 at 1400F.
properties because of the formation of during the primary creep.
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