CREEP RUPTURE LIFE OF PRE-STRAINED SUPERALLOY N07080

  • Assistant Professor, University Of Zenica - Institute Kemal Kapetanovic in Zenica.
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The creep of the pre-strained superalloy N07080 is described in this work. The pre-strain was achieved by warm rolling at 1050 oC.-The warm rolling was performed due to additional strengthening, i.e increasing of the superalloy hardness.-The pre-strain drastically reduces the creep rupture life of the superalloy compared to the creep rupture life of the standard heat treated superalloy.-The drastic reductionof the creep rupture life is result of rapid creep cavity nucleation on stress concentration sites along primary grain boundaries of the pre-strained superalloy.-Recrystallization eliminates potential sites for rapid cavity nucleation and prolongates the creep rupture life.

[Omer Beganovic (2021); CREEP RUPTURE LIFE OF PRE-STRAINED SUPERALLOY N07080 Int. J. of Adv. Res. 9 (Oct). 1167-1176] (ISSN 2320-5407). www.journalijar.com

Omer Beganovi?
UNIVERSITY OF ZENICA
Bosnia and Herzegovina

DOI:

Article DOI: 10.21474/IJAR01/13665      
DOI URL: https://dx.doi.org/10.21474/IJAR01/13665

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