Year-end Sale % OFF 
Abstract
Creep behavior of HP40Nb micro-alloyed steel was examined at temperatures ranging from 923K to 1323K and stress levels in the range 47MPa to 120MPa. The effect of higher stress or temperature reduced primary and secondary creep region. The paper compared two different forms of constitutive models: power law approach and Dorn approach to predict the creep behavior of the investigated steel. Experimental data was used to determine constitutive parameters. The results revealed that minimum creep rate depends on applied stress and test temperature. Stress exponent and activation energy for creep of power law expression decreased non-linearly with the increase in temperature and stress, respectively. The minimum creep rate data calculated using Dorn approach shows good agreement with the experimental data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
