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PETRENEC, M. ŠMÍD, M. POLÁK, J. OBRTLÍK, K.
Original Title
Effect of elevated temperatures on the shape of hysteresis loop of nickel based superalloy
Type
conference paper
Language
English
Original Abstract
The hysteresis loops of cast Inconel 738LC superalloy obtained from multiple step tests at 23 and 800 C were analyzed using a generalised statistical theory of the hysteresis loop. The plot of the second derivative yields information on the average effective stress and the probability density function of the critical internal stresses. The probability density function in superalloy has two peaks, at both temperatures, which correspond to the two-phase structure. Cyclic hardening/softening curves and cyclic stress-strain curves were obtained at both temperatures.
Keywords
Hysteresis loop; effective and internal stresses; superalloy
Authors
PETRENEC, M.; ŠMÍD, M.; POLÁK, J.; OBRTLÍK, K.
RIV year
2008
Released
17. 6. 2008
Publisher
St. Petersburg State Polytechnic University
Location
St. Petersburg
ISBN
978-5-7422-1856-2
Book
Assessment of reliability of materials and structures: Problems and solutions
Pages from
278
Pages to
282
Pages count
5
BibTex
@inproceedings{BUT35196, author="Martin {Petrenec} and Miroslav {Šmíd} and Jaroslav {Polák} and Karel {Obrtlík}", title="Effect of elevated temperatures on the shape of hysteresis loop of nickel based superalloy", booktitle="Assessment of reliability of materials and structures: Problems and solutions", year="2008", pages="278--282", publisher="St. Petersburg State Polytechnic University", address="St. Petersburg", isbn="978-5-7422-1856-2" }