Publication detail

Effect of elevated temperatures on the shape of hysteresis loop of nickel based superalloy

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"
}