Paper Title:
Cyclic Plasticity and Cyclic Creep in Austenitic-Ferritic Duplex Steel
  Abstract

Smooth specimens made from austenitic-ferritic duplex steel were subjected to constant stress amplitude loading with positive mean stresses. Hysteresis loops were recorded during the fatigue life and plastic strain amplitude and cyclic creep rate were determined. Fatigue hardening/softening curves, cyclic creep curves and cyclic stress-strain curves for different positive mean stresses were evaluated. Typical dislocation structures developed in both phases of the duplex steel were identified using TEM, compared with the saturated plastic strain amplitude and correlated with the decrease of the cyclic creep rate during cycling and the slope of the cyclic stress-strain curve.

  Info
Periodical
Edited by
Pavel Šandera
Pages
431-434
DOI
10.4028/www.scientific.net/KEM.465.431
Citation
J. Polák, M. Petrenec, J. Man, T. Kruml, "Cyclic Plasticity and Cyclic Creep in Austenitic-Ferritic Duplex Steel", Key Engineering Materials, Vol. 465, pp. 431-434, 2011
Online since
January 2011
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