Home FOR AUTHORS Kovove Materialy-Metallic Materials 2011 Metallic Materials Vol. 49 (2011), no. 5, pp.347-354

Journal info

Select Journal







Webshop Cart

Your Cart is currently empty.

Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Metallic Materials Vol. 49 (2011), no. 5, pp.347-354

Title: Cyclic plasticity, cyclic creep and fatigue life of duplex stainless steel in cyclic loading with positive mean stress
Author: J. POLAK, M. PETRENEC, J. MAN

Abstract: Austenitic-ferritic duplex stainless steel was cycled with three constant stress amplitudes and different mean stresses and cyclic stress-strain response and fatigue life were measured. Fatigue hardening/softening curves and cyclic creep curves were recorded. Saturated plastic strain amplitude was plotted vs. stress amplitude to obtain cyclic stress-strain curves for different mean stresses. The dependence of the cyclic stress-strain curve on the mean stress was established. Cyclic creep rate decreases progressively during the fatigue life leading to saturation of the mean stress. Fatigue life decreases with the mean stress and different representation of the fatigue life curves were presented and discussed in terms of crack initiation and growth.

Keywords: cyclic plasticity, cyclic creep, mean stress, fatigue life, duplex steel
Year: 2011, Volume: 49, Issue: 5 Page From: 347, Page To: 354
doi:10.4149/km_2011_5_347


download file



© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.