Austeno-ferritic (duplex) stainless steels are prone to age hardening and to embrittle over a wide temperature range depending on their chemical composition and, obviously, on the heat treatment conditions. This is mainly due to precipitation phenomena that occur inside ferritic grain and at ferrite-austenite grain boundaries with a kinetic that is influenced by the steel chemical composition and by the temperature. This work aims to offer a complete view of the influence of the chemical composition on the DSSs fatigue crack propagation, considering different ageing temperatures and different loading conditions.
CharlesJ., Duplex stainless steels - A review after DSS ’07 held in Grado, Steel Research International79(6) (2008), 455–465.
3.
J.Charles, Duplex families and applications: a review. Part 1: From Duplex Pioneers up to 1991, Stainless Steel World (July/August) (2015), 1–5.
4.
GuttmannM., Intermediate temperature aging of duplex stainless steels. A review, in: Proc. Conf. Duplex Stainless Steels, ’91, Les Editions de Physique, Les Ulis Cedex, France, vol. 1, 1991, pp. 79–92.
5.
IacovielloF.CasariF. and GialanellaS., Effect of “475 °C embrittlement” on duplex stainless steels localised corrosion resistance, Corrosion Science47 (2005), 909–922.
6.
Di CoccoV.IacovielloF. and IschiaG., Duplex stainless steels “475 °C embrittlement”: Influence of the chemical composition on the fatigue crack propagation, Procedia Structural Integrity3 (2017), 299–307.
7.
JosefssonB.NilssonJ.-O. and WilsonA., Phase transformations in duplex stainless steels and the relation between continuous cooling and isothermal heat treatment, in: Proc. Conf. Duplex Stainless Steels, ’91, Les Editions de Physique, Les Ulis Cedex, France, vol. 1, 1991, pp. 67–78.
8.
BadjiR.BouadallahM.BacroixB.KahlounC.BettaharK. and KherroubaN., Effect of solution treatment temperature on the precipitation kinetic of 𝜎-phase in 2205 duplex stainless steel welds, Materials Science and Engineering A496 (2008), 447–454.
9.
EscribaD.M.Materna-MorrisE.PautR.L. and PadilhaA.F., Chi-phase precipitazion in a duplex stainelss steel, Materials Characterization60 (2009), 1214–1219.
10.
TanH.JiangY.DengB.SunT.XuJ. and LiJ., Effect of annealing temperature on the pitting corrosion resistance of superduplex stainelss steel UNS S32750, Materials Characterization60 (2009), 1049–1054.
11.
TehovnikF.ArzensekB.ArhB.SkobirD.PirnarB. and ZuzekB., Microstructure evolution in SAF 2507 superduplex stainless steel, Materiali in Tehnologije/Materials and Technology45 (2011), 339–345.
12.
CharlesJ., Super Duplex Stainless Steels-Structure and Properties, in: Proc. Conf. Duplex Stainless Steels, ’91, Les Editions de Physique, Les Ulis Cedex, France1991, pp. 3–48.
ASTM Standard test Method for Measurements of fatigue crack growth rates (E647 - 15e1), Annual Book of ASTM Standards (2015), 03.01, American Society for Testing and Materials.
