Fatigue and Fracture Properties of Duplex Stainless Steels

Johansson, R.

doi:10.31399/asm.hb.v19.a0002405

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…Ultimate tensile strength and YS are directly related to the fatigue strength; 6,31 thus, the higher values of these parameters obtained for D-SS lead to infer that this material has greater fatigue resistance than fig745-SS and, consequently, lower risk to suffer mechanical failure.…”

Section: Resultsmentioning

confidence: 99%

Mechanical, electrochemical and magnetic behaviour of duplex stainless steel for biomedical applications

Gregorutti

Grau

Sives

et al. 2015

Materials Science and Technology

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Mechanical, electrochemical and magnetic properties of duplex stainless steel were analysed to evaluate its use as biomaterial, comparing the results with those obtained for austenitic stainless steel. Yield and ultimate tensile strengths are almost twice in duplex stainless steel, being the values 870 MPa and 564 MPa, respectively. The electrochemical test revealed that this material has lower susceptibility to localised corrosion because of its greater passive range, 1 V from the open circuit potential, while the austenitic stainless steel exhibited a passive region of 0.370 V. Both steels behave as soft magnetic materials, however, duplex stainless steel has higher magnetic saturation and remanence, while austenitic stainless steel is more prone to heating when exposed to a magnetic field.

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Section: Resultsmentioning

confidence: 99%

Mechanical, electrochemical and magnetic behaviour of duplex stainless steel for biomedical applications

Gregorutti

Grau

Sives

et al. 2015

Materials Science and Technology

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“…Duplex stainless steels are defined as a family of stainless steels having two-phase microstructure with approximately equal volume fractions of ferrite (α) and austenite (γ). Nowadays, duplex steels are well established for components and structures in chemical and petrochemical processes, paper production, chemical tankers, desalination plants and even civil engineering and architectural purposes [1][2][3]. Duplex steels are selected because they have demonstrated to offer high static and dynamic strength in medium to severe corrosive environments [4].…”

Section: Introductionmentioning

confidence: 99%

Sliding Wear Behavior of a Duplex Stainless Steel

Mestra

Fargas

Anglada

et al. 2009

KEM

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Duplex stainless steels contain similar amounts of austenite  and ferrite α. This two-phase microstructure leads to an excellent combination of mechanical properties and corrosion resistance. However, there are few works dealing with the wear behaviour of these steels. This paper aims to determine the sliding wear mechanisms of a duplex stainless steel type 2205. In order to do it, three different sliding velocities (0.2, 0.7 and 1.2 m/s) and six sliding distances (500, 1000, 2000, 3000, 4000 and 5000 m) were selected. The results show that wear rate depends on both sliding velocity and sliding distance. The wear mechanisms detected were plowing, microcracking and microcutting (typical mechanisms of fatigue wear). These mechanisms evolve according to sliding velocity and sliding distance, highlighting a transition zone in which wear rate is reduced.

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