[PDF] Top 20 Corrosion Behavior of Duplex and Lean Duplex Stainless Steels in Pulp Mill

... boundaries in austenite and ferrite in DSS, electrolytic etching was used with 60% HNO 3 solution at an etching potential of ...rolled steels exhibited finer grains than the hot rolled ... See full document

... Duplex stainless steels (DSSs) are gaining extensively increased applications as structural materials in various industrial sectors, such as offshore construction, chemical, petrochemical, ... See full document

... studied in the present work were S32304 and S32205 ...processed and supplied by Aperam South America with a thickness of ...4.08 and 4.26 mm respectively in the condition ... See full document

... Abstract: Duplex stainless steels (DSS’s) have been placed as an excellent alternative for applications where high corrosion resistance and high mechanical strength are ...the ... See full document

... Duplex stainless steels have become more attractive than single-phase austenitic and ferritic grades in many industrial applications owing to their high strength and ... See full document

... grade of duplex stainless steels is the so-called ‘‘2205’’ (UNS S31803), which is used in the oil and gas industry in flexible pipes for oil extraction and ... See full document

... joints of UNS S32304 lean duplex stainless steel (LDSS) has been studied in acidiied glycerin, a byproduct of biodiesel plants, using cyclic polarization ...employed in ... See full document

... Lean duplex UNS S32304 is an austenitic ferritic stainless steel with pitting resistance equivalent number around ...Its corrosion resistance is similar to AISI 316L steel, but with the ... See full document

... Duplex stainless steels are high strength and corrosion resistant steels extensively used in the petrochemical and chemical ...periods of time provokes ... See full document

... Duplex Stainless Steel are an alloy based on Fe-Cr-Ni system characterized by biphasic structure of austenite-ferrite obtained through different thermomechanical cycles and they show good ... See full document

... effects of the addition of nickel on the microstructure and the mechanical properties of duplex and super duplex welded ...improvements in the phase balance ... See full document

... S32304 Lean Duplex Stainless Steel (LDSS) thick plates were welded by different processes commonly employed in the manufacture of equipment and piping: shielded metal arc welding ... See full document

... (XRD) and Rietveld Reinement were performed to identify and quantify the ferrite and austenite phase of cold and hot rolled duplex stainless steels (UNS S31803) ... See full document

... group of patients, a large number of patients was excluded for incomplete evaluation based on the predefined criteria or a delay in the complementary method ...iod of time after symptoms ... See full document

... (anodic and cathodic Tafel slopes) and hence corrosion ...range and possibility of pitting or crevice ...presented in Table 4. All the potentials referred in paper are ... See full document

... the steels were evaluated by microhardness measurements on the samples, before and after heat ...averages of five measurements were obtained with load of 100 g using a Vickers hardness ... See full document

... detect and quantify the sensitization of stainless steels (Cihal et ...2001). In this work the tests for lean duplex and duplex steels were carried ... See full document

... geometry of the bead on plate deposit is illustrated in Fig. 1 and the reference axes marked represent the sample frame of reference, which will be used later in the paper in ... See full document

... treated and untreated specimens in order to comparatively evaluate the electrochemical response of the ...means of potentiodynamic polarization ...electrode and a platinum auxiliary ... See full document

... increase of the demand for DSS in industrial applications made mandatory the control of the manufacturing processes and the necessity to know accurately the quantities of the phases ... See full document