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- W4313904422 abstract "Duplex stainless steels are used to replace austenitic steels in industrial applications, especially in the chemical industry where corrosion resistance in chloride-containing media is an important requirement. According to literature, niobium has a great influence on the transformation of the phases of these steels (ferrite, austenite and sigma). Given the interest in evaluating this property in terms of wear resistance and corrosion of the material, the aim of this study was to evaluate the effect of niobium on the formation in austenitic-ferritic stainless steel SEW 410 Nr 1.4517 after heat treatment at 850ºC for 15, 30 and 60 minutes. The niobium contents studied were 0.2; 0.5 and 1.5 wt%. Measurements of microhardness, electrochemical tests in saline solution containing 3.5% sodium chloride and wear resistance were carried out. The results show that an increase in niobium content and sigma phase leads to an increase in hardness and wear resistance, associated with a decrease in corrosion potential. Therefore, the use of niobium in austeno-ferritic stainless steel is recommended when wear resistance is an important factor to be considered." @default.
- W4313904422 created "2023-01-10" @default.
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- W4313904422 date "2022-01-01" @default.
- W4313904422 modified "2023-10-01" @default.
- W4313904422 title "Laves phase precipitation and sigma phase transformation in a duplex stainless steel microalloyed with niobium." @default.
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- W4313904422 doi "https://doi.org/10.1590/s1517-707620220002.1300" @default.
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