ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Aqueous corrosion behaviors of Fe3Al-based iron aluminides were investigated. From theresult of cyclic anodic polarization tests conducted in 3.5 wt.% NaCl solution at 25, 48, 72 and95°C, as the temperature increased, the resistance to pitting corrosion decreased significantly,especially over the range of 25~48°C. From the result of crevice corrosion tests, no crevicecorrosion occurred on FAL-Mo in the lower chloride-containing solution (200 ppm Cl-), however,FAL-Mo did not perform as well as the 304L SS in the higher chloride-containing solution (3.5wt.% NaCl). From the result of anodic polarization tests performed in sulfur-compound solutions,additions of Cr and Mo to the Fe3Al-based iron aluminides tend to improve the aqueous corrosionresistance. Aqueous corrosion behaviors with different Al content evaluated by cyclic anodicpolarization test in the chloride-containing solution exhibited the more stable passive behavior andthe higher pitting resistance as Al contents increased
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.23.pdf
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