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Study of Corrosion Resistance in Super-Duplex, Tungsten-Containing Stainless Steel  

Choi, Han-Gul (Dept. of Metallurgical Engineering, Pukyong National University)
Park, Hyung-Gyun (Dept. of Metallurgical Engineering, Pukyong National University)
Jung, Byung-Ho (Dept. of Metallurgical Engineering, Pukyong National University)
Han, Hyun-Sung (Dept. of Industrial Fabrication Korea Polytechnics)
Bae, Dong-Su (Dept. of Advanced Materials Engineering, Dong-Eui University)
Kang, Chang-Yong (Dept. of Metallurgical Engineering, Pukyong National University)
Publication Information
Journal of Ocean Engineering and Technology / v.24, no.5, 2010 , pp. 55-59 More about this Journal
Abstract
The effect of aging on the precipitation of the $\sigma$ phase and corrosion resistance in W-substituted, super-duplex stainless steel was investigated. The volume fraction of the $\sigma$ phase and the current density increased as the aging temperature increased up to $750^{\circ}C$, and, then, they decreased. As aging time increased, the volume fraction of the $\sigma$ phase and the current density also increased. The $\sigma$ phase considerably influenced to corrosion resistance. When Mo was substituted for W in super-duplex stainless steel, the volume fraction of the $\sigma$ phase and the current density both decreased markedly.
Keywords
Super duplex stainless steel; Corrosion resistance; Sigma phase; Aging treatment; W Substituted;
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Times Cited By KSCI : 1  (Citation Analysis)
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