Thermodynamic Analysis and Observation of Inclusions in 2205 Duplex Stainless Steel with Rare Earth Metals

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Abstract:

The effect of rare earth metals on modifying inclusions of 2205 duplex stainless steel was studied by metallographic examination, SEM and electron spectroscopy. Thermodynamic calculation was used to analyze the formation of RE inclusions in 2205 duplex stainless steel. According to the composition of 2205 duplex stainless steel liquid and thermodynamic data, it may calculate and predict the kinds of RE inclusions. And the result shows that aluminosilicate complex inclusion and sulfide inclusion can be entirely replaced by RE2O2S and RES that are spherical.

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Periodical:

Advanced Materials Research (Volumes 512-515)

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1833-1839

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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