Evaluation on the High-Temperature Oxidation Behavior of HP Steam Turbine Rotor Materials

Li Bin Niu; Takuya Shibata

doi:10.4028/www.scientific.net/AMR.750-752.420

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Evaluation on the High-Temperature Oxidation...

Evaluation on the High-Temperature Oxidation Behavior of HP Steam Turbine Rotor Materials

Abstract:

High-temperature oxidation behaviors of super-clean 9CrMoV steel and 1CrMoV steel for HP steam turbine rotor materials were investigated. The super-clean 9CrMoV steel showed a superior high-temperature oxidation resistance with very small oxidation rates even though at 630°C, because the oxidation was restrained by the Cr-oxides formed near the base metal. On the other hand, the oxide scales formed on the 1CrMoV steel were composed of Fe-oxides, and the oxidation rate increased remarkably at the temperatures above 610°C.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

420-425

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.420

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Online since:

August 2013

Authors:

Li Bin Niu, Takuya Shibata

Keywords:

1CrMoV Steel, High-Pressure (HP) Steam Turbine Rotor, High-Temperature Oxidation, Oxide Scale, Super-Clean 9CrMoV Steel

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