Clean/superclean steel rotors for electric utility applications

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:549962

Viswanathan, R ^[1]

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1. Electric Power Research Inst., Palo Alto, CA (United States)

Improved cleanliness is perhaps the only approach that results in simultaneous improvement in strength and ductility at elevated temperatures as well as toughness at low temperatures of steels. In addition, superclean steels in which manganese and silicon have also been reduced provide greater resistance to stress corrosion cracking than conventional steels. Major projects are underway worldwide to promote the use of clean/superclean steel rotor and disk forgings, both for low temperature and for high temperature applications in steam and combustion turbines. An international workshop sponsored by EPRI was held in 1995 in London, at which turbine manufacturers and steelmakers discussed ongoing activities with respect to clean steels. This paper will review EPRI research in th area and provide an overview of recent developments.

• OSTI ID: 549962
• Report Number(s): CONF-961006--; ISBN 0-7918-1796-2
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
36 MATERIALS SCIENCE
ALUMINIUM
ANTIMONY
ARSENIC
DUCTILE-BRITTLE TRANSITIONS
DUCTILITY
FRACTURE PROPERTIES
IMPURITIES
MANGANESE
OXYGEN
PHOSPHORUS
POWER PLANTS
ROTORS
SILICON
STEELS
SULFUR
TENSILE PROPERTIES
TIN
TURBINES