Technological and operational properties of steels for welded turbine rotors

Welded turbine rotors are commonly produced from steels 34KhMA and 32KhM1A. Since the unit power of the rotors has increased from 300 to 1200 MW, these steels no longer satisfy the requirements for rotor materials where their strength and hardenability are connerned. It became necessary to develop n...

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Veröffentlicht in:	Metal science and heat treatment 1998-01, Vol.40 (1-2), p.14-18
Hauptverfasser:	BORISOV, I. A, NIKITIN, Yu. M, SLEZKINA, E. V
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloys Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure Fatigue, embrittlement, and fracture Hardenability Heat treatment High strength steels Materials science Mechanical properties Metallurgy Metals. Metallurgy Physics Rotors Steels Treatment of materials and its effects on microstructure and properties Turbines Weldability
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Beschreibung
Zusammenfassung:	Welded turbine rotors are commonly produced from steels 34KhMA and 32KhM1A. Since the unit power of the rotors has increased from 300 to 1200 MW, these steels no longer satisfy the requirements for rotor materials where their strength and hardenability are connerned. It became necessary to develop new deeply hardening and well weldable high-strength steels. The present paper concerns the results of an all-around analysis of the mechanical properties and weldability of industrially molten metals.[PUBLICATION ABSTRACT]
ISSN:	0026-0673 1573-8973
DOI:	10.1007/BF02468499