Published September 1978 | Version v1
Journal article Metadata-only

The production heat treatment of 1% CrMoV steam turbine rotors for creep resisting service

Creators

Description

Continuous cooling transformation of 1% CrMoV rotor steel. Relationship between strength and toughness. Effect of ferrite on creep resistance and ductility. Controlled and interrupted quenching, control of hardenability through Mn, Ni and austenitising temperature. Effect of tempering on hardness, microstructure and creep properties. Practical limits for astenitising temperature, quenching procedure and hardness after tempering. Properties of production rotors. (orig.)

Abstract (German)

Umwandlungsverhalten von Chrom-Molybdaen-Vanadin-Staehlen mit 1% Cr fuer Turbinenlaeufer bei kontinuierlicher Abkuehlung. Zusammenhang zwischen Zeitstandfestigkeit und Zaehigkeit. Einfluss von Ferrit auf das Zeitstandverhalten. Kontrollierte und unterbrochene Haertung, Beeinflussung der Haertbarkeit durch Mangan, Nickel und Austenitisierungstemperatur. Einfluss von Anlassbehandlung auf Haerte, Gefuege und Zeitstandeigenschaften. Grenzen fuer Austenitisierungstemperatur, Haertevorgang und Anlasshaerte. Eigenschaften betriebsmaessig hergestellter Laeufer. (orig.)

Additional details

Additional titles

Original title (German)
Die betriebliche Waermebehandlung von Dampfturbinenlaeufern aus Chrom-Molybdaen-Vanadin-Staehlen mit 1% Cr fuer den Einsatz bei Zeitstandbeanspruchung

Publishing Information

Journal Title
Stahl Eisen
Journal Volume
98
Journal Issue
18
Series
Stahl Eisen.
Journal Page Range
941-949

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
10423046
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Descriptors DEI
AUSTENITE; BAINITE; CHROMIUM-MOLYBDENUM STEELS; COOLING; CREEP; CRYSTAL-PHASE TRANSFORMATIONS; DUCTILITY; FERRITE; FRACTURES; HARDENING; HARDNESS; HEAT TREATMENTS; MANGANESE ADDITIONS; MARTENSITE; MICROSTRUCTURE; NICKEL ADDITIONS; QUENCHING; ROTORS; RUPTURES; STEAM TURBINES; STRAINS; STRESSES; TEMPERATURE DEPENDENCE; TEMPERING; TIME DEPENDENCE; TRANSITION TEMPERATURE; VANADIUM ADDITIONS; VELOCITY
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CRYSTAL STRUCTURE; FAILURES; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; MOLYBDENUM ALLOYS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; STEELS; TENSILE PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TURBINES