On kinetics of phosphorus segregation in Cr-Mo-V low alloy steel

Journal Article · Thu Dec 15 04:00:00 EST 1994 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(94)90462-6· OSTI ID:6891395

Sevc, P; Janovec, J; Katana, V ^[1]

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1. Slovak Academy of Sciences, Kosice (Slovakia). Inst. of Materials Research

The low carbon, low alloy Cr-Mo-V steels with stabilized microstructures are widely used in electric power plants and petroleum industries because of their good serviceability of elevated temperatures. However, the phenomenon of temper embrittlement after thermal exposure at 623 to 873 K was stated. There are time-temperature relationships between the embrittlement of steels and grain boundary impurity segregation. Temperature dependence of embrittlement can be explained by the theory of equilibrium segregation. In practice, the exposure time is usually less than that required for equilibrium segregation. Therefore, in order to understand the stages preceding the equilibrium state, a study of segregation kinetics is important. This paper deals with the segregation kinetics of phosphorus in the 2.6Cr-0.7Mo-0.3V steel at 853 K.

• OSTI ID: 6891395
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 31:12; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
CHROMIUM ALLOYS
COPPER ADDITIONS
COPPER ALLOYS
ELEMENTS
EMBRITTLEMENT
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
LOW ALLOY STEELS
MATERIALS
MATHEMATICAL MODELS
MICROSTRUCTURE
MOLYBDENUM ADDITIONS
MOLYBDENUM ALLOYS
NICKEL ADDITIONS
NICKEL ALLOYS
NONMETALS
PHOSPHORUS
SEGREGATION
STEEL-CR2MOV
STEELS
VAN
VANADIUM ADDITIONS