Precipitation related anomalies in kinetics of phosphorus grain boundary segregation in low alloy steels

J. Janovec; A. Výrostková; P. Ševc; J. S. Robinson; M. Svoboda; J. Kresťanková; H. J. Grabke

doi:10.1016/S1359-6454(03)00223-4

Precipitation related anomalies in kinetics of phosphorus grain boundary segregation in low alloy steels

J. Janovec, A. Výrostková, P. Ševc, J. S. Robinson, M. Svoboda, J. Kresťanková, H. J. Grabke

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

It has been shown that particles of M₆C in Cr-Mo-V low alloy steels can influence phosphorus grain boundary segregation in a similar manner to Laves phase particles in 12CrMoV steel. The influence of these particles arises from their ability to dissolve non- metallic elements such as phosphorus and silicon. As phosphorus is progressively segregated to the grain boundaries during prolonged ageing, the precipitation of M₆C particles leads to an anomalous decrease in the phosphorus grain boundary concentration as the ageing time is extended. This phenomenon originally observed for the Laves phase in long-term aged 12CrMoV steel at temperatures of 753, 773, and 803 K has now been observed for M₆C carbide in a 2.5Cr-0.4Mo-0.25V low alloy steel aged at 853 K.

Original language	English
Pages (from-to)	4025-4032
Number of pages	8
Journal	Acta Materialia
Volume	51
Issue number	14
DOIs	https://doi.org/10.1016/S1359-6454(03)00223-4
Publication status	Published - 15 Aug 2003

Keywords

Auger electron spectroscopy
Interface segregation
Phase transformations
Steels
Transmission electron microscopy

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10.1016/S1359-6454(03)00223-4

Cite this

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title = "Precipitation related anomalies in kinetics of phosphorus grain boundary segregation in low alloy steels",

abstract = "It has been shown that particles of M6C in Cr-Mo-V low alloy steels can influence phosphorus grain boundary segregation in a similar manner to Laves phase particles in 12CrMoV steel. The influence of these particles arises from their ability to dissolve non- metallic elements such as phosphorus and silicon. As phosphorus is progressively segregated to the grain boundaries during prolonged ageing, the precipitation of M6C particles leads to an anomalous decrease in the phosphorus grain boundary concentration as the ageing time is extended. This phenomenon originally observed for the Laves phase in long-term aged 12CrMoV steel at temperatures of 753, 773, and 803 K has now been observed for M6C carbide in a 2.5Cr-0.4Mo-0.25V low alloy steel aged at 853 K.",

keywords = "Auger electron spectroscopy, Interface segregation, Phase transformations, Steels, Transmission electron microscopy",

author = "J. Janovec and A. V{\'y}rostkov{\'a} and P. {\v S}evc and Robinson, {J. S.} and M. Svoboda and J. Kres{\v t}ankov{\'a} and Grabke, {H. J.}",

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TY - JOUR

T1 - Precipitation related anomalies in kinetics of phosphorus grain boundary segregation in low alloy steels

AU - Janovec, J.

AU - Výrostková, A.

AU - Ševc, P.

AU - Robinson, J. S.

AU - Svoboda, M.

AU - Kresťanková, J.

AU - Grabke, H. J.

PY - 2003/8/15

Y1 - 2003/8/15

N2 - It has been shown that particles of M6C in Cr-Mo-V low alloy steels can influence phosphorus grain boundary segregation in a similar manner to Laves phase particles in 12CrMoV steel. The influence of these particles arises from their ability to dissolve non- metallic elements such as phosphorus and silicon. As phosphorus is progressively segregated to the grain boundaries during prolonged ageing, the precipitation of M6C particles leads to an anomalous decrease in the phosphorus grain boundary concentration as the ageing time is extended. This phenomenon originally observed for the Laves phase in long-term aged 12CrMoV steel at temperatures of 753, 773, and 803 K has now been observed for M6C carbide in a 2.5Cr-0.4Mo-0.25V low alloy steel aged at 853 K.

AB - It has been shown that particles of M6C in Cr-Mo-V low alloy steels can influence phosphorus grain boundary segregation in a similar manner to Laves phase particles in 12CrMoV steel. The influence of these particles arises from their ability to dissolve non- metallic elements such as phosphorus and silicon. As phosphorus is progressively segregated to the grain boundaries during prolonged ageing, the precipitation of M6C particles leads to an anomalous decrease in the phosphorus grain boundary concentration as the ageing time is extended. This phenomenon originally observed for the Laves phase in long-term aged 12CrMoV steel at temperatures of 753, 773, and 803 K has now been observed for M6C carbide in a 2.5Cr-0.4Mo-0.25V low alloy steel aged at 853 K.

KW - Auger electron spectroscopy

KW - Interface segregation

KW - Phase transformations

KW - Steels

KW - Transmission electron microscopy

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U2 - 10.1016/S1359-6454(03)00223-4

DO - 10.1016/S1359-6454(03)00223-4

M3 - Article

AN - SCOPUS:0042672548

SN - 1359-6454

VL - 51

SP - 4025

EP - 4032

JO - Acta Materialia

JF - Acta Materialia

IS - 14

ER -

Precipitation related anomalies in kinetics of phosphorus grain boundary segregation in low alloy steels

Abstract

Keywords

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