Modelling rail steel microstructure and its effect on crack initiation

FJ Franklin; John Garnham; DI Fletcher; Claire Davis; A Kapoor

doi:10.1016/j.wear.2008.03.027

Modelling rail steel microstructure and its effect on crack initiation

FJ Franklin, John Garnham, DI Fletcher, Claire Davis, A Kapoor

Metallurgy and Materials

Research output: Contribution to journal › Article

41 Citations (Scopus)

Abstract

The quality of rail steel has improved greatly in recent years and the material is more resistant to wear, plastic deformation and crack initiation: but track forces have also increased,and cracking of rails is a major concern. Different steel microstructures have different wear and rolling contact fatigue (RCF) behaviours when subject to cyclic, rolling-sliding, compressive contact. In order to capture the differences, it is necessary to model these at a microstructural level. This paper describes the development of microstructural models for incorporation into a wear and crack initiation model. A new mechanism is introduced which distinguishes RCF lives of pearlitic microstructures with different percentage volumes of pio-eutectoid ferrite. (C) 2008 F.J. Franklin. Published by Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1332-1341
Number of pages	10
Journal	Wear
Volume	265
Issue number	9-10
DOIs	https://doi.org/10.1016/j.wear.2008.03.027
Publication status	Published - 1 Jan 2008

Keywords

ratcheting failure
crack initiation
rolling contact fatigue
pearlitic rail steel
computer simulation

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10.1016/j.wear.2008.03.027

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title = "Modelling rail steel microstructure and its effect on crack initiation",

abstract = "The quality of rail steel has improved greatly in recent years and the material is more resistant to wear, plastic deformation and crack initiation: but track forces have also increased,and cracking of rails is a major concern. Different steel microstructures have different wear and rolling contact fatigue (RCF) behaviours when subject to cyclic, rolling-sliding, compressive contact. In order to capture the differences, it is necessary to model these at a microstructural level. This paper describes the development of microstructural models for incorporation into a wear and crack initiation model. A new mechanism is introduced which distinguishes RCF lives of pearlitic microstructures with different percentage volumes of pio-eutectoid ferrite. (C) 2008 F.J. Franklin. Published by Elsevier B.V. All rights reserved.",

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AU - Franklin, FJ

AU - Garnham, John

AU - Fletcher, DI

AU - Davis, Claire

AU - Kapoor, A

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N2 - The quality of rail steel has improved greatly in recent years and the material is more resistant to wear, plastic deformation and crack initiation: but track forces have also increased,and cracking of rails is a major concern. Different steel microstructures have different wear and rolling contact fatigue (RCF) behaviours when subject to cyclic, rolling-sliding, compressive contact. In order to capture the differences, it is necessary to model these at a microstructural level. This paper describes the development of microstructural models for incorporation into a wear and crack initiation model. A new mechanism is introduced which distinguishes RCF lives of pearlitic microstructures with different percentage volumes of pio-eutectoid ferrite. (C) 2008 F.J. Franklin. Published by Elsevier B.V. All rights reserved.

AB - The quality of rail steel has improved greatly in recent years and the material is more resistant to wear, plastic deformation and crack initiation: but track forces have also increased,and cracking of rails is a major concern. Different steel microstructures have different wear and rolling contact fatigue (RCF) behaviours when subject to cyclic, rolling-sliding, compressive contact. In order to capture the differences, it is necessary to model these at a microstructural level. This paper describes the development of microstructural models for incorporation into a wear and crack initiation model. A new mechanism is introduced which distinguishes RCF lives of pearlitic microstructures with different percentage volumes of pio-eutectoid ferrite. (C) 2008 F.J. Franklin. Published by Elsevier B.V. All rights reserved.

KW - ratcheting failure

KW - crack initiation

KW - rolling contact fatigue

KW - pearlitic rail steel

KW - computer simulation

U2 - 10.1016/j.wear.2008.03.027

DO - 10.1016/j.wear.2008.03.027

M3 - Article

VL - 265

SP - 1332

EP - 1341

JO - Wear

JF - Wear

IS - 9-10

ER -

Modelling rail steel microstructure and its effect on crack initiation

Abstract

Keywords

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