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Experimental and simulation studies of strength and fracture behaviors of wind turbine bearing steel processed by high pressure torsion

Experimental and simulation studies of strength and fracture behaviors of wind turbine bearing steel processed by high pressure torsion
Experimental and simulation studies of strength and fracture behaviors of wind turbine bearing steel processed by high pressure torsion
White structure flaking (WSF) has been found to be one of the failure modes in bearing steels under rolling contacts through the formation of cracks associated with a microstructural change called white etching area (WEA). In the present research, the effects of the high-pressure torsion (HPT) process on the microstructure and mechanical properties of an AISI 52100 alloy are studied. An annealed AISI 52100 was subjected to high-pressure torsion at room temperature under a pressure of up to ~6 GPa for up to three turns. Finite-element modeling (FEM) was used to simulate the process under high-pressure torsion and quasi-constrained conditions to reveal the material property changes occurring in HPT. Scanning electron microscopy and microhardness testing after processing were used to investigate the microstructural and mechanical property evolution of the steel. Strain induced microstructural transformations occur and affect the mechanical properties in a similar way to the well-known white etching area (WEA) found beneath the surface of wind turbine bearings. Here, HPT is used to study the feasibility of creating microstructural changes that are similar to WEA. This paper presents the preliminary results of using HPT to produce WEAs.
1996-1073
1033 (1)-1033 (13)
Wang, Ning
12c074fb-be39-46a1-b3b1-670e6e57c16c
Wilches Pena, Luis V.
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
Mellor, Brian G.
2b13b80f-880b-49ac-82fe-827a15dde2fe
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Wang, Ning
12c074fb-be39-46a1-b3b1-670e6e57c16c
Wilches Pena, Luis V.
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
Mellor, Brian G.
2b13b80f-880b-49ac-82fe-827a15dde2fe
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e

Wang, Ning, Wilches Pena, Luis V., Wang, Ling, Mellor, Brian G. and Huang, Yi (2016) Experimental and simulation studies of strength and fracture behaviors of wind turbine bearing steel processed by high pressure torsion. Energies, 9 (12), 1033 (1)-1033 (13). (doi:10.3390/en9121033).

Record type: Article

Abstract

White structure flaking (WSF) has been found to be one of the failure modes in bearing steels under rolling contacts through the formation of cracks associated with a microstructural change called white etching area (WEA). In the present research, the effects of the high-pressure torsion (HPT) process on the microstructure and mechanical properties of an AISI 52100 alloy are studied. An annealed AISI 52100 was subjected to high-pressure torsion at room temperature under a pressure of up to ~6 GPa for up to three turns. Finite-element modeling (FEM) was used to simulate the process under high-pressure torsion and quasi-constrained conditions to reveal the material property changes occurring in HPT. Scanning electron microscopy and microhardness testing after processing were used to investigate the microstructural and mechanical property evolution of the steel. Strain induced microstructural transformations occur and affect the mechanical properties in a similar way to the well-known white etching area (WEA) found beneath the surface of wind turbine bearings. Here, HPT is used to study the feasibility of creating microstructural changes that are similar to WEA. This paper presents the preliminary results of using HPT to produce WEAs.

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More information

Accepted/In Press date: 2 December 2016
e-pub ahead of print date: 8 December 2016
Published date: 8 December 2016
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 403716
URI: http://eprints.soton.ac.uk/id/eprint/403716
ISSN: 1996-1073
PURE UUID: 758fb4d4-e3a8-4735-95e0-01a683b8fc5b
ORCID for Ling Wang: ORCID iD orcid.org/0000-0002-2894-6784
ORCID for Yi Huang: ORCID iD orcid.org/0000-0001-9259-8123

Catalogue record

Date deposited: 09 Dec 2016 10:20
Last modified: 07 Oct 2020 01:59

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