Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel
Autor(a) principal: | |
---|---|
Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/68677 |
Resumo: | It is well known that fatigue behaviour is an important parameter to be considered in mechanical components subjected to constant and variable amplitude loadings. In combination with corrosion phenomenon, fatigue effects were responsible for proximally 64% of fails that occur in metallic parts of aeronautical accidents in the last 30 years. Recovered substrates have been extensively used in the aerospace field. Cadmium electroplating has been widely applied to promote protective coatings in aeronautical components, resulting in excellent corrosion protection combined with a good performance in cyclic loading. Ecological considerations allied to the increasing demands for corrosion resistance, resulted in the search for possible alternatives. Zinc-nickel alloys received considerable interest recently, since these coatings showed some advantages such as a good resistance to white and red rust, high plating rates and acceptation in the market. In this study the effects of zinc-nickel coatings electroplated on AISI 4340 high strength steel were analysed on rotating bending and axial fatigue strength, corrosion and adhesion resistance. Compressive residual stress field was measured by a X-ray tensometry prior to fatigue tests. Optical microscopy images showed coating thicknesses, adhesion and the existence of an uniform coverage of nearly all substrates. The fractured fatigue specimens were investigated using a scanning electron microscope. Three different zinc-nickel coating thicknesses were tested and comparison with rotating bending fatigue data from specimens cadmium electroplated and heat treated at 190°C for 3, 8 and 24 hours to avoid the diffusion of hydrogen in the substrate, was performed. Experimental results showed effect of coatings on the AISI 4340 steel behaviour when submitted to fatigue testing and the existence of coating thickness influence on the fatigue strength. |
id |
UNSP_d4d32aa057f4243a86e6128f1c4aa2be |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/68677 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steelAdhesion resistanceAeronautical componentsAerospace fieldAISI 4340 steelAxial fatigueCadmium electroplatingCoating thicknessCompressive residual stressCorrosion phenomenaCyclic loadingsFatigue behaviourFatigue effectsFatigue specimenFatigue strengthMechanical componentsMetallic partPlating ratesRotating bendingRotating bending fatigueScanning Electron MicroscopeTensometryUniform coverageVariable amplitude loadingZinc-nickelZinc-nickel alloysAdhesionAerodynamicsCadmiumCadmium platingCorrosion resistanceElectroplatingFatigue testingFractureHigh strength steelHydrogenNickel alloysNickel coatingsOptical microscopyProtective coatingsScanning electron microscopySteel testingSubstratesThickness measurementZincZinc coatingsBending strengthIt is well known that fatigue behaviour is an important parameter to be considered in mechanical components subjected to constant and variable amplitude loadings. In combination with corrosion phenomenon, fatigue effects were responsible for proximally 64% of fails that occur in metallic parts of aeronautical accidents in the last 30 years. Recovered substrates have been extensively used in the aerospace field. Cadmium electroplating has been widely applied to promote protective coatings in aeronautical components, resulting in excellent corrosion protection combined with a good performance in cyclic loading. Ecological considerations allied to the increasing demands for corrosion resistance, resulted in the search for possible alternatives. Zinc-nickel alloys received considerable interest recently, since these coatings showed some advantages such as a good resistance to white and red rust, high plating rates and acceptation in the market. In this study the effects of zinc-nickel coatings electroplated on AISI 4340 high strength steel were analysed on rotating bending and axial fatigue strength, corrosion and adhesion resistance. Compressive residual stress field was measured by a X-ray tensometry prior to fatigue tests. Optical microscopy images showed coating thicknesses, adhesion and the existence of an uniform coverage of nearly all substrates. The fractured fatigue specimens were investigated using a scanning electron microscope. Three different zinc-nickel coating thicknesses were tested and comparison with rotating bending fatigue data from specimens cadmium electroplated and heat treated at 190°C for 3, 8 and 24 hours to avoid the diffusion of hydrogen in the substrate, was performed. Experimental results showed effect of coatings on the AISI 4340 steel behaviour when submitted to fatigue testing and the existence of coating thickness influence on the fatigue strength.Department of Materials and Technology State University of São Paulo, Cep. 12516-410Universidade Estadual Paulista (Unesp)Voorwald, H. J. C.Miguel, I. M.Costa, M. Y. P.2014-05-27T11:21:46Z2014-05-27T11:21:46Z2005-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject2599-260411th International Conference on Fracture 2005, ICF11, v. 4, p. 2599-2604.http://hdl.handle.net/11449/686772-s2.0-84869850003Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng11th International Conference on Fracture 2005, ICF11info:eu-repo/semantics/openAccess2021-10-23T21:41:23Zoai:repositorio.unesp.br:11449/68677Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:15:32.144990Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel |
title |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel |
spellingShingle |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel Voorwald, H. J. C. Adhesion resistance Aeronautical components Aerospace field AISI 4340 steel Axial fatigue Cadmium electroplating Coating thickness Compressive residual stress Corrosion phenomena Cyclic loadings Fatigue behaviour Fatigue effects Fatigue specimen Fatigue strength Mechanical components Metallic part Plating rates Rotating bending Rotating bending fatigue Scanning Electron Microscope Tensometry Uniform coverage Variable amplitude loading Zinc-nickel Zinc-nickel alloys Adhesion Aerodynamics Cadmium Cadmium plating Corrosion resistance Electroplating Fatigue testing Fracture High strength steel Hydrogen Nickel alloys Nickel coatings Optical microscopy Protective coatings Scanning electron microscopy Steel testing Substrates Thickness measurement Zinc Zinc coatings Bending strength |
title_short |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel |
title_full |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel |
title_fullStr |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel |
title_full_unstemmed |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel |
title_sort |
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel |
author |
Voorwald, H. J. C. |
author_facet |
Voorwald, H. J. C. Miguel, I. M. Costa, M. Y. P. |
author_role |
author |
author2 |
Miguel, I. M. Costa, M. Y. P. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Voorwald, H. J. C. Miguel, I. M. Costa, M. Y. P. |
dc.subject.por.fl_str_mv |
Adhesion resistance Aeronautical components Aerospace field AISI 4340 steel Axial fatigue Cadmium electroplating Coating thickness Compressive residual stress Corrosion phenomena Cyclic loadings Fatigue behaviour Fatigue effects Fatigue specimen Fatigue strength Mechanical components Metallic part Plating rates Rotating bending Rotating bending fatigue Scanning Electron Microscope Tensometry Uniform coverage Variable amplitude loading Zinc-nickel Zinc-nickel alloys Adhesion Aerodynamics Cadmium Cadmium plating Corrosion resistance Electroplating Fatigue testing Fracture High strength steel Hydrogen Nickel alloys Nickel coatings Optical microscopy Protective coatings Scanning electron microscopy Steel testing Substrates Thickness measurement Zinc Zinc coatings Bending strength |
topic |
Adhesion resistance Aeronautical components Aerospace field AISI 4340 steel Axial fatigue Cadmium electroplating Coating thickness Compressive residual stress Corrosion phenomena Cyclic loadings Fatigue behaviour Fatigue effects Fatigue specimen Fatigue strength Mechanical components Metallic part Plating rates Rotating bending Rotating bending fatigue Scanning Electron Microscope Tensometry Uniform coverage Variable amplitude loading Zinc-nickel Zinc-nickel alloys Adhesion Aerodynamics Cadmium Cadmium plating Corrosion resistance Electroplating Fatigue testing Fracture High strength steel Hydrogen Nickel alloys Nickel coatings Optical microscopy Protective coatings Scanning electron microscopy Steel testing Substrates Thickness measurement Zinc Zinc coatings Bending strength |
description |
It is well known that fatigue behaviour is an important parameter to be considered in mechanical components subjected to constant and variable amplitude loadings. In combination with corrosion phenomenon, fatigue effects were responsible for proximally 64% of fails that occur in metallic parts of aeronautical accidents in the last 30 years. Recovered substrates have been extensively used in the aerospace field. Cadmium electroplating has been widely applied to promote protective coatings in aeronautical components, resulting in excellent corrosion protection combined with a good performance in cyclic loading. Ecological considerations allied to the increasing demands for corrosion resistance, resulted in the search for possible alternatives. Zinc-nickel alloys received considerable interest recently, since these coatings showed some advantages such as a good resistance to white and red rust, high plating rates and acceptation in the market. In this study the effects of zinc-nickel coatings electroplated on AISI 4340 high strength steel were analysed on rotating bending and axial fatigue strength, corrosion and adhesion resistance. Compressive residual stress field was measured by a X-ray tensometry prior to fatigue tests. Optical microscopy images showed coating thicknesses, adhesion and the existence of an uniform coverage of nearly all substrates. The fractured fatigue specimens were investigated using a scanning electron microscope. Three different zinc-nickel coating thicknesses were tested and comparison with rotating bending fatigue data from specimens cadmium electroplated and heat treated at 190°C for 3, 8 and 24 hours to avoid the diffusion of hydrogen in the substrate, was performed. Experimental results showed effect of coatings on the AISI 4340 steel behaviour when submitted to fatigue testing and the existence of coating thickness influence on the fatigue strength. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-12-01 2014-05-27T11:21:46Z 2014-05-27T11:21:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
11th International Conference on Fracture 2005, ICF11, v. 4, p. 2599-2604. http://hdl.handle.net/11449/68677 2-s2.0-84869850003 |
identifier_str_mv |
11th International Conference on Fracture 2005, ICF11, v. 4, p. 2599-2604. 2-s2.0-84869850003 |
url |
http://hdl.handle.net/11449/68677 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
11th International Conference on Fracture 2005, ICF11 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2599-2604 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128490518609920 |