1、BRITISH STANDARD BS EN 13144:2003 Metallic and other inorganic coatings Method for quantitative measurement of adhesion by tensile test The European Standard EN 13144:2003 has the status of a British Standard ICS 25.220.40; 25.220.99 BS EN 13144:2003 This British Standard was published under the aut
2、hority of the Standards Policy and Strategy Committee on 24 April 2003 BSI 24 April 2003 ISBN 0 580 41606 2 National foreword This British Standard is the official English language version of EN 13144:2003. The UK participation in its preparation was entrusted to Technical Committee STI/37, Methods
3、of test for metallic and related inorganic coatings including corrosion tests, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publicat
4、ions referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necess
5、ary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interp
6、retation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11 and a back cover. The BSI copy
7、right date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13144 April2003 ICS25.220.40;25.220.99 Englishversion MetallicandotherinorganiccoatingsMethodforquantitative m
8、easurementofadhesionbytensiletest Revtementsmtalliquesetautresrevtementsnon organiquesMthodedemesuragequantitatifde ladhrenceparessaidetraction MetallischeundandereanorganischeberzgeVerfahren zurquantitativenMessungderHaftfestigkeitdurchden Zugversuch ThisEuropeanStandardwasapprovedbyCENon2January20
9、03. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoa
10、nyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAus
11、tria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCent
12、re:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13144:2003EEN13144:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Termsanddefinitions. .4 3 Determinationofadhesionbymeasurement 5 3.1 Principle5 3.2 Apparatus .5 3.
13、2.1 Tensiletestingmachine . .5 3.2.2 Testsblocks .6 3.2.3 Cuttingdevice 6 3.2.4 Adhesives .6 3.3 Procedure .7 3.3.1 Testconditions . .7 3.3.2 Adhesive .7 3.4 Testassembly . .7 3.4.1 “Sandwich“assembly . 7 3.4.2 Assemblyonasingleface. .8 3.4.3 Assemblywithacoatedtestblock . .8 3.5 Measurement9 4 Expr
14、essionofresults . .9 4.1 Adhesion(see2.5) .9 5 Testreport . .10 6 Adhesionappraisaltest . .10 Bibliography 11EN13144:2003(E) 3 Foreword Thisdocument(EN13144:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC262“Metallicandother inorganiccoatings“thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshal
15、lbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundt
16、oimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN13144:2003(E) 4 1Scope ThisEuropeanStandarddescribesaquantitativemeth
17、odforthemeasurementofadhesionofmetallicandother inorganiccoatingsappliedtometallicsurfaces. TypicalcoatingsforwhichthisEuropeanStandardappliesarecopper,nickel,nickelpluschromium,silver,tin, tinnickelalloys,zinc,gold. ThisEuropeanStandarddoesnotapplytocertainhotdip,sprayandmechanicalcoatings. Themeas
18、urementisvalidifthecohesionandadhesionpropertiesoftheadhesivearehigherthanthoseofthe coatingsubjectedtotest. 2 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply: 2.1 measurement setofoperationshavingtheobjectofdeterminingavalueofaquantity NOTE Theoperation
19、smaybeperformedautomatically. InternationalVocabularyofBasicandGeneralTermsinMetrology,1993,definition2.1 2.2 principleofmeasurement scientificbasisofameasurement EXAMPLES a) thethermoelectriceffectappliedtothemeasurementoftemperature; b) theJosephsoneffectappliedtothemeasurementofelectricpotentiald
20、ifference; c) theDopplereffectappliedtothemeasurementofvelocity; d) theRamaneffectappliedtothemeasurementofthewavenumberofmolecularvibrations InternationalVocabularyofBasicandGeneralTermsinMetrology,1993,definition2.3 2.3 methodofmeasurement logicalsequenceofoperations,describedgenerically,usedinthe
21、performanceofmeasurements NOTE Methodsofmeasurementmaybequalifiedinvariouswayssuchas: substitutionmethod differential method null method. InternationalVocabularyofBasicandGeneralTermsinMetrology,1993,definition2.4EN13144:2003(E) 5 2.4 measurementprocedure setofoperations,describedspecifically,usedin
22、theperformanceofparticularmeasurementsaccordingtoagiven method NOTE Ameasurementprocedureisusuallyrecordedinadocumentthatissometimesitselfcalleda“measurement procedure“(orameasurementmethod)andisusuallyinsufficientdetailtoenableanoperatortocarryoutameasurement withoutadditionalinformation. Internati
23、onalVocabularyofBasicandGeneralTermsinMetrology,1993,definition2.5 2.5 adhesion forcerequiredtoseparateacoatingfromitssubstrate NOTE Adhesionmaybedeemedinadequateinthepresenceofblisters,scalingandanydefectthatresultsfromthe separationofthecoatingfromitssubstrate. 2.6 cohesion physicalpropertyresulti
24、ngfromthemagnitudeofforcesjoiningtheatomsand/ormoleculesofacoating 3 Determinationofadhesionbymeasurement 3.1Principle Thetensilestrengthrequiredtoseparatethecoatingfromitssubstrate(see2.5)ismeasuredperpendiculartothe substrate. Theresultofthemeasurementisinfluencednotonlybythemechanicalpropertiesof
25、thesystemtobe characterized,butalsobythenatureandpreparationofthesubstrate(see3.2.4and3.3.2). Theresultofthemeasurementcanalsobeaffectedbyinternalstressinthedeposit,whichinfluencesadhesion. Theresultofthemeasurementisthetensilestrengthrequiredtobreaktheweakestinterfaceortheweakest constituentofthete
26、stassembly.Acombinationofbothadhesionandcohesiverupturescanalsooccur. 3.2Apparatus 3.2.1 Tensiletestingmachine capableofbeingusedinaccordancewith3.5. NOTE SuitabledevicesfortheapplicationofthetensileforceareshowninFigure1.EN13144:2003(E) 6 1 4 6 2 3 7 2 2 3 4 5 a b Key 1Support 2Balljoint 3Testblock
27、 4Coating 5Substrate 6Testspecimen 7Supportdesignedsoastopermitanarticulatedassembly Figure1Devicesfortheapplicationofthetensileforce 3.2.2Tests blocks forusewiththetensiletestingmachine(3.2.1),madeofmachinedsteel,havingadiameterof20mm(unless otherwiseagreed)andsuchthicknessastoensuretheabsenceofdef
28、ormationsduringthetest. Thelengthoftheblockshallbenotlessthanhalfitsdiameter(10mm).Priortouse,thefacesshallbemachined perpendiculartothemajoraxisoftheblock. 3.2.3Cutting device forexampleacarbidetoolorascribingiron,capableofcuttingthecoatingthroughtothesubstrate,alongthe circumferenceofthetestblock.
29、 3.2.4Adhesives Specialattentionshallbegiventotheselectionofadhesivesforuseinthetest(see3.1). NOTE1 Theadhesionattheinterfaceoftheadhesiveandcoatingcanbeimprovedbyslightlyabradingthesurfaceofthe coatingpriortoapplyingtheadhesivetotheappropriatesurfaceofthetestblock.EN13144:2003(E) 7 NOTE2 Inthemajor
30、ityofcases,cyanoacrylateadhesives,solventfreebicomponentepoxidesandperoxidecatalysed polyesterscanbeused,althoughtheiradhesionpropertiesareinferiortothoseofmetalliccoatings. 3.3Procedure 3.3.1Test conditions Thetestshallbecarriedoutatatemperatureof(23 2)Candatarelativehumidity(50 5)%. 3.3.2Adhesive
31、Theadhesiveshallbepreparedandappliedinaccordancewiththemanufacturersinstructions.Theminimum quantityofadhesivenecessarytoobtainauniformjointbetweentheconstituentsofthetestassemblyshallbe used;anyexcessadhesiveshallberemoved. Fordeformablesubstrates,thesubstrateshouldbecoatedonbothfacesandsubjectedth
32、e“sandwich“method (see3.4.1). 3.4Testassembly 3.4.1 “Sandwich“assembly Cutatestspecimenintheshapeofa30mmdiameterdiscora30mmsidedsquarefromthecoatedsubstrate. Takingcarenottodeformthespecimen,applytheadhesiveuniformlyoverthefacesoftwofreshlycleanedtest blocks(3.2.2)ofthesametestarea.Placethespecimenb
33、etweenthetwoadhesivecoatedfacesofthetestblocks sothattheaxesoftheblocksarealignedwiththecentreofthespecimenandapplyaconstantpressureduringthe settingtimeoftheadhesive.Attheendofthesettingtime,cutthecoatingundertestaroundthecircumferenceof thetestblocksthroughtothesubstrate(seeFigure2). 1 2 Key 1Adhe
34、sivecoatedtestblock 2Coatedsubstrate Figure2“Sandwich“assemblycorrespondingtoFigure1a)EN13144:2003(E) 8 3.4.2 Assemblyonasingleface Applytheadhesiveuniformlyoverthefreshlycleanedfaceofatestblock.Placetheadhesivecoatedfaceofthe testblockonthecoatedsubstrateandapplyaconstantpressureduringthesettingtim
35、eoftheadhesive.Atthe endofthesettingtime,cutthecoatingundertestaroundthecircumferenceofthetestblockthroughtothe substrate.Positiontheexternalringandconductthetest(seeFigure3). 1 2 3 4 Key 1Externalring 2Adhesivecoatedtestblock 3Coating 4Coatedsubstrate Figure3AssemblyonasinglefacecorrespondingtoFigu
36、re1b) 3.4.3 Assemblywithacoatedtestblock Applytheadhesiveuniformlyoverthefreshlycleanedfaceofatestblock.Placetheadhesivecoatedfaceofthe testblockonthecoatedtestblockandapplyaconstantpressureduringthesettingtimeoftheadhesive.Atthe endofthesettingtime,cutthecoatingundertestaroundthecircumferenceofthet
37、estblocksandconductthetest (seeFigure4). 1 2 3 Key 1Adhesivecoatedtestblock 2Coating 3Coatedtestblock Figure4AssemblywithacoatedtestblockcorrespondingtoFigure1a)EN13144:2003(E) 9 3.5Measurement Immediatelyafterthesettingtimeoftheadhesivespecifiedbythemanufacturer,placethetestassemblyinthe tensiletes
38、tingmachine(3.2.1),takingcaretoalignthetestblockssothatthetensileforceisappliedperpendicular tothesurfaceplaneofthecoatedsubstratewithoutanybendingmoment.Applyanincreasingtensileforceata constantratelessthan1MPa/s 1) ,sothattherupturingoftheassemblyoccurswithin2min.followingtheinitial applicationoft
39、heforce. Thenumberoftestassembliestobemanufactured,thelocation,orientationandpreparationofthesamples,as wellasthenumberofmeasurementstobecarriedoutshallbespecified. Thetensileforcerequiredtoruptureeachtestassemblyshallberecordedandtheseparatedsurfacesshallbe examinedinordertodeterminethenatureofther
40、upture. 4 Expressionofresults 4.1 Adhesion(see2.5) Thetensilestrength A dh ,inmegapascals(MPa 1) ),foreachtestassemblyisgivenbytheformula: S F A = dh where Fistheruptureforce,innewtons(see3.5); S istheareaofthetestblock,insquaremillimetres. 4.2 Natureoftherupture Thevalueoftheadhesionshallbesuppleme
41、ntedbytheexpressionofthesurfacepercentageandlocationofthe rupturewithinthesystembeingtested,intermsofadhesion/cohesiveseparation.Thefollowingsystemshallbe usedtodescribetheresultsobserved: A =Cohesivefailureofthesubstrate; A/B =Adhesionfailurebetweenthesubstrateandthefirstlayerofcoating; B =Cohesive
42、failureofthefirstlayerofcoating; B/C =Adhesionfailurebetweenthefirstandsecondlayerofcoating; /Y =Adhesionfailurebetweenthefinallayerandtheadhesive; Y =Cohesivefailureoftheadhesive; Y/Z =Adhesionfailurebetweentheadhesiveandthetestblock. EXAMPLEOFEXPRESSIONOFRESULTS 20MPa, 30%B, 70%B/C 1) 1MPa=1N/mmEN
43、13144:2003(E) 10 5 Testreport Unlessotherwiseagreed,thetestreportshallcontainthefollowinginformation: a) thetypeandidentificationoftheproductundertest; b) thedescriptionofthecoatingsystemandthebasismetalorsubstrate; c) thenumber,dimensionsandshapeofthetestpieces,thetypeofassemblyandthenatureoftheadhesive; d) thethicknessofthecoating; e) thereferencetothisstandardincludingitsdateofpublication,andtotheproductsnationalstandard; f) a
