Designation:D3762−03(Reapproved2010)StandardTestMethodforAdhesive-BondedSurfaceDurabilityofAluminum(WedgeTest)1ThisstandardisissuedunderthefixeddesignationD3762;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethod2,3simulatesinaqualitativemannertheforcesandeffectsonanadhesivebondjointatmetal-adhesive/primerinterface.Ithasproventobehighlyreliableindeter-miningandpredictingtheenvironmentaldurabilityofadher-endsurfacepreparations.Themethodhasproventobecorrelatablewithserviceperformanceinamannerthatismuchmorereliablethanconventionallapshearorpeeltests(Note2).NOTE1—Whilethistestmethodisintendedforuseinaluminum-to-aluminumapplicationsitmaybeusedfordeterminingsurfacedurabilityofothermetalsandplasticsprovidedconsiderationisgiventothicknessandrigidityoftheadherends.NOTE2—Thistestmethodisnotaquantitativefracturestrengthtestmethod.TomeasurefracturestrengthseeTestMethodD3433.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:4D907TerminologyofAdhesivesD3433TestMethodforFractureStrengthinCleavageofAdhesivesinBondedMetalJoints3.Terminology3.1Definitions—ManyofthetermsusedinthistestmethodaredefinedinTerminologyD907.4.SummaryofTestMethod4.1Awedgeisforcedintothebondlineofaflat-bondedaluminumspecimen,therebycreatingatensilestressintheregionoftheresultingcracktip.Thestressedspecimenisexposedtoanaqueousenvironment,usuallyatanelevatedtemperature,ortoanappropriateenvironmentrelativetotheuseofthebondedstructure.Theresultingcrackg...
