ASTM_D_7217_-_16.pdf

Designation:D721716Standard Test Method forDetermining Extreme Pressure Properties of Solid BondedFilms Using a High-Frequency,Linear-Oscillation(SRV)TestMachine1This standard is issued under the fixed designation D7217;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers a procedure for determiningextreme pressure properties of solid bonded films underhigh-frequency linear-oscillation motion using the SRV testmachine.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A295/A295M Specification for High-Carbon Anti-FrictionBearing SteelD2510 Test Method for Adhesion of Solid Film LubricantsD4175 Terminology Relating to Petroleum Products,LiquidFuels,and LubricantsD5706 Test Method for Determining Extreme PressureProperties of Lubricating Greases Using a High-Frequency,Linear-Oscillation(SRV)Test MachineD7421 Test Method for Determining Extreme PressureProperties of Lubricating Oils Using High-Frequency,Linear-Oscillation(SRV)Test MachineE45 Test Methods for Determining the Inclusion Content ofSteelG40 Terminology Relating to Wear and Erosion2.2 Other Standards:DIN EN ISO 683-17 Heat-treated Steels,Alloy Steels andFree-Cutting SteelsPart 17:Ball and Roller BearingSteels3DIN EN ISO 13565-2:1998 Geometrical Product Specifica-tions(GPS)Surface Texture:Profile Method;SurfacesHaving Stratified Functional PropertiesPart 2:HeightCharacterization Using Linear Material Ratio Curve Re-placement of DIN 4776:1990:Measurement of SurfaceRoughness;Parameters RK,RPK,RVK,Mr1,Mr2for theDescription of the Material Portion3SAE AS5272 Lubricant,Solid Film,Heat Cured,CorrosionInhibiting Procurement Specification4AMS 2562B Biaxial Wheel Fatigue Test43.Terminology3.1 Definitions:3.1.1 break-in,nin tribology,an initial transition processoccurring in newly established wearing contacts,often accom-panied by transients in coefficient of friction or wear rate,orboth,which are uncharacteristic of the given tribologicalsystems long-term behavior.G403.1.2 coeffcient of friction,or,nin tribology,thedimensionless ratio of the friction force(F)between two bodiesto the normal force(N)pressing these bodies together.G403.1.3 Hertzian contact area,nthe apparent area of contactbetween two nonconforming solid bodies pressed against eachother,as calculated from Hertzs equations of elasticdeformation.G403.1.4 Hertzian contact pressure,nmagnitude of the pres-sure at any specified location in a Hertzian contact area,ascalculated from Hertzs equations of elastic deformation.TheHertzian contact pressure can also be calculated and reportedas maximum value Pmaxin the centre of the contact or asPaverageas average over the total contact area.D74211This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.L0.05 on Solid Lubricants.Current edition approved Dec.1,2016.Published March 2017.Originallyapproved in 2005.Last previous edition approved in 2011 as D7217 11.DOI:10.1520/D7217-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Beuth Verlag GmbH,Burggrafenstrasse 6,D-10787 Berlin,Germany.4Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096,http:/www.sae.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.1.5 lubricant,nany material interposed between twosurfaces that reduces the friction or wear,or both,betweenthem.D41753.1.6 solid bonded film(sbf),nconsists of physically driedor chemically hardened(cured)bonded solid films as well as ofinorganic matrices containing embedded organic or inorganic,or both,solid lubricants with or without lattice layers or softmetals or combinations of these.Synonymssolid film lubri-cants(Test Method D25