ASTM_D_2510_-_94_2012.pdf

Designation:D251094(Reapproved 2012)Standard Test Method forAdhesion of Solid Film Lubricants1This standard is issued under the fixed designation D2510;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.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This test method2covers the measurement of the adhe-sion characteristics of dry solid film lubricants.1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are provided forinformation only.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:3B209M Specification for Aluminum and Aluminum-AlloySheet and Plate(Metric)D1000 Test Methods for Pressure-Sensitive Adhesive-Coated Tapes Used for Electrical and Electronic Applica-tionsD1193 Specification for Reagent WaterD1730 PracticesforPreparationof AluminumandAluminum-Alloy Surfaces for PaintingD3330/D3330M Test Method for PeelAdhesion of Pressure-Sensitive TapeF22 Test Method for Hydrophobic Surface Films by theWater-Break Test2.2 U.S.Military Specification:4MIL-L-460103.Terminology3.1 Definitions:3.1.1 dry solid film lubricants,ndry coatings consisting oflubricating powders in a solid matrix bonded to one or bothsurfaces to be lubricated.4.Summary of Test Method4.1 The dry solid film lubricant is applied to anodizedaluminum panels,immersed in water or other fluids for 24 h,and then wiped dry.A strip of masking tape is pressed onto thepanel and removed abruptly.Film removal exposing thesurface of the metal panel is the criterion for failure.5.Significance and Use5.1 Effective solid film lubricant coatings must adhere tosurfaces to provide adequate lubrication in applications withrestricted access where fluid lubricants cannot easily be replen-ished.Loss of coating adhesion results in metal to metalcontact causing significant wear of contacting surfaces.Adhe-sion is critical to the performance of the solid film lubricant.Examples of solid film lubricant applications include fasteners,bearings and sliding members in automotive,aircraft,andaerospace hardware.5.2 This test method is intended to determine the adhesionof solid film lubricant coatings when submitted to contact withwater and other fluids.Results of this test provide an indicationof the suitability of the lubricant coating in applications wherecontact with water or other fluids is likely.6.Apparatus6.1 Rubber Covered Steel RollerA steel roller,82.6 6 2.5mm(3.25 6 0.1 in.)in diameter and 44.5 6 1.3 mm(1.75 60.05 in.)in width,covered with rubber approximately 6.4 mm(14in.)in thickness having a durometer hardness of 80 6 5.The weight of the roller proper which applies pressure to thespecimen shall be 2.04 6 0.05 kg(4.5 6 0.1 lb).It shall be soconstructed that the weight of the handle is not added to theweight of the roller during use.6.2 Stylus,or equivalent.51This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.L0.05 on Solid Lubricants.Current edition approved April 15,2012.Published April 2012.Originallyapproved in 1966.Last previous edition approved in 2006 as D251094(2006).DOI:10.1520/D2510-94R12.2Refer to U.S.Military Specification MIL-L-46010March 4,1988.3For 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.4Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.5L.S.Starrett Scratch Gage No.29 or equivalent.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.3 Oven,forced-circulation,capable of maintaining 149 65.5C(300 6 10F).6.4 Micrometer,reading 0 to 25 6 0.0025 mm(0 to 1 60.0001 in.)with a 1-ball anvil.7.Reagents and Materials7.1 Test Panels,of aluminum alloy 2024(conforming toSpecification B209M,approximately 75 by 150 by 0.5 mm(3by 6 by 0.020 in.)thick,anodized in accordance with PracticesD1730,Type C,Method 2,chromic acid coatings.7.2 Tape,Masking,25 mm(1 in.)wide,made of paper(pressure-sensitive)with an adhesive strength of at least 28kg/m(25 oz/in.)when tested in accordance with Procedure Aof Test Methods D3330/D3330M.NOTE1A suitable tape meeting this specification is available com-mercially.6It must be less than 12 months old.Its adhesion strength maybe ch