ASTM B905-2000(2005) Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test《用机械化磁带试验评定金属和无机覆层粘附力的标准试验方法》.pdf
《ASTM B905-2000(2005) Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test《用机械化磁带试验评定金属和无机覆层粘附力的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM B905-2000(2005) Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test《用机械化磁带试验评定金属和无机覆层粘附力的标准试验方法》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: B 905 00 (Reapproved 2005)Standard Test Methods forAssessing the Adhesion of Metallic and Inorganic Coatingsby the Mechanized Tape Test1This standard is issued under the fixed designation B 905; the number immediately following the designation indicates the year oforiginal adoption or,
2、in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 These test methods describe procedures for assessingthe adhesion of metallic and
3、 inorganic coatings and other thinfilms to metallic and nonmetallic substrates. Assessment ismade by applying pressure-sensitive tape to a coated surfaceand then utilizing a mechanical device to remove the tape at aregulated, uniform rate and constant angle while simulta-neously recording the remova
4、l force.1.2 Four methods are described. Methods A1 and A2 areintended primarily for use on parts. Methods B1 and B2 areintended primarily for use in laboratory evaluations. MethodsB1 and B2 are not recommended for testing coatings and filmson polymer substrates.1.3 These test methods may be used to
5、establish whether theadhesion of a coating to a substrate is within a required range(between a quantified low and a quantified high level). Deter-mination of actual adhesive forces requires more sophisticatedmethods of measurement. In multilayer systems adhesionfailure may occur between intermediate
6、 coating layers so thatthe adhesion of the total coating system to the substrate maynot necessarily be determined.1.4 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 s
7、afety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B 183 Practice for Preparation of Low-Carbon Steel forElectroplatingB 242 Practice for Preparation of High-Carbon Steel forElectroplatingB 252 Guide for Prepa
8、ration of Zinc Alloy Die Castings forElectroplating and Conversion CoatingB 253 Guide for Preparation of Aluminum Alloys for Elec-troplatingB 254 Practice for Preparation of and Electroplating onStainless SteelB 281 Practice for Preparation of Copper and Copper-BaseAlloys for Electroplating and Conv
9、ersion CoatingB 319 Guide for Preparation of Lead and Lead Alloys forElectroplatingB 320 Practice for Preparation of Iron Castings for Electro-platingB 343 Practice for Preparation of Nickel for Electroplatingwith NickelB 480 Guide for Preparation of Magnesium and MagnesiumAlloys for ElectroplatingB
10、 481 Practice for Preparation of Titanium and TitaniumAlloys for ElectroplatingB 482 Practice for Preparation of Tungsten and TungstenAlloys for ElectroplatingB 537 Practice for Rating of Electroplated Panels Subjectedto Atmospheric ExposureB 538 Method of FACT (Ford Anodized Aluminum Corro-sion) Te
11、st3B 629 Practice for Preparation of Molybdenum and Molyb-denum Alloys for ElectroplatingB 630 Practice for Preparation of Chromium for Electro-plating with ChromiumB 727 Practice for Preparation of Plastics Materials forElectroplatingD 1730 Practices for Preparation of Aluminum andAluminum-Alloy Su
12、rfaces for PaintingD 1731 Practices for Preparation of Hot-Dip AluminumSurfaces for PaintingD 1732 Practices for Preparation of Magnesium Alloy Sur-faces for PaintingD 2370 Test Method for Tensile Properties of OrganicCoatingsD 3330/D 3330M Test Methods for Peel Adhesion ofPressure-Sensitive TapeD 3
13、359 Test Methods for Measuring Adhesion by Tape Test1These test methods are under the jurisdiction of ASTM Committee B08 onMetallic and Inorganic Coatings and are the direct responsibility of SubcommitteeB08.10 on Test Methods.Current edition approved June 1, 2005. Published June 2005. Originallyapp
14、roved in 2000. Last previous edition approved in 2000 as B 905 00.2For 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 web
15、site.3Withdrawn.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3. Summary of Test Method3.1 Pressure-sensitive tape is adhered to the surface of thecoating and then removed utilizing a motorized mechanicaldevice that peels the tape
16、at a constantly maintained angle andcontrolled rate of peel.Adigital recording force gage is used torecord the maximum peel force.NOTE 1All due care must be taken to ensure that test specimens arehandled and stored such that they are not subjected to conditions that willcause deleterious effects. Th
17、ese conditions include but are not limited tohandling without the use of gloves, storing in areas that accumulate dust,areas of high humidity or where the sample may be subjected to fumes orvapors that might condense on the sample.3.2 Methods A1 and A2:3.2.1 In these methods, which are nondestructiv
18、e, the mea-surement area used is the unbroken coating surface with peelangles of 90 and 180 respectively.3.2.2 Adhesion is assessed in terms of “passed,” if thecoating does not detach, or “failed,” if the coating detacheswithin the specified range of peel forces as recorded during thetest.3.3 Method
19、s B1 and B2:3.3.1 In these methods, which are destructive, the measure-ment area used is a broken coating surface created by scoringa lattice pattern through the coating to the substrate and peelingat angles of 90 and 180, respectively.3.3.2 Adhesion is assessed qualitatively on the 0 to 5 scale.4.
20、Significance and Use4.1 If a coating is to fulfill its function of protecting orimparting unique properties to the surface of a substrate, itmust adhere to the substrate for the expected service life.Because surface preparation (or lack of it) has a drastic effecton adhesion of coatings, a test meth
21、od for evaluating adhesionto different surface treatments or of different coatings to thesame treatment is of considerable use to the industry.4.2 The limitations of all adhesion methods, and the specificlimitation of this test method to lower levels of adhesion (see1.3) should be recognized before
22、using it. These test methodsare mechanized adaptations of Test Methods D 3359; therefore,the intra- and interlaboratory precision of these test methodsare similar to Test Methods D 3359 and to other widely-accepted tests for coated substrates, for example, Test MethodD 2370, but this is partly the r
23、esult of it being insensitive to allbut large differences in adhesion. The pass-fail scale of 0 to 5for Method B1 and B2 was selected deliberately to avoid afalse impression of being sensitive.5. Apparatus and Materials5.1 Peel Test FixtureThe fixture shall consist of a frame towhich the specimen is
24、 rigidly clamped, and a moveable beamby which the tape is pulled off under a constant peel angle of90 (MethodA1 and B1) or 180 (MethodA2 and B2). The peelrate should be controllable between 20 mm/s and 200 mm/s forMethod A1 and B1 and between 14 mm/s and 140 mm/s forMethods A2 and B2. A recording fo
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