1、Designation: G 118 02 (Reapproved 2007)Standard Guide forRecommended Format of Wear Test Data Suitable forDatabases1This standard is issued under the fixed designation G 118; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、 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 This guide covers and is intended to assist in theorganization of wear test data for the purpose of data storage
3、incomputerized databases. It is meant to assist the user indeveloping databases for the purpose of data comparison andutilization. Data elements (fields) are described covering bothmaterials and wear test issues.2. Referenced Documents2.1 ASTM Standards:2E 527 Practice for Numbering Metals and Alloy
4、s (UNS)E 1314 Practice for Structuring Terminological RecordsRelating to Computerized Test Reporting and MaterialsDesignation Formats3E 1338 Guide for Identification of Metals and Alloys inComputerized Material Property DatabasesG40 Terminology Relating to Wear and ErosionG65 Test Method for Measuri
5、ng Abrasion Using the DrySand/Rubber Wheel ApparatusG75 Test Method for Determination of Slurry Abrasivity(Miller Number) and Slurry Abrasion Response of Mate-rials (SAR Number)G77 Test Method for Ranking Resistance of Materials toSliding Wear Using Block-on-Ring Wear TestG83 Test Method for Wear Te
6、sting with a Crossed-CylinderApparatus3G99 Test Method for Wear Testing with a Pin-on-DiskApparatusG 105 Test Method for Conducting Wet Sand/RubberWheel Abrasion TestsG115 Guide for Measuring and Reporting Friction Coeffi-cientsG 132 Test Method for Pin Abrasion Testing2.2 ANSI Standard:B46.1.85 Sur
7、face Texture, Surface Roughness, Waviness43. Terminology3.1 DefinitionsFor definitions of some terms applicable tothis guide, see Practice E 1314 and Terminology G40.3.2 Definitions of Terms Specific to This Standard:3.2.1 classmajor material class, for example, metal, ce-ramic, polymer, etc.3.2.2 c
8、ommon namename frequently given to a particularmaterial, for example, nylon.3.2.3 contact environmentterms describing the environ-ment at the contact, for example, atmosphere, humidity, gasespresent, and so forth.3.2.4 formmaterial form, for example, rod, sheet, andcast.3.2.5 gradedesignation given
9、a material by a manufac-turer.3.2.6 hardnessusual methods for hardness determinationsinclude Rockwell C, Vickers, etc. Load should be specified.3.2.7 processing treatmentdescriptive phrase on the pro-cess method, for example, casting, hardening, and conditions,for example, time, temperature.3.2.8 sp
10、ecificationprecise statement of a set of require-ments to be satisfied by a material, promulgated by anorganization, for example, ASTM, SAE, etc.3.2.9 specimen shapeshape of the test specimen, forexample, block, pin.3.2.10 standard test specificationtest designation, that is,ASTM, SAE, etc. (Note th
11、at the test must conform to thestandard if so designated.)3.2.11 subclasssubdivisions of a class, for example, fer-rous, boride, etc.4. Summary of Guide4.1 This guide specifies a set of fields that form the basis ofa format for organizing wear data for use in computerizeddatabases. Sufficient inform
12、ation is provided in this guide toenable the user to construct a database structure suitable for anintended application involving wear. A set of essential fields in1This guide is under the jurisdiction of ASTM Committee G02 on Wear andErosion and is the direct responsibility of Subcommittee G02.20 o
13、n Computeriza-tion in Wear.Current edition approved July 1, 2007. Published September 2007. Originallyapproved in 1993. Last previous edition approved in 2002 as G 11802.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annu
14、al Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive,
15、 PO Box C700, West Conshohocken, PA 19428-2959, United States.the database are identified. The user may also add or deletefields to customize the database format for any particularapplication.5. Significance and Use5.1 This guide can be used to facilitate categorizing weardata for insertion into a c
16、omputerized database. This guideidentifies a set of essential data fields which should be providedfor all records, and also identifies additional optional datafields. This guide does not require the use of any particulardatabase format, nor does it endorse any particular computerdatabase software.5.
17、2 Because of increased activity in building computerizeddatabases and the desire to encourage their uniformity andtherefore the ease of data comparison and data interchange, itis appropriate to provide a guide for the inclusion of wear testdata in databases. Availability of a guide also encourages t
18、hebuilders of databases to include sufficiently complete informa-tion so that comparisons among individual sources may bemade with assurance that similarities or differences, or both, inthe wear test procedures and conditions are covered.5.3 The set of data fields described in this guide will usuall
19、ybe expanded and customized by the user for specific purposes.It should be possible to arrange the additional fields within thelogical structure that is presented in this guide.5.4 This guide does not apply to data from rolling contactwear tests, galling tests, or erosion or cavitation tests. Data t
20、hatare included should apply to standard tests or to steady-statewear.5.5 This guide has no implication on data required formaterials production or purchase. Reporting of actual testresults should be as described in the actual material specifica-tion or as agreed upon between the purchaser and the m
21、anu-facturer, as shown on the purchase order and acknowledge-ment.6. Data Categorization6.1 Seven general categories of data are identified for usewith wear databases, as follows:6.1.1 Test IdentificationCoded information that describesthe test, for example, test number.6.1.2 Test TypeIdentification
22、 of the type of sliding weartest, for example, standardized (examples include Test Meth-ods G77, G83, and G99).6.1.3 Test ConditionsDescription of the exposure condi-tions, for example, test load.6.1.4 Material DefinitionInformation on the materialpairs used in the test, for example, common names (b
23、ack-ground information is provided in Practice E 527 and GuideE 1338).6.1.5 Specimen IdentificationDetailed information on thetest specimens, for example, size, surface texture (ANSIB46.1.85).6.1.6 Test ResultsListing of the numeric results of the test,for example, amount of wear, friction coefficie
24、nt (see GuideG115for details of friction measurements).6.1.7 DocumentationIdentification of the location andtype of documentation concerning the test data, for example,place of publication.7. Data Format7.1 A recommended format for wear test data is shown inTable 1. An example of the use of this for
25、mat is shown inAppendix X1. There are three columns of information for eachitem, that is, each field name, as follows:7.1.1 Field Reference NumberA number for each indi-vidual field within this format guideline. This number has nopermanent value and does not become part of the databaseitself. The nu
26、mber is keyed to the set of categories presented inSection 6 of this guide.7.1.2 Field Name or DescriptionThe complete name ofthe field, descriptive of the information to be entered in thisfield of the database.7.1.3 Field TypeThere are three types of fields as de-scribed in the following:7.1.3.1 Ca
27、tegory SetsClosed (complete) sets containingall possible (acceptable) inputs to the field.7.1.3.2 AlphanumericRepresentative inputs to the field.7.1.3.3 NumericThe numeric value in the units listed.7.2 The fields included in this format are those recom-mended to provide sufficiently complete informa
28、tion that usersmay be confident of their ability to compare sets of data fromindividual databases. This set of fields should make thedatabase useful to a relatively broad range of users.7.3 It is recognized that many databases are prepared forvery specific applications, and individual database build
29、ersmay elect to omit certain pieces of information considered tobe of no value for that specific application. However, there arecertain minimum number of fields considered essential to anydatabase without which the user will not have sufficientinformation to reasonably interpret or compare the data.
30、 In therecommended format (Table 1), these fields are marked.7.4 The presentation of this format does not represent arequirement that all of the elements included in the recommen-dation be appropriate for every database. Rather it is a guide tothose elements that are likely to be useful to at least
31、some usersof most databases. It is understood that not all of the elementsof information recommended for inclusion will be available inall databases. That fact should not discourage database buildersand users from proceeding so long as the minimum essentialinformation is included (the items marked).
32、 Blank fields areacceptable where the required information is not available.8. Keywords8.1 computer; data; database; format; wearG 118 02 (2007)2TABLE 1 Recommended Data Format for Sliding Wear DataField NumberAField Name or Description Field Type or UnitBTest Identification1.1CIndividual test numbe
33、r alphanumeric1.2CDate of test date1.3CTesting organization alphanumericTest Type2.1 Standard Test Specification alphanumeric2.2CLaboratory or Field test (1) laboratory(2) field2.3CNature of sliding test (1) non-lubricated(2) lubricated2.4CTest machine descriptionDalphanumericTest Conditions3.1CLoad
34、 conditions (1) steady(2) variable3.2CLoad value N3.3 Pressure (nominal) Pa3.4CVelocity conditions (1) steady(2) variable3.5CVelocity value or range m/s3.6CTotal sliding distance m3.7 Sliding distance per cycle m3.8CTest temperature C3.9CAmbient temperature C3.10CType of motion alphanumeric3.11CCont
35、inuity of motion alphanumeric3.12CContact environment descriptionEalphanumeric3.13 Lubricated contact descriptionFalphanumeric3.14 Abrasive contact descriptionGalphanumeric3.15 Contact geometryHalphanumeric3.16 Other test information alphanumericMaterial Definitions (Specimen Pairs, A and B)4.1CMate
36、rial class, A alphanumeric4.2CMaterial subclass, A alphanumeric4.3CCommon name, A alphanumeric4.4CGrade designation, A alphanumeric4.5 Specification, A alphanumeric4.6 Form, A alphanumeric4.7 Processing treatment, A alphanumericMaterial Definitions (Specimen Pairs, A and B)Cont.4.8 Composition: name
37、, wt/vol %, A alphanumeric4.9 Additional description alphanumeric4.10 Hardness, A number, scale4.11 Density, A kg/m34.12CMaterial class, B alphanumeric4.13CMaterial subclass, B alphanumeric4.14CCommon name, B alphanumeric4.15CGrade designation, B alphanumeric4.16 Specification, B alphanumeric4.17 Fo
38、rm, B alphanumeric4.18 Processing treatment, B alphanumeric4.19 Composition: name, wt/vol %, B alphanumeric4.20 Additional description alphanumeric4.21 Hardness, B number, scale4.22 Density, B kg/m3Specimen Identifications (Specimen Pairs, A and B)5.1CSpecimen number or code, A alphanumeric5.2CSpeci
39、men shape, A alphanumeric5.3CSpecimen dimensions, A alphanumeric5.4 Specimen surface texture, A alphanumeric5.5CSpecimen number or code, B alphanumeric5.6CSpecimen shape, B alphanumeric5.7CSpecimen dimensions, B alphanumeric5.8 Specimen surface texture, B alphanumeric5.9 Specimen cleaning method alp
40、hanumeric5.10 Specimen surface production method alphanumericTest Results6.1CWear volume loss, A mm36.2 Wear mass loss, A gG 118 02 (2007)3APPENDIXES(Nonmandatory Information)X1. EXAMPLE OF USE OF GUIDE FOR DATA FROM A CROSSED-CYLINDERWEAR TEST (TEST METHOD G83)X1.1 Table X1.1 presents this informat
41、ion in tabular form.TABLE X1.1 Example of Use of Guide for Data from a Crossed-Cylinder Wear TestField Number Field Name Value/EntryTest Identification1.1 Individual test number RCC1092 11.2 Date of test 10-30-921.3 Testing organization COMPANY, unitTest Type2.1 Standard Test Specification Test Meth
42、od G832.2 Laboratory or Field test laboratory2.3 Nature of sliding test non-lubricated2.4 Test machine description NAME crossed-cyl in accordance with TestMethod G83Test Conditions3.1 Load conditions steady3.2 Load value 36.4N3.3 Pressure (nominal)3.4 Velocity conditions steady3.5 Velocity value or
43、range 0.066 m/s3.6 Total sliding distance 399 m3.7 Sliding distance per cycle3.8 Test temperature 24 C3.9 Ambient temperature 24 C3.10 Type of motion rotating3.11 Continuity of motion steady3.12 Contact environment description laboratory air, 41 % RH3.13 Other test information solid lubricant coatin
44、gTABLE 1 ContinuedField NumberAField Name or Description Field Type or UnitB6.3 Other wear measure, A alphanumeric6.4CWear volume loss, B mm36.5 Wear mass loss, B g6.6 Other wear measure, B alphanumeric6.7 Static friction coefficient no units6.8 Kinetic friction coefficient no units6.9 Comments on t
45、est alphanumericDocumentation7.1 Type of reference (1) published(2) unpublished(3) technical committeereport(4) other7.2CLocation of reference (citation) alphanumericAField numbers are for reference only. They do not imply a necessity to include all these fields in any specific database.BIf numeric,
46、 estimated values or ranges of values may be put in parenthetically if the actual values are not known.CDenotes essential information for database construction.DA thorough description of the test machine is important for valid comparisons of data from different machines. For examples of the informat
47、ion desired in suchdescriptions, see Test Methods G77, G83, G99. Reference to published descriptions of the test machine is additionally desirable.EA complete description of the contact environment is essential, for example, humidity level, gases present, and so forth.FIndicate the type and describe
48、 the fluid present; describe any chemical additives present; for example: base oil: mineral, 110 cSt at 100C viscosity; additives: VIimprover, detergent, dispersant.GIndicate the type of abrasive, grit size, or range, fixed or loose, bonding material, abrasive flow rate, fluids present, and so forth
49、: for example: water slurry with 25volume % AFS test sand, size 50/+70 sieve size. (See Test Methods G65, G75, G 105, G 132 for details of abrasive tests). NoteWear debris is not to be describedin this field.HIndicate the shape/size: for example: hemispherical 0.5 mm radius pin vs flat, unless as specified in a standard test.G 118 02 (2007)4TABLE X1.1 ContinuedField Number Field Name Value/EntryMaterial Definitions (Specimen Pairs, A and B)4.1 Material class, A polymer4.2 Material subclass, A unfilled4.3 Common name, A PTFE4.4 Grade designation,
