DIN EN 1071-13-2010 Advanced technical ceramics - Methods of test for ceramic coatings - Part 13 Determination of wear rate by the pin-on-disk method German version EN 1071-13 2010.pdf

1、July 2010 Translation by DIN-Sprachendienst.English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 8

2、1.060.30!$izQ“1708746www.din.deDDIN EN 1071-13Advanced technical ceramics Methods of test for ceramic coatings Part 13: Determination of wear rate by the pin-on-disk methodEnglish translation of DIN EN 1071-13:2010-07Hochleistungskeramik Verfahren zur Prfung keramischer Schichten Teil 13: Bestimmung

3、 der Verschleirate mittels Stift-Scheibe-PrfungEnglische bersetzung von DIN EN 1071-13:2010-07Cramiques techniques avances Mthodes dessai pour revtements cramiques Partie 13: Dtermination du taux dusure selon la mthode pin-on-diskTraduction anglaise de DIN EN 1071-13:2010-07www.beuth.deDocument comp

4、rises pagesIn case of doubt, the German-language original shall be considered authoritative.2507.10 DIN EN 1071-13:2010-07 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 184 “Advanced technical ceramics”, Working Group WG 5 “Cer

5、amic coatings” (Secretariat: BSI, United Kingdom). At present a DIN committee does not exist for this standard since the parties concerned have not shown any interest in work on the subject. The Normenausschuss Materialprfung (Materials Testing Standards Committee) is obliged to publish the standard

6、, however, as the subject falls in its domain. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 31-0 DIN 1313 and DIN 1338 ISO 1101 DIN EN ISO 1101 ISO 4288 DIN EN ISO 4288 National Annex NA (informative) Bibliography DIN 1313, Quantitie

7、s DIN 1338, Writing and typesetting of formulae DIN EN ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out DIN EN ISO 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for t

8、he assessment of surface texture 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1071-13 March 2010 ICS 81.060.30 English Version Advanced technical ceramics - Methods of test for ceramic coatings - Part 13: Determination of wear rate by the pin-on-disk method Cramiques techniques avances - M

9、thodes dessai pour revtements cramiques - Partie 13 : Dtermination du taux dusure selon la mthode pin-on-disk Hochleistungskeramik - Verfahren zur Prfung keramischer Schichten - Teil 13: Bestimmung der Verschleirate mittels Stift-Scheibe-Prfung This European Standard was approved by CEN on 30 Januar

10、y 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtai

11、ned on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Managem

12、ent Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlan

13、ds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in a

14、ny form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1071-13:2010: EEN 1071-13:2010 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Significance and use .65 Principle 66 Apparatus .66.1 Pin-on-disk method testing

15、apparatus 66.2 Test apparatus design requirements .76.3 Instruments for determining the volume loss 86.4 Operating environment .87 Preparation of test pieces .87.1 Substrate material and preparation .87.2 Coating deposition 97.3 Post-coating preparation 97.4 Cleaning . 108 Testing procedure. 108.1 P

16、reliminary setup 108.2 Producing the wear track and scar . 118.3 Evaluation of wear and measurement of wear scars 118.4 Calculation of test results 149 Repeatability and limits 1510 Report 16Annex A (informative) Methods for the determination of coating properties likely to be relevant to coating pe

17、rformance in a pin-on-disk wear test 18A.1 Relevant properties 18A.2 Phase composition and preferred orientation. 18A.3 Residual stress . 18A.4 Hardness 18Annex B (informative) Determination of volume loss from the pin using profilometry 19Annex C (informative) Determination of wear of coated disk b

18、y ball crater technique 20Bibliography . 23DIN EN 1071-13:2010-07 EN 1071-13:2010 (E) 3 Foreword This document (EN 1071-13:2010) has been prepared by Technical Committee CEN/TC 184 “Advanced technical ceramics”, the secretariat of which is held by BSI. This European Standard shall be given the statu

19、s of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2010, and conflicting national standards shall be withdrawn at the latest by September 2010. Attention is drawn to the possibility that some of the elements of this document may be the

20、subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. EN 1071, Advanced technical ceramics Methods of test for ceramic coatings, consists of the following 13 parts: Part1: Determination of coating thickness by contact probe filomete

21、r Part 2: Determination of coating thickness by the crater grinding method Part 3: Determination of adhesion and other mechanical failure modes by a scratch test Part 4: Determination of chemical composition by electron probe microanalysis (EPMA) Part 5: Determination of porosity (withdrawn) Part 6:

22、 Determination of the abrasion resistance of coatings by a micro-abrasion wear test Part 7: Determination of hardness and Youngs modulus by instrumented indentation (withdrawn) Part 8: Rockwell indentation test for evaluation of adhesion Part 9: Determination of fracture strain Part 10: Determinatio

23、n of coating thickness by cross sectioning Part 11: Determination of internal stress by the Stoney formula Part 12: Reciprocating wear test Part 13: Determination of wear rate by the pin-on-disk method Part 7 was a Technical Specification and Parts 8 to 11 are Technical Specifications. According to

24、the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv

25、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 1071-13:2010-07 EN 1071-13:2010 (E) 4 Introduction The determination of the wear resistance of thin ceramic coatings used in sliding contact

26、s is of high importance in several industrial fields such as stamping, moulding, blanking and in many situations where two mechanical components slide on each other. This part of EN 1071 describes a method for evaluating the wear of ceramic coatings by use of a test in which a flat or spherically en

27、ded pin is brought, under load, into contact with a flat disk and the two are set in relative motion such that the pin describes a circular path on the flat surface of the disk. Depending on the information required, either the disk or pin or both may be coated with the material under test, with the

28、 other member of the couple being selected for its relevance to the tribosystem under evaluation. Wear is determined by weight loss, by profilometry, by linear measurement or by a combination of these. Testing may be carried out under dry or lubricated conditions. Where suitable instrumentation is a

29、vailable, the test can provide important information about the friction generated in the system. In addition to providing data on the frictional interaction in the system, monitoring of the friction can, by detecting changes in the level or trend of the friction force, provide important information

30、about changes occurring during the test, e.g. removal or fracture of the coating, changes in wear mechanisms, etc. The test for use with bulk materials sliding under non-lubricated conditions is well described in 1. This standard identifies the basic equipment requirements and the test critical para

31、meters for testing ceramic coatings, and provides for appropriate operating procedures and measurement protocols to ensure their proper control. In addition, it provides for consistency in the analysis of data and in the treatment of errors. This part of EN 1071 complements parts 6 2 and 12 3, which

32、 describe techniques for micro-scale abrasion wear testing and reciprocating wear testing of ceramic coatings respectively. DIN EN 1071-13:2010-07 EN 1071-13:2010 (E) 5 1 Scope 1.1 This European Standard describes a method for evaluating the wear of ceramic coatings by use of a test in which a flat

33、or spherically ended pin is brought, under load, into contact with the flat surface of a disk and the two are set in relative motion such that the pin describes a circular path on the disk. Depending on the conditions being simulated, either the pin or disk or both may be coated with the material un

34、der test, with the other member of the couple being selected for its relevance to the system under evaluation. 1.2 Where suitable equipment is available, the test may be used to determine the friction generated in the sliding contact. 1.3 The method is suitable for evaluating coatings in the thickne

35、ss range from 1 m to more than 100 m, and with suitable choice of conditions might also be applicable to testing thinner coatings. 1.4 Testing may be under either dry or lubricated conditions. However, the test is not designed for evaluating the properties of lubricants except insofar as they affect

36、 the wear behaviour of the materials being tested. Related methods for testing lubricants using a reciprocating motion are given in references 4 6. 1.5 Testing a materials couple under a range of loading conditions might provide information about the adhesive and/or cohesive strength of the coating,

37、 in addition to its wear behaviour. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)

38、 applies. EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2005) ISO 31-0, Quantities and units Part 0: General principles 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 volume

39、wear rate volume wear coefficient specific wear rate volume of material removed from a surface in a sliding distance of 1 m under a normal load of 1 N 3.2 mass wear rate mass wear coefficient mass of material removed from a surface in a sliding distance of 1 m under a normal load of 1 N 3.3 instanta

40、neous coefficient of friction instantaneous value of the friction force divided by the instantaneous value of the applied load NOTE This is often approximated to the instantaneous value of the friction force divided by the mean applied load. DIN EN 1071-13:2010-07 EN 1071-13:2010 (E) 6 4 Significanc

41、e and use This standard gives guideline on conducting sliding wear and friction tests in a pin-on-disk configuration. It can be used to determine the wear resistance and friction generated in sliding contacts between a ceramic coating and a suitable counterpart (see below). Pin-on-disk wear testing

42、can be used to simulate the operating conditions in different sliding contacts of technological significance. In the last few years there has been an increasing interest in the use of wear and friction reducing ceramic coatings for such contacts. This European Standard has been developed to provide

43、guidance on the use and interpretation of the test method for evaluating the potential performance of ceramic coatings in these types of contacts and to provide complementary data to that obtained from other wear test methods, e.g. micro-scale abrasion wear testing 2 and reciprocating wear testing 3

44、. It should be noted that there are many parameters in sliding contacts that affect the magnitude of friction and wear. The aim of performing any wear test is to simulate, as closely as possible, the conditions that occur in the real application. As the deviation between the test conditions and the

45、application conditions becomes larger, the test results will become less relevant. To add confidence to the test results, the appearance of the worn surfaces of the test samples should be compared with those of the worn surfaces of actual components to ensure that similar wear mechanisms have taken

46、place in both cases. NOTE Although it is relatively easy in a pin-on-disk wear test to reproduce the contact stress experienced in a specific tribological contact, it might be necessary to use additional heating to ensure that the contact temperature approximates to that of the contact being simulat

47、ed. The recommended test conditions in this standard should be used when the objective of the testing is to compare the performance of materials in the absence of well defined application conditions. 5 Principle The test consists in sliding a loaded pin against a flat disk such that the pin describe

48、s a circular path on the disk, and determining the wear of one or both. Depending on the wearing system being simulated, either the pin or disk or both may be coated with the ceramic coating under test, and testing may be either with or without lubrication. The pin contact face may have either a fla

49、t or rounded geometry. If the former is chosen, great care is necessary in order to ensure that the contact faces of pin and disk both lie in the same plane, as any variation from this will produce substantially different contact conditions from those expected for a plane contact. The high contact stress generated by misalignment can be particularly damaging to brittle ceramic materials and can lead to spurious and un-reproducible