DIN EN ISO 14577-3-2015 Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 3 Calibration of reference blocks (ISO 14577-3 2015) German .pdf

1、November 2015 English price group 10No 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 77.040.10!%GN“2364327www.din.de

2、DIN EN ISO 14577-3Metallic materials Instrumented indentation test for hardness and materials parameters Part 3: Calibration of reference blocks (ISO 14577-3:2015);English version EN ISO 14577-3:2015,English translation of DIN EN ISO 14577-3:2015-11Metallische Werkstoffe Instrumentierte Eindringprfu

3、ng zur Bestimmung der Hrte und anderer Werkstoffparameter Teil 3: Kalibrierung von Referenzproben (ISO 14577-3:2015);Englische Fassung EN ISO 14577-3:2015,Englische bersetzung von DIN EN ISO 14577-3:2015-11Matriaux mtalliques Essai de pntration instrument pour la dtermination de la duret et de param

4、tres des matriaux Partie 3: talonnage des blocs de rfrence (ISO 14577-3:2015);Version anglaise EN ISO 14577-3:2015,Traduction anglaise de DIN EN ISO 14577-3:2015-11SupersedesDIN EN ISO 14577-3:2003-05www.beuth.deDocument comprises 16 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the Germ

5、an-language original shall be considered authoritative.11.15 DIN EN ISO 14577-3:2015-11 2 A comma is used as the decimal marker. National foreword This document (EN ISO 14577-3:2015) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 3 “Hardness testi

6、ng” (Secretariat: DIN, Germany) in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” (Secretariat: AFNOR, France) in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement). The responsible German body in

7、volved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-01-41 AA Hrteprfung fr Metalle. EN ISO 14577 consists of the following parts, under the general title Metallic materials Instrumented indentation test for hardness a

8、nd materials parameters: Part 1: Test method Part 2: Verification and calibration of testing machines Part 3: Calibration of reference blocks Part 4: Test method for metallic and non-metallic coatings The DIN Standards corresponding to the International Standards referred to in this document are as

9、follows: ISO 376 DIN EN ISO 376 ISO 6507-3 DIN EN ISO 6507-3 ISO 4287 DIN EN ISO 4287 ISO 14577-1 DIN EN ISO 14577-1 ISO 14577-2 DIN EN ISO 14577-2 ISO 14577-4 DIN EN ISO 14577-4 Amendments This standard differs from DIN EN ISO 14577-3:2003-05 as follows: a) the standard has been brought into line w

10、ith the state of the art; b) the standard has been editorially revised. Previous editions DIN 50359-3: 1999-04 DIN EN ISO 14577-3: 2003-05 DIN EN ISO 14577-3:2015-11 3 National Annex NA (informative) Bibliography DIN EN ISO 376, Metallic materials Calibration of extensometer systems used in uniaxial

11、 testing DIN EN ISO 6507-3, Metallic materials Vickers hardness test Part 3: Calibration of reference blocks DIN EN ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters DIN EN ISO 14577-1, Metallic materials Instrumented

12、 indentation test for hardness and materials parameters Part 1: Test method DIN EN ISO 14577-2, Metallic materials Instrumented indentation test for hardness and materials parameters Part 2: Verification and calibration of testing machines DIN EN ISO 14577-4, Metallic materials Instrumented indentat

13、ion test for hardness and materials parameters Part 4: Test method for metallic and non-metallic coatings DIN EN ISO 14577-3:2015-11 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14577-3 July 2015 ICS 77.040.10 Supersedes EN ISO 14577-3:2002English Versi

14、on Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 3: Calibration of reference blocks (ISO 14577-3:2015) Matriaux mtalliques - Essai de pntration instrument pour la dtermination de la duret et de paramtres des matriaux - Partie 3: talonnage des blocs d

15、e rfrence (ISO 14577-3:2015) Metallische Werkstoffe - Instrumentierte Eindringprfung zur Bestimmung der Hrte und anderer Werkstoffparameter - Teil 3: Kalibrierung von Referenzproben (ISO 14577-3:2015)This European Standard was approved by CEN on 16 April 2015. CEN members are bound to comply with th

16、e 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 obtained on application to the CEN-CENELEC Managemen

17、t 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-CENELEC Management Centre has the same status

18、as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, N

19、etherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All

20、 rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14577-3:2015 EContents Page European foreword 3Introduction . 4 1 Scope 5 2 Normative references . 5 3 Manufacture of reference blocks 5 4 Calibrating machine 6 4.1 General 6 4.2 Calibra

21、tion of the test force 6 4.3 Verification of the indenter . 7 4.3.1 General 7 4.3.2 Vickers indenter . 7 4.3.3 Berkovich, modified Berkovich, corner cube indenters, hardmetal ball indenters, and spherical tipped conical indenters . 8 4.4 Calibration of the displacement measuring device . 8 4.5 Verif

22、ication of the testing cycle . 9 5 Calibration procedure 9 6 Number of indentations . 9 7 Uniformity of the reference blocks . 9 8 Marking . 10 9 Validity . 11 Bibliography . 12 EN ISO 14577-3:2015 (E)2 DIN EN ISO 14577-3:2015-11 European foreword This document (EN ISO 14577-3:2015) has been prepare

23、d by Technical Committee ISO/TC 164 “Mechanical testing of metals” in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either

24、 by publication of an identical text or by endorsement, at the latest by January 2016, and conflicting national standards shall be withdrawn at the latest by January 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or

25、 CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 14577-3:2002. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri

26、a, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,

27、 Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14577-3:2015 has been approved by CEN as EN ISO 14577-3:2015 without any modification. EN ISO 14577-3:2015 (E) 3 DIN EN ISO 14577-3:2015-11 IntroductionHardness has typically been defined as the resistance of a material

28、to permanent penetration by another harder material. The results obtained when performing Rockwell, Vickers, and Brinell tests are determined after the test force has been removed. Therefore, the effect of elastic deformation under the indenter has been ignored.ISO 14577 (all parts) has been prepare

29、d to enable the user to evaluate the indentation of materials by considering both the force and displacement during plastic and elastic deformation. By monitoring the complete cycle of increasing and removal of the test force, hardness values equivalent to traditional hardness values can be determin

30、ed. More significantly, additional properties of the material such as its indentation modulus and elasto-plastic hardness can also be determined. All these values can be calculated without the requirement to measure the indent optically. Furthermore, by a variety of techniques, the instrumented inde

31、ntation test allows to record hardness and modulus depth profiles within a, probably complex, indentation cycle.ISO 14577 (all parts) has been written to allow a wide variety of post test data analysis.EN ISO 14577-3:2015 (E) 4 DIN EN ISO 14577-3:2015-11 1 ScopeThis part of ISO 14577 specifies a met

32、hod for the calibration of reference blocks to use for the indirect verification of testing machines for the instrumented indentation test as specified in ISO 14577-2:2015.NOTE The reference blocks can be calibrated in accordance with the field of application of the testing machine or with the mater

33、ials parameters which are being determined.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of th

34、e referenced document (including any amendments) applies.ISO 376, Metallic materials Calibration of force-proving instruments used for the verification of uniaxial testing machinesISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface textur

35、e parametersISO 14577-1:2015, Metallic materials Instrumented indentation test for hardness and materials parameters Part 1: Test methodISO 14577-2:2015, Metallic materials Instrumented indentation test for hardness and materials parameters Part 2: Verification and calibration of testing machines3 M

36、anufacture of reference blocks3.1 The block shall be specially prepared and the attention of the manufacturer drawn to the requirement to use a manufacturing process that gives the necessary homogeneity, uniformity, and stability of structure.3.2 Each block being calibrated shall be of a thickness n

37、ot less than 2 mm for the nano range, not less than 5 mm for the micro, and not less than 16 mm for the macro range.If it is required by the manufacturing process, the thickness of the reference blocks can be smaller.3.3 The reference blocks shall be free from magnetic forces. It is recommended that

38、 the manufacturers ensure that the blocks, if of steel, are demagnetized at the end of the manufacturing process.3.4 The reference block shall be constructed such that it can be mounted in the testing machine within the tilt limits specified in ISO 14577-1:2015.EN ISO 14577-3:2015 (E) 5 DIN EN ISO 1

39、4577-3:2015-11 NOTE If the reference block is mounted on its bottom, this condition is valid if the maximum deviation in flatness of the test and support faces does not exceed 5 m in 50 mm and the maximum error in parallelism does not exceed 10 m in 50 mm.3.5 The test surface shall be free from scra

40、tches that interfere with the measurement of the indentations. Indentations between scratches are permitted.For the macro and micro range, the surface roughness, Ra, shall not exceed 50 nm and 10 nm respectively for the test surface, and 0,8 m for the support face, the sampling length, l, shall be 0

41、,80 mm (see ISO 4287).For the nano range, the surface roughness, Ra, shall not exceed 10 nm. It is recommended that the Ra be less than 1 nm to be of practical use for calibration purpose. If measured with an atomic-force-microscope (AMF), the sampling length, l, shall be 10 m.NOTE At the nano range

42、, it is important to consider the spatial wavelength of the roughness as well as the amplitude.3.6 In order to check that no material has been subsequently removed from the reference block, its thickness at the time of calibration shall be marked on it to the nearest 10 m or an identifying mark shal

43、l be made on the test surface (see Clause 8).For some nano range reference materials, it can be necessary to prepare a surface before the test in a manner that removes surface layers. In this case, a method such as a mark of defined depth should be used to reveal when a significant amount of materia

44、l has been removed. Certification for nano range indentations can cover reference block depths much less than 10 m.4 Calibrating machine4.1 GeneralIn addition to fulfilling the general conditions specified in ISO 14577-2:2015, the calibrating machine shall also meet the requirements listed in 4.2 to

45、 4.5. The calibrating machine shall be calibrated and verified directly at intervals not exceeding 24 months. Calibration and verification involves the following:a) calibration of the test force;b) verification of the indenter;c) calibration of the displacement measuring system;d) verification of th

46、e testing cycle.The instruments used for verification and calibration shall be traceable to the National Standards, as far as available.4.2 Calibration of the test forceThe test force shall be calibrated according to ISO 14577-2:2015, 4.2, to a tolerance given in the following:a) 0,25 % for the macr

47、o range;b) 0,5 % for the micro range;c) the larger of 0,5 % or 10 N for the nano range.The force shall be measured with elastic force-proving instruments of class 0,5 or better in accordance with ISO 376 or by another method having the same accuracy.EN ISO 14577-3:2015 (E) 6 DIN EN ISO 14577-3:2015-

48、11 4.3 Verification of the indenter4.3.1 GeneralThe certified measured values (e.g. angle, radius, etc.) of the indenter shall be used in all calculations and, where indentation depth is 6 m, the certified indenter area function with the relative uncertainty of less than 5 % shall be used.In the nan

49、o and low micro ranges (h 1 000 nm), the tolerances on the indenter angles are not normally achieved. The sharpness of the tip is likely to have the most significant impact on the measurement. It is difficult to determine the radius of curvature of an indenter to better than 10 nm as this is likely the radius of an AFM probe. Indentation methods using certified indentation modulus reference blocks are