DIN EN ISO 14577-1-2015 Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 1 Test method (ISO 14577-1 2015) German version EN ISO 14577.pdf

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1、November 2015 English price group 20No 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!%GR+“2364708www.din.d

2、eDIN EN ISO 14577-1Metallic materials Instrumented indentation test for hardness and materials parameters Part 1: Test method (ISO 14577-1:2015);English version EN ISO 14577-1:2015,English translation of DIN EN ISO 14577-1:2015-11Metallische Werkstoffe Instrumentierte Eindringprfung zur Bestimmung d

3、er Hrte und anderer Werkstoffparameter Teil 1: Prfverfahren (ISO 14577-1:2015);Englische Fassung EN ISO 14577-1:2015,Englische bersetzung von DIN EN ISO 14577-1:2015-11Matriaux mtalliques Essai de pntration instrument pour la dtermination de la duret et de paramtres des matriaux Partie 1: Mthode des

4、sai (ISO 14577-1:2015);Version anglaise EN ISO 14577-1:2015,Traduction anglaise de DIN EN ISO 14577-1:2015-11SupersedesDIN EN ISO 14577-1:2003-05www.beuth.deDocument comprises 53 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.

5、10.15 DIN EN ISO 14577-1:2015-11 2 A comma is used as the decimal marker. National foreword This document (EN ISO 14577-1:2015) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 3 “Hardness testing” (Secretariat: DIN, Germany) in collaboration with T

6、echnical 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 involved in its preparation was the DIN-Normenausschuss M

7、aterialprfung (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 and materials parameters: Part 1: Test method Part 2

8、: 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 follows: ISO 4287 DIN EN ISO 4287 ISO 14577-2 DIN E

9、N ISO 14577-2 ISO 14577-3 DIN EN ISO 14577-3 ISO 14577-4 DIN EN ISO 14577-4 Amendments This standard differs from DIN EN ISO 14577-1:2003-05 as follows: a) detailed requirements regarding sample cleaning have been included; b) the differential Martens hardness has been introduced as a parameter; c)

10、normative requirements have been specified for the determination and use of a variable epsilon; d) normative requirements have been specified for the calculation and use of radial displacement correction; e) requirements have been specified regarding the determination and correction of drift; f) det

11、ermination of the measurement uncertainty of the area function and of zero point assignation have been included; DIN EN ISO 14577-1:2015-11 3 g) requirements have been specified regarding the determination of measurement uncertainty of the area function and of zero point assignation; h) requirements

12、 have been specified regarding the determination of the measurement uncertainty of HITand EIT; i) the standard has been editorially revised. Previous editions DIN 50359-1: 1997-10 DIN EN ISO 14577-1: 2003-05 DIN EN ISO 14577-1:2015-11 4 National Annex NA (informative) Bibliography DIN EN ISO 4287, G

13、eometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters 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 145

14、77-3, Metallic materials Instrumented indentation test for hardness and materials parameters Part 3: Calibration of reference blocks DIN EN ISO 14577-4, Metallic materials Instrumented indentation test for hardness and materials parameters Part 4: Test method for metallic and non-metallic coatings E

15、UROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14577-1 July 2015 ICS 77.040.10 Supersedes EN ISO 14577-1:2002 English Version Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 1: Test method (ISO 14577-1:2015) Matriaux mtalliques - Essai de pntr

16、ation instrument pour la dtermination de la duret et de paramtres des matriaux - Partie 1: Mthode dessai (ISO 14577-1:2015) Metallische Werkstoffe - Instrumentierte Eindringprfung zur Bestimmung der Hrte und anderer Werkstoffparameter - Teil 1: Prfverfahren (ISO 14577-1:2015) This European Standard

17、was approved by CEN on 16 April 2015. 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 n

18、ational standards may be obtained on application to the CEN-CENELEC 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 la

19、nguage and notified to the CEN-CENELEC Management 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, Former Yugoslav Republic of Macedonia, France, Germany, Gree

20、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T EUR O P EN D E NOR M A L I S ATI O N EUR O P I S C H

21、ES KOM I T E E F R NOR M UNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14577-1:2015 E European foreword .3Introduction 41 Scope . 52 Normative referenc

22、es 53 Symbols and designations 64 Principle 85 Testing machine 86 Test piece 97 Procedure. 98 Uncertainty of the results . 129 Test report 13Annex A (normative) Materials parameters determined from the force/indentation depth data set .15Annex B (informative) Types of control use for the indentation

23、 process .28Annex C (normative) Machine compliance and indenter area function .29Annex D (informative) Notes on diamond indenters 31Annex E (normative) Influence of the test piece surface roughness on the accuracy of the results .32Annex F (informative) Correlation of indentation hardness HITto Vick

24、ers hardness .33Annex G (normative) Drift and creep rate determination 35Annex H (informative) Estimation of uncertainty of the calculated values of hardness and materials parameters .37Annex I (normative) Calculation of radial displacement correction .47Bibliography .49Contents PageDIN EN ISO 14577

25、-1:2015-11 EN ISO 14577-1:2015 (E) 2 European foreword This document (EN ISO 14577-1:2015) has been prepared 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

26、 of which is held by AFNOR. This European Standard shall be given the status of a national standard, either 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

27、 the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 14577-1:2002. According to the CEN-CENELEC Internal Regulations, the nation

28、al standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu

29、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14577-1:2015 has been approved by CEN as EN ISO 14577-1:2015 without any modification. DIN EN ISO 14577-1:2015-11

30、 EN ISO 14577-1:2015 (E) 3 IntroductionHardness has typically been defined as the resistance of a material 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, t

31、he effect of elastic deformation under the indenter has been ignored.ISO 14577 (all parts) has been prepared 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 increasi

32、ng and removal of the test force, hardness values equivalent to traditional hardness values can be determined. 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 th

33、e need to measure the indent optically. Furthermore, by a variety of techniques, the instrumented indentation 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 analy

34、sis.DIN EN ISO 14577-1:2015-11 EN ISO 14577-1:2015 (E) 4 1 ScopeThis part of ISO 14577 specifies the method of instrumented indentation test for determination of hardness and other materials parameters for the following three ranges: macro range: 2 N F 30 kN; micro range: 2 N F; h 0,2 m; nano range:

35、 h 0,2 m.For the nano range, the mechanical deformation strongly depends on the real shape of indenter tip and the calculated material parameters are significantly influenced by the contact area function of the indenter used in the testing machine. Therefore, careful calibration of both instrument a

36、nd indenter shape is required in order to achieve an acceptable reproducibility of the materials parameters determined with different machines.The macro and micro ranges are distinguished by the test forces in relation to the indentation depth.Attention is drawn to the fact that the micro range has

37、an upper limit given by the test force (2 N) and a lower limit given by the indentation depth of 0,2 m.The determination of hardness and other material parameters is given in Annex A.At high contact pressures, damage to the indenter is possible. For this reason in the macro range, hardmetal indenter

38、s are often used. For test pieces with very high hardness and modulus of elasticity, permanent indenter deformation can occur and can be detected using suitable reference materials. It is necessary that its influence on the test result be taken into account.This test method can also be applied to th

39、in metallic and non-metallic coatings and non-metallic materials. In this case, it is recommended that the specifications in the relevant standards be taken into account (see also 6.3 and ISO 14577-4).2 Normative referencesThe following documents, in whole or in part, are normatively referenced in t

40、his document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 14577-2:2015, Metallic materials Instrumented indentation test for hardness and m

41、aterials parameters Part 2: Verification and calibration of testing machinesISO/IEC Guide 98-3:2008, Uncertainty of measurement Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)DIN EN ISO 14577-1:2015-11 EN ISO 14577-1:2015 (E) 5 3 Symbols and designationsFor the purposes of t

42、his document, the symbols and designations in Table 1 shall be applied (see also Figure 1 and Figure 2).Table 1 Symbols and designationsSymbol Designation UnitAp(hc) Projected area of contact of the indenter at distance hcfrom the tip mm2As(h) Surface area of the indenter at distance h from the tip

43、mm2CITIndentation creep %CTTotal measured compliance of the contact (dh/dF tangent to the force removal curve at maximum test force)nm/mNCFInstrument compliance nm/mNCSCompliance of the contact after correction for machine compliance nm/mNEITIndentation modulus of the test piece GPaErReduced plane s

44、train modulus of the contact (combination of test piece and indenter plane strain moduli)GPaF Test force NFmaxMaximum test force Nh Indentation depth under applied test force mmhcDepth of the contact of the indenter with the test piece at FmaxmmhmaxMaximum indentation depth at FmaxmmhpPermanent inde

45、ntation depth after removal of the test force mmhrPoint of intersection of the tangent c to curve b at Fmaxwith the indentation depth-axis as identified on Figure 1mmHITIndentation hardness GPaHM Martens hardness GPaHMsMartens hardness, determined from the slope of the increasing force/indentation d

46、epth curveGPaHMdiff Martens hardness, determined from the first derivative of h vs FGPasPoissons ratio of the test piecer Radius of spherical indenter mmRITIndentation relaxation %WelastElastic reverse deformation work of indentation NmWtotalTotal mechanical work of indentation NmCone semi-angle or

47、angle of facet to the indentation axis for pyramidal indentersMaximum angle between the contact surface and the indenter for calculation of radial displacementITRatio Welast/Wtotal%NOTE 1 To avoid very long numbers, the use of multiples or sub-multiples of the units is permitted.NOTE 2 The continued

48、 use of the unit N/mm2is allowed. 1 MPa = 1 N/mm2.DIN EN ISO 14577-1:2015-11 EN ISO 14577-1:2015 (E) 6 Keya application of the test forceb removal of the test forcec tangent to curve b at FmaxFigure 1 Schematic representation of the test procedureKeya indenterb surface of residual plastic indentation in a test pie