EN ISO 6507-1-2018 en Metallic Materials - Vickers Hardness Test - Part 1 Test Method.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Metallic materials Vickers hardness testPart 1: Test method (ISO 6507-1:2018)BS EN ISO 6507-1:2018National forewordThis British Standard is the UK implementation of EN ISO 6507-1:2018. It is identical to ISO 6507-1:2018

2、. It supersedes BS EN ISO 6507-1:2005, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/101/5, Indentation hardness testing.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not p

3、urport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 84393 8ICS 77.040.10Compliance with a British Standard cannot confer immunity from legal oblig

4、ations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 6507-1:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 65071March 2018ICS

5、 77.040.10 Supersedes EN ISO 6507-1:2005EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCENCENELEC Management Centre: Avenue Marnix 17, B1000 Brussels 2018 CEN Ref. No. EN ISO 6507-1:2018: EAll rights of exploitation in any form and by any means rese

6、rved worldwide for CEN national MembersMetallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1:2018)Matriaux mtalliques - Essai de duret Vickers - Partie 1: Mthode dessai (ISO 6507-1:2018)Metallische Werkstoffe - Hrteprfung nach Vickers - Teil 1: Prfverfahren (ISO 6507-1:2018)Th

7、is European Standard was approved by CEN on 18 January 2018.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 refere

8、nces concerning such national 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 m

9、ember into its own language 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, F

10、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 65071:2018 (E)European forewordThis document (EN ISO

11、 6507-1:2018) 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 of which is held by AFNOR.This European Standard shall be given the status o

12、f a national standard, either by publication of an identical text or by endorsement, at the latest by September 2018, and conflicting national standards shall be withdrawn at the latest by September 2018.Attention is drawn to the possibility that some of the elements of this document may be the subj

13、ect of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN ISO 6507-1:2005.According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European St

14、andard: 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, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Sl

15、ovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 6507-1:2018 has been approved by CEN as EN ISO 6507-1:2018 without any modification.2BS EN ISO 6507-1:2018ISO 65071:2018Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Princ

16、iple 25 Symbols and designations 25.1 Symbols and designations used in this document . 25.2 Designation of hardness number 36 Testing machine 36.1 Testing machine . 36.2 Indenter . 36.3 Diagonal measuring system . 47 Test piece 47.1 Test surface 47.2 Preparation 47.3 Thickness . 47.4 Tests on curved

17、 surfaces . 47.5 Support of unstable test pieces . 58 Procedure. 58.1 Test temperature . 58.2 Test force 58.3 Periodic verification . 58.4 Test piece support and orientation . 58.5 Focus on test surface 68.6 Test force application 68.7 Prevention of the effect of shock or vibration 68.8 Minimum dist

18、ance between adjacent indentations 68.9 Measurement of the diagonal length . 78.10 Calculation of hardness value 79 Uncertainty of the results 710 Test report . 8Annex A (normative) Minimum thickness of the test piece in relation to the test force and to the hardness . 9Annex B (normative) Tables of

19、 correction factors for use in tests made on curved surfaces 11Annex C (normative) Procedure for periodic checking of the testing machine, diagonal measuring system and the indenter by the user 15Annex D (informative) Uncertainty of the measured hardness values 17Annex E (informative) Vickers hardne

20、ss measurement traceability .24Annex F (informative) CCM Working group on hardness 28Annex G (informative) Adjustment of Khler illumination systems 29Bibliography .30 ISO 2018 All rights reserved iiiContents PageBS EN ISO 6507-1:2018ISO 65071:2018ForewordISO (the International Organization for Stand

21、ardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right

22、to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures us

23、ed to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules

24、of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identifie

25、d during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on th

26、e voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.h

27、tml.This document was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 3, Hardness testing. This fourth edition cancels and replaces the third edition (ISO 6507-1:2005), which has been technically revised.The main changes compared to the previous edition are

28、as follows: requirements for testing hardmetals and other cemented carbides have been added; all references of indentation diagonals, 0,020 mm, have been removed; resolution requirements for the measuring system have been defined; the lower test force limit of the Vickers microhardness test has been

29、 expanded to 0,009 807 N; requirements for the periodic (weekly or daily) verifications of the testing machine are normative, and the maximum permissible bias value has been revised. Requirements for the maximum permissible error in measuring a reference indentation have been revised; recommendation

30、s for inspection and monitoring of the indenter have been added; requirements have been added for the approach velocity of the indenter prior to contact with the sample surface; the timing requirements for the test force application and the duration at maximum test force have been revised to indicat

31、e target time values; Figure 2, which illustrates the requirements for the minimum distance between indentations, has been added, but the requirements have not changed; requirements have been added to the test report for reporting the test date and any hardness conversion method used;iv ISO 2018 All

32、 rights reservedBS EN ISO 6507-1:2018ISO 65071:2018 Annex D has been revised; Annexes E, F and G have been added concerning Vickers hardness measurement traceability, the CCM Working group on hardness and adjustment of Khler illumination systems.A list of all parts in the ISO 6507 series can be foun

33、d on the ISO website. ISO 2018 All rights reserved vBS EN ISO 6507-1:2018This page deliberately left blankMetallic materials Vickers hardness test Part 1: Test method (ISO 65071:2018)1 ScopeThis document specifies the Vickers hardness test method for the three different ranges of test force for meta

34、llic materials including hardmetals and other cemented carbides (see Table 1).Table 1 Ranges of test forceRanges of test force,FNHardness symbol DesignationF 49,03 HV 5 Vickers hardness test1,961 F 49,03 HV 0,2 to HV 5 Low-force Vickers hardness test0,009 807 F 1,961 HV 0,001 to HV 0,2 Vickers micro

35、hardness testThe Vickers hardness test is specified in this document for lengths of indentation diagonals between 0,020 mm and 1,400 mm. Using this method to determine Vickers hardness from smaller indentations is outside the scope of this document as results would suffer from large uncertainties du

36、e to the limitations of optical measurement and imperfections in tip geometry.A periodic verification method is specified for routine checking of the testing machine in service by the user.For specific materials and/or products, particular International Standards exist.2 Normative referencesThe foll

37、owing documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 65

38、07-2:2017, Metallic materials Vickers hardness test Part 2: Verification and calibration of testing machinesISO 6507-3, Metallic materials Vickers hardness test Part 3: Calibration of reference blocks3 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain ter

39、minological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obpINTERNATIONAL STANDARD ISO 65071:2018 ISO 2018 All rights reserved 1BS EN ISO 6507-1:2018ISO 65071:2

40、0184 PrincipleA diamond indenter, in the form of a right pyramid with a square base and with a specified angle between opposite faces at the vertex, is forced into the surface of a test piece followed by measurement of the diagonal length of the indentation left in the surface after removal of the t

41、est force, F (see Figure 1).Figure 1 Principle of the test, geometry of indenter and Vickers indentationThe Vickers hardness is proportional to the quotient obtained by dividing the test force by the area of the sloped surface of indentation, which is assumed to be a right pyramid with a square base

42、 and having at the vertex the same angle as the indenter.NOTE 1 A right pyramid has its apex aligned with the centre of the base.NOTE 2 As applicable, this document has adopted hardness test parameters as defined by the Working Group on Hardness (CCM-WGH) under the framework of the International Com

43、mittee of Weights and Measures (CIPM) Consultative Committee for Mass and Related Quantities (CCM) (see Annex F).5 Symbols and designations5.1 Symbols and designations used in this documentSee Table 2 and Figure 1.2 ISO 2018 All rights reservedBS EN ISO 6507-1:2018ISO 65071:2018Table 2 Symbols and d

44、esignationsSymbol Designation Mean angle between the opposite faces at the vertex of the pyramidal indenter (nominally 136) (see Figure 1)F Test force, in newtons (N)d Arithmetic mean, in millimetres, of the two diagonal lengths d1and d2(see Figure 1)Vickers hardness =Test force (kgf)Surface area of

45、 indentation (mm )2=1gnTest Force(N)Surfaceareaofindentation(mm)2HV = =12212222gFdgFdnn/sinsinFor the nominal angle = 136,Vickers hardness 0 18912,FdNOTE 1 Standard acceleration due to gravity, gn= 9,806 65 m/s2which is the conversion factor from kgf to NTo reduce uncertainty, the Vickers hardness m

46、ay be calculated using the actual mean indenter angle, .5.2 Designation of hardness numberVickers hardness, HV, is designated as shown in the following example.6 Testing machine6.1 Testing machineThe testing machine shall be capable of applying a predetermined force or forces within the desired rang

47、e of test forces, in accordance with ISO 6507-2.6.2 IndenterThe indenter shall be a diamond in the shape of a right pyramid with a square base, as specified in ISO 6507-2. ISO 2018 All rights reserved 3BS EN ISO 6507-1:2018ISO 65071:20186.3 Diagonal measuring systemThe diagonal measuring system shal

48、l satisfy the requirements in ISO 6507-2.Magnifications should be provided so that the diagonal can be enlarged to greater than 25 % but less than 75 % of the maximum possible optical field of view. Many objective lenses are nonlinear towards the edge of the field of view.A diagonal measuring system

49、 using a camera for measurement can use 100 % of the cameras field of view provided it is designed to consider field of view limitations of the optical system.The resolution required of the diagonal measuring system depends on the size of the smallest indentation to be measured and shall be in accordance with Table 3. In determining the resolution of the measuring system, the resolution of the microscope optics, the digital resolution of the measuring scale an