BS-EN-ISO-14577-3-2002.pdf

BRITISH STANDARD BS EN ISO 14577-3:2002 Incorporating Corrigendum No. 1 Metallic materials Instrumented indentation test for hardness and materials parameters Part 3: Calibration of reference blocks The European Standard EN ISO 14577-3:2002 has the status of a British Standard ICS 77.040.10 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 14577-3:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 November 2002 © BSI 2 April 2003 ISBN 0 580 40790 X National foreword This British Standard is the official English language version of EN ISO 14577-3:2002. It is identical with ISO 14577-3:2002. The UK participation in its preparation was entrusted by Technical Committee ISE/NFE/4, Mechanical testing of metals, to Subcommittee ISE/NFE/4/5, Indentation hardness testing, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Instrumented indentation testing is a developing test method which offers an opportunity to provide information about properties of the sample under test in addition to a measurement of its hardness. Accordingly this standard has been prepared so that a unified approach may be made to the application and further development of this method. This standard covers a wide range of indenter geometries and applied test forces, including those corresponding to all conventional hardness scales. In principle it is possible to compare the hardness values obtained to traditional scales and, for Vickers indenter geometries, the relationship of the test results to conventional hardness test values is given. The aim of this standard is to provide tests that are not possible by conventional methods. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 9, the Annex ZA page, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 14431 Corrigendum No. 1 2 April 2003Replacing the EN ISO foreword page and incorporating the Annex ZA page Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 14577-3 October 2002 ICS 77.040.10 English version Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 3: Calibration of reference blocks (ISO 14577-3:2002) Matériaux métalliques - Essai de pénétration instrumenté pour la détermination de la dureté et de paramètres des matériaux - Partie 3: Etalonnage des blocs de référence (ISO 14577-3:2002) Metallische Werkstoffe - Instrumentierte Eindringprüfung zur Bestimmung der Härte und anderer Werkstoffparameter - Teil 3: Kalibrierung von Referenzproben (ISO 14577- 3:2002) This European Standard was approved by CEN on 9 September 2002. 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 obtained on application to the 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14577-3:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CORRECTED 2003-03-05 Foreword This document (EN ISO 14577-3:2002) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals“ in collaboration with Technical Committee ECISS/TC 1 “Steel - Mechanical testing“, the secretariat 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 April 2003, and conflicting national standards shall be withdrawn at the latest by April 2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 14577-3:2002 has been approved by CEN as EN ISO 14577-3:2002 without any modifications. NOTE Normative references to International Standards are listed in Annex ZA (normative). EN ISO 145773:2002 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 14577-3:2002(E) INTERNATIONAL STANDARD ISO 14577-3 First edition 2002-10-01 Metallic materials Instrumented indentation test for hardness and materials parameters Part 3: Calibration of reference blocks Matériaux métalliques Essai de pénétration instrumenté pour la détermination de la dureté et de paramètres des matériaux Partie 3: Étalonnage des blocs de référence EN ISO 145773:2002 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 145773:2002 ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS-77541 O3:(2002E) I ©SO 2002 All irthgs ersedevr iii Contents Page Foreword iv Introduction. v 1 Scope 1 2 Normative references 1 3 Manufacture of reference blocks. 1 4 Calibrating machine 2 5 Calibration procedure. 5 6 Number of indentations 5 7 Uniformity of the reference blocks 5 8 Marking. 6 9 Validity 7 Annex A (informative) Examples of reference blocks. 8 Bibliography 9 EN ISO 145773:2002 iii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS-77541 O3:(2002E) vi I ©SO 2002 All irthgs ersedevr Foreword ISO (the International Organization for Standardization) 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 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 14577 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14577-3 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 3, Hardness testing. 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: Verification and calibration of testing machines Part 3: Calibration of reference blocks Annex A of this part of ISO 14577 is for information only. EN ISO 145773:2002 iv Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS-77541 O3:(2002E) I ©SO 2002 All irthgs ersedevr v Introduction Hardness 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, the effect of elastic deformation under the indenter has been ignored. ISO 14577 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 increasing 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 the need to measure the indent optically. ISO 14577 has been written to allow a wide variety of post test data analysis. EN ISO 145773:2002 v Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADR IS-77541 O3:(2002E) I ©SO 2002 All irthgs ersedevr 1 Metallic materials Instrumented indentation test for hardness and materials parameters Part 3: Calibration of reference blocks 1 Scope This part of ISO 14577 specifies a method for the calibration of reference blocks to be used for the indirect verification of testing machines for the instrumented indentation test, as specified in ISO 14577-2. NOTE The reference blocks may be calibrated in accordance with the field of application of the testing machine or with the materials parameters which are to be determined. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 14577. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 14577 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 376:1999, Metallic materials Calibration of force-proving instruments used for the verification of uniaxial testing machines ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters ISO 14577-1:2002, Metallic materials Instrumented indentation test for hardness and materials parameters Part 1: Test method ISO 14577-2:2002, Metallic materials Instrumented indentation test for hardness and materials parameters Part 2: Verification and calibration of testing machines ISO Guide to the Expression of Uncertainty in Measurement (GUM) 1) 3 Manufacture of reference blocks 3.1 The block shall be specially prepared and the attention of the manufacturer drawn to the need to use a manufacturing process which will give the necessary homogeneity, uniformity and stability of structure. 1) Published in 1993; corrected and reprinted in 1995. EN ISO 145773:2002 1 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:39:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS-77541 O3:(2002E) 2 I ©SO 2002 All irthgs ersedevr 3.2 Each block to be calibrated shall be of a thickness not less than 2 mm for the nano range, not less than 6 mm for the micro and not less than 16 mm for the macro range. NOTE If it is required by the manufacturing process, these values may be lower. 3.3 The reference blocks shall be free from magnetic forces. It is recommended that the manufacturer ensure that the blocks, if of steel, have been 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. 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 µm in 50 mm and the maximum error in parallelism does not exceed 10 µm in 50 mm. 3.5 The test surface shall be free from scratches 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 15 nm for the test surface and 0,8 µm for the support face; the sampling length, l, shall be 0,80 mm (see ISO 4287). For the nano range the surface roughness, Ra, shall not exceed 10 nm. If measured with an atomic-force- microscope (AMF) the sampling length, l, shall be 10 µm. NOTE At the nano range 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 mark