FprEN ISO 14577-3

SLOVENSKI STANDARD
01-september-2024
Nadomešča:
SIST EN ISO 14577-3:2015
Kovinski materiali - Instrumentirano vtiskanje pri preskušanju trdote in drugih
lastnosti materialov - 3. del: Kalibracija referenčnih etalonov (ISO/DIS 14577-
3:2024)
Metallic materials - Instrumented indentation test for hardness and materials parameters
- Part 3: Calibration of reference blocks (ISO/DIS 14577-3:2024)
Metallische Werkstoffe- Instrumentierte Eindringprüfung zur Bestimmung der Härte und
anderer Werkstoffparameter- Teil3: Kalibrierung von Referenzproben(ISO/DIS 14577-
3:2024)
Matériaux métalliques - Essai de pénétration instrumenté pour la détermination de la
dureté et de paramètres des matériaux - Partie 3: Étalonnage des blocs de référence
(ISO/DIS 14577-3:2024)
Ta slovenski standard je istoveten z: prEN ISO 14577-3
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 14577-3
ISO/TC 164/SC 3
Metallic materials — Instrumented
Secretariat: DIN
indentation test for hardness and
Voting begins on:
materials parameters —
2024-07-31
Part 3:
Voting terminates on:
2024-10-23
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
ICS: 77.040.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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Reference number
ISO/DIS 14577-3:2024(en)
DRAFT
ISO/DIS 14577-3:2024(en)
International
Standard
ISO/DIS 14577-3
ISO/TC 164/SC 3
Metallic materials — Instrumented
Secretariat: DIN
indentation test for hardness and
Voting begins on:
materials parameters —
Part 3:
Voting terminates on:
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
ICS: 77.040.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
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BE CONSIDERED IN THE LIGHT OF THEIR
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Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 14577-3:2024(en)
ii
ISO/DIS 14577-3:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Manufacture of reference blocks . 1
4 Calibrating machine . 2
4.1 General .2
4.2 Calibration of the test force .2
4.3 Verification of the indenter .3
4.3.1 General .3
4.3.2 Vickers indenter .3
4.3.3 Berkovich, modified Berkovich, corner cube indenters, ball indenters, and
spheroconical indenters .4
4.4 Calibration of the displacement measuring device .4
4.5 Verification of the testing cycle .5
5 Calibration procedure . 5
6 Number of indentations . 5
7 Uniformity of the reference blocks . 5
8 Marking . . 6
9 Validity . 7
Bibliography . 8

iii
ISO/DIS 14577-3:2024(en)
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.
The procedures used 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 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 identified 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 the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO's adherence to the WTO principles in the Technical Barriers to Trade (TBT)
see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 164, Mechanical testing of metals, Subcommittee
SC 3, Hardness testing.
This third edition cancels and replaces the second edition (ISO 14577-3:2015), which has been technically
revised.
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
— Part 4: Test method for metallic and non-metallic coatings
— Part 5: Linear elastic dynamic instrumented indentation testing (DIIT)

iv
ISO/DIS 14577-3:2024(en)
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 (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 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 requirement 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 analysis.

v
DRAFT International Standard ISO/DIS 14577-3:2024(en)
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 use for the indirect
verification of testing machines for the instrumented indentation test as specified in ISO 14577-2.
2 Normative references
The 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 the referenced document (including any amendments) applies.
ISO 376, 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, Metallic materials — Instrumented indentation test for hardness and materials parameters —
Part 1: Test method
ISO 14577-2, Metallic materials — Instrumented indentation test for hardness and materials parameters —
Part 2: Verification and calibration of testing machines
3 Manufacture of reference blocks
3.1 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 greater or equal to that given in the table 1.
Table 1 — Thickness requirements for reference blocks
Range Thickness /mm
Nano 2
Micro up to 500 mN 3
Micro up to 2 N 5
Macro up to 60 N 6
Macro up to 1 kN 12
Macro up to 30 kN 16
3.3 The reference blocks shall be free from magnetic forces. It is recommended that the manufacturers
ensure that the blocks, if of steel, are demagnetized at the end of the manufacturing process.

ISO/DIS 14577-3:2024(en)
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 f
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