prEN ISO 14577-1
(Main)Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 1: Test method (ISO/DIS 14577-1:2024)
Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 1: Test method (ISO/DIS 14577-1:2024)
ISO 14577-1:2015 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 µm; and nano range: h ≤ 0,2 µm.
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 and 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 an upper limit given by the test force (2 N) and a lower limit given by the indentation depth of 0,2 µm.
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 indenters 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 thin 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).
Metallische Werkstoffe - Instrumentierte Eindringprüfung zur Bestimmung der Härte und anderer Werkstoffparameter - Teil 1: Prüfverfahren (ISO/DIS 14577‑1:2024)
Matériaux métalliques - Essai de pénétration instrumenté pour la détermination de la dureté et de paramètres des matériaux - Partie 1: Méthode d'essai (ISO/DIS 14577-1:2024)
L'ISO 14577-1:2015 spécifie la méthode d'essai de pénétration instrumenté pour la détermination de la dureté et d'autres paramètres de matériaux pour les trois plages suivantes : Macro-intervalle, 2 kN ≤ F ≤ 30 kN ; Micro-intervalle, 2 > F ; h > 0,2 µm ; et Nano-intervalle, h ≤ 0,2 µm.
Pour la nano-intervalle, la déformation mécanique dépend fortement de la forme réelle de la pointe du pénétrateur, et les paramètres de matériaux calculés sont influencés de manière significative par la fonction d'aire de contact du pénétrateur utilisé sur la machine d'essai. En conséquence, un étalonnage soigné de l'instrument et de la forme du pénétrateur est nécessaire pour obtenir une reproductibilité acceptable des paramètres de matériaux déterminés avec différentes machines.
Les macro- et micro-intervalles se distinguent par les forces d'essai en relation avec la profondeur d'empreinte.
L'attention est attirée sur le fait que le micro-intervalle a une limite supérieure donnée par la force d'essai (2 N) et une limite inférieure donnée par la profondeur d'empreinte de 0,2 µm.
La détermination de la dureté et d'autres paramètres de matériaux est donnée dans l'Annexe A.
L'endommagement du pénétrateur est possible pour les pressions de contact élevées. Pour cette raison, des pénétrateurs en carbure sont souvent utilisés pour la macro-intervalle. Pour les éprouvettes à dureté et module d'élasticité élevés, il convient de tenir compte de l'influence de la déformation du pénétrateur sur le résultat d'essai.
Cette méthode d'essai est également applicable à des revêtements métalliques et non métalliques minces et à des matériaux non métalliques. Dans ce cas, il convient de prendre en compte les spécifications données dans les normes applicables (voir également 6.3 de la présente norme et l'ISO 14577‑4).
Kovinski materiali - Instrumentirano vtiskanje pri preskušanju trdote in drugih lastnosti materialov - 1. del: Preskusna metoda (ISO/DIS 14577-1:2024)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2024
Kovinski materiali - Instrumentirano vtiskanje pri preskušanju trdote in drugih
lastnosti materialov - 1. del: Preskusna metoda (ISO/DIS 14577-1:2024)
Metallic materials - Instrumented indentation test for hardness and materials parameters
- Part 1: Test method (ISO/DIS 14577-1:2024)
Metallische Werkstoffe - Instrumentierte Eindringprüfung zur Bestimmung der Härte und
anderer Werkstoffparameter - Teil 1: Prüfverfahren (ISO/DIS 14577-1:2024)
Matériaux métalliques - Essai de pénétration instrumenté pour la détermination de la
dureté et de paramètres des matériaux - Partie 1: Méthode d'essai (ISO/DIS 14577-
1:2024)
Ta slovenski standard je istoveten z: prEN ISO 14577-1
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 14577-1
ISO/TC 164/SC 3
Metallic materials — Instrumented
Secretariat: DIN
indentation test for hardness and
Voting begins on:
materials parameters —
2024-08-01
Part 1:
Voting terminates on:
2024-10-24
Test method
Matériaux métalliques — Essai de pénétration instrumenté pour
la détermination de la dureté et de paramètres des matériaux —
Partie 1: Méthode d'essai
ICS: 77.040.10
THIS DOCUMENT IS A DRAFT CIRCULATED
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IS THEREFORE SUBJECT TO CHANGE
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This document is circulated as received from the committee secretariat.
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Reference number
ISO/DIS 14577-1:2024(en)
DRAFT
ISO/DIS 14577-1:2024(en)
International
Standard
ISO/DIS 14577-1
ISO/TC 164/SC 3
Metallic materials — Instrumented
Secretariat: DIN
indentation test for hardness and
Voting begins on:
materials parameters —
Part 1:
Voting terminates on:
Test method
Matériaux métalliques — Essai de pénétration instrumenté pour
la détermination de la dureté et de paramètres des matériaux —
Partie 1: Méthode d'essai
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
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Published in Switzerland Reference number
ISO/DIS 14577-1:2024(en)
ii
ISO/DIS 14577-1:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Symbols and designations . 2
4 Principle . 4
5 Testing machine. 4
6 Test piece . 5
7 Procedure . 6
8 Uncertainty of the results . 9
9 Test report .10
Annex A (normative) Materials parameters determined from the force/indentation depth data
set .11
Annex B (informative) Types of control use for the indentation process .23
Annex C (normative) Machine compliance and indenter area function .24
Annex D (informative) Notes on diamond indenters .26
Annex E (normative) Influence of the test piece surface roughness on the accuracy of the results.27
Annex F (informative) Correlation of indentation hardness H to Vickers hardness .28
IT
Annex G (normative) Determination of drift and minimizing creep influence .30
Annex H (informative) Estimation of uncertainty of the calculated values of hardness and
materials parameters .32
Annex I (normative) Calculation of radial displacement correction . 41
Bibliography .44
iii
ISO/DIS 14577-1:2024(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 14577-1:2015), 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 14577-1:2024(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
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.
Although the indentation modulus (E ) value obtained in this test method is not directly equivalent to
IT
Young’s modulus or the orientation specific elastic modulus of the material indented, E is, however,
IT
equivalent to the isotropic Hill average of the elastic plane strain modulus of the material when there is no
pile up and no residual stress.
ISO 14577 (all parts) has been written to allow a wide variety of post-test data analysis.
v
DRAFT International Standard ISO/DIS 14577-1:2024(en)
Metallic materials — Instrumented indentation test for
hardness and materials parameters —
Part 1:
Test method
1 Scope
This 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 µm;
— nano range: h ≤ 0,2 µm.
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 and 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 an upper limit given by the test force (2 N) and a
lower limit given by the indentation depth of 0,2 µm.
The determination of hardness and other material parameters is given in Annex A.
At high contact pressures, damage to the indenter is possible. For test pieces with very high hardness
and modulus of elasticity, permanent indenter deformation can occur and can be detected using suitable
reference ma
...
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