Metallic and other inorganic coatings - Method for quantitative measurement of adhesion by tensile test

This European Standard specifies a quantitative method for the measurement of adhesion of metallic and related inorganic coatings applied to metallic surfaces.  Typical coatings for which this European Standard applies are copper, nickel, nickel plus chromium, silver, tin, tin-nickel alloys, zinc, gold.  This European Standard does not apply to certain hot dip and spray coatings.

Metallische und andere anorganische Überzüge - Verfahren zur quantitativen Messung der Haftfestigkeit durch den Zugversuch

Dieses Dokument legt ein quantitatives Verfahren zur Messung der Haftfestigkeit metallischer und anderer anorganischer Überzüge fest, die auf metallische, Polymer- und Glas Grundwerkstoffe aufgebracht wurden.
Typische Überzüge, für die dieses Dokument gilt, sind metallische Überzüge, z. B. aus Aluminium, Kupfer, Nickel, Chrom Nickel, Silber, Zinn, Zinn Nickel Legierungen, Zink, Gold und andere anorganische Überzüge, z. B. aus Oxiden oder Nitriden der Elemente Aluminium, Indium und Indium Zinn, Silicium, Niob, Titan, Wolfram, Zirkon und anderen.
Dieses Dokument gilt nicht für bestimmte Schmelztauchüberzüge, aufgespritzte und mechanische Überzüge, für welche andere Normen wie z. B. EN ISO 14916 oder EN ISO 4624 angewendet werden dürfen.
Diese Messung ist gültig, wenn die Kohäsions- und Adhäsionseigenschaften des Klebstoffes größer als die des zu prüfenden Überzuges sind.

Revêtements métalliques et autres revêtements inorganiques - Méthode de mesurage quantitatif de l'adhérence par essai de traction

Le présent document spécifie une méthode quantitative de mesurage de la résistance d’adhérence des revêtements métalliques et autres revêtements inorganiques appliqués sur des substrats métalliques, en polymères ou en verre.
Les revêtements types auxquels le présent document s’applique sont les revêtements métalliques, tels que l’aluminium, le cuivre, le nickel, le nickel-chrome, l’argent, l’étain, les alliages étain-nickel, le zinc et l’or, ainsi que les autres revêtements inorganiques, tels que les oxydes ou les nitrures par exemple d’aluminium, indium et indium-étain, silicium, niobium, titane, tungstène, zirconium et autres.
Le présent document ne s’applique pas à certains revêtements obtenus par immersion à chaud, par pulvérisation ou par voie mécanique, pour lesquels d’autres normes telles que l’EN ISO 14916 ou l’EN ISO 4624 peuvent s’appliquer.
Le mesurage est valable si les propriétés de cohésion et d’adhérence de l’adhésif sont supérieures à celles du revêtement soumis à l’essai.

Kovinske in druge anorganske prevleke - Metoda za kvantitativno merjenje adhezije z nateznim preskusom

Ta evropski standard določa kvantitativno metodo za merjenje adhezije kovinskih in drugih anorganskih prevlek na kovinskih površinah.  Običajne prevleke, za katere se uporablja ta evropski standard, so baker, nikelj, nikelj-krom, srebro, kositer, zlitine kositer-nikelj, cink, zlato.  Ta evropski standard se ne uporablja za nekatere vroče prevleke in prevleke, nanesene z brizganjem.

General Information

Status
Published
Public Enquiry End Date
14-Jun-2017
Publication Date
09-Dec-2018
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Dec-2018
Due Date
10-Feb-2019
Completion Date
10-Dec-2018

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SLOVENSKI STANDARD
SIST EN 13144:2019
01-januar-2019
1DGRPHãþD
SIST EN 13144:2003
Kovinske in druge anorganske prevleke - Metoda za kvantitativno merjenje
adhezije z nateznim preskusom

Metallic and other inorganic coatings - Method for quantitative measurement of adhesion

by tensile test

Metallische und andere anorganische Überzüge - Verfahren zur quantitativen Messung

der Haftfestigkeit durch den Zugversuch
Revêtements métalliques et autres revêtements inorganiques - Méthode de mesurage
quantitatif de l'adhérence par essai de traction
Ta slovenski standard je istoveten z: EN 13144:2018
ICS:
25.220.40 Kovinske prevleke Metallic coatings
SIST EN 13144:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 13144:2019
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SIST EN 13144:2019
EN 13144
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2018
EUROPÄISCHE NORM
ICS 25.220.40; 25.220.99 Supersedes EN 13144:2003
English Version
Metallic and other inorganic coatings - Method for
quantitative measurement of adhesion by tensile test

Revêtements métalliques et autres revêtements Metallische und andere anorganische Überzüge -

inorganiques - Méthode de mesurage quantitatif de Verfahren zur quantitativen Messung der Haftfestigkeit

l'adhérence par essai de traction durch den Zugversuch
This European Standard was approved by CEN on 28 September 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 references

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 member 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, France, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13144:2018 E

worldwide for CEN national Members.
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SIST EN 13144:2019
EN 13144:2018 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 4

4 Determination of adhesive strength by measurement...................................................................... 5

4.1 Principle ............................................................................................................................................................. 5

4.2 Testing devices ................................................................................................................................................. 5

4.3 Adherend preparation .................................................................................................................................. 8

4.4 Adhesives and their application ................................................................................................................ 8

4.5 Test assemblies ................................................................................................................................................ 9

4.6 Measurement ................................................................................................................................................. 11

5 Expression of results ................................................................................................................................... 12

5.1 Adhesive strength ........................................................................................................................................ 12

5.2 Failure pattern .............................................................................................................................................. 12

6 Test report ...................................................................................................................................................... 14

7 Adhesion appraisal test ............................................................................................................................. 14

Bibliography ................................................................................................................................................................. 15

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SIST EN 13144:2019
EN 13144:2018 (E)
European foreword

This document (EN 13144:2018) has been prepared by Technical Committee CEN/TC 262 “Metallic and

other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys”,

the secretariat of which is held by BSI.

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 May 2019 and conflicting national standards shall be

withdrawn at the latest by May 2019.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 13144:2003.
In comparison with EN 13144:2003, the following modifications have been made:
— the Scope has been rewritten to give more information;
— normative references have been added;
— the terms and definitions have been updated;

— in addition to the tensile testing machine previously described, the centrifuge has been added as a

further type of testing machine;

— sample description has been expanded to describe test stamps, planar samples and coated samples;

— consideration of adhesives and their application has been expanded;
— the measurement section has been revised;

— the expression of results clause has been revised and failure pattern according to

EN ISO 10365:1995 added;
— the test report clause has been revised.

According to the CEN-CENELEC Internal Regulations, the national 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, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
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SIST EN 13144:2019
EN 13144:2018 (E)
1 Scope

This document specifies a quantitative method for the measurement of adhesive strength of metallic

and other inorganic coatings applied to metallic, polymer and glass substrates.

Typical coatings for which this document applies are metallic coatings such as aluminium, copper,

nickel, nickel plus chromium, silver, tin, tin-nickel alloys, zinc, gold as well as other inorganic coatings

such as oxides or nitrides, e.g. of aluminium, indium and indium-tin, silicon, niobium, titanium, tungsten,

zirconium and others.

This document does not apply to certain hot dip, spray and mechanical coatings, for which other

standards may apply, e.g. EN ISO 14916 or EN ISO 4624.

The measurement is valid if the cohesion and adhesion properties of the adhesive are higher than those

of the coating subjected to test.
2 Normative references

The following 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.

EN 15870, Adhesives - Determination of tensile strength of butt joints (ISO 6922:1987 modified)

EN ISO 4624, Paints and varnishes - Pull-off test for adhesion (ISO 4624)

EN ISO 10365:1995, Adhesives - Designation of main failure patterns (ISO 10365:1992)

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological 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/obp
3.1
adhesive strength
force per unit area required to separate a coating from its substrate

Note 1 to entry: Adhesion can be deemed inadequate in the presence of blisters, scaling and any defect that

results from the separation of the coating from its substrate.
3.2
adhesion

physical property resulting from the magnitude of forces joining the atoms and/or molecules at an

interface of two materials
3.3
cohesion

physical property resulting from the magnitude of forces joining the atoms and/or molecules within

one material
3.4
test block

metallic cylinder used for pull-off tests within the tensile testing machine (described in 4.2.1.2)

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SIST EN 13144:2019
EN 13144:2018 (E)
3.5
test stamp

metallic disc or cylinder used for pull-off tests within the tensile testing machine (described in 4.2.1.3)

or centrifuge (described in 4.2.2.2)
3.6
substrate
base material to which the coating material is applied or is to be applied

Note 1 to entry: Real substrate from the production process or reference substrate of different material coated

in the production process or test block of steel coated in the production process.

3.7
sample

coating/substrate system under test as used within the tensile testing machine or centrifuge as

counterpart either of test blocks (3.4) or test stamps (3.5)
4 Determination of adhesive strength by measurement
4.1 Principle

The tensile strength required to separate the coating from its substrate is measured perpendicular to

the substrate.

The result of the measurement is influenced not only by the mechanical properties of the system to be

characterized, but also by the nature and preparation of the substrate.

The result of the measurement can also be affected by internal stress in the coating, which influences

adhesion.

The result of the measurement is the tensile strength required to break the weakest interface or the

weakest constituent of the test assembly. A combination of both adhesive and cohesive ruptures can

also occur. A detailed description and designation of failure patterns is provided in 5.2 and in Table 1.

4.2 Testing devices
4.2.1 Tensile testing machine
4.2.1.1 General

A single-sample testing device that requires a two-sided sample clamping and usually a double cardanic

suspension realized by means of ball joints.

It shall be capable of being used in accordance with 4.6. The tensile testing machine is operated either in

the force- or path-controlled mode.

NOTE Suitable set-ups for the application of the tensile force are shown in Figure 1.

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SIST EN 13144:2019
EN 13144:2018 (E)
a) b)
Key
1 sample
2 adhesive
3 test block (Figure 1a)/test stamp (Figure 1b)
4 sample support
5 ball joint
6 suspension

Figure 1 — Set-ups for the application of the tensile force (tensile testing machine)

4.2.1.2 Test blocks

Test blocks shall be made of machined steel, having a cylindrical shape and a diameter of 20 mm,

10 mm or 7 mm in accordance with EN 15870 and EN ISO 4624 (unless otherwise agreed upon).

The thickness of the test block shall be not less than 10 mm to ensure the absence of deformations

during the test. Prior to use, the faces acting as adherend shall be machined perpendicular to the major

axis of the block.
4.2.1.3 Test stamps

Test stamps may be monolithic or modular. They shall be made of machined steel or other metals. In the

case of monolithic test stamps, clamping body and adherend are one piece made from the same

material. In the case of modular test stamps, clamping body and adherend are separate, but connectable

pieces and can be made from different materials. The adherend diameters shall be 20 mm, 10 mm or

7 mm in accordance with EN 15870 and EN ISO 4624 (unless otherwise agreed upon).

Prior to use, the face acting as adherend shall be machined perpendicular to the major axis of the test

stamp.
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SIST EN 13144:2019
EN 13144:2018 (E)
4.2.1.4 Planar samples

Coated substrate under consideration with diameters or size above the diameter of the test block or test

stamp. Except for component geometry, the sample represents the interface of coating and substrate as

processed and adhesive strength is tested as shown in set-ups according to Figure 1a) and 1b) and

assemblies of Figures 3 and 4.
4.2.1.5 Coated test blocks

Alternatively to using planar samples (4.2.1.4), it is also possible to coat test blocks (4.2.1.2) and use

them as samples to be tested. Adhesive strength is tested as shown in a set-up according to Figure 1a)

and an assembly according to Figure 5.
4.2.2 Centrifuge
4.2.2.1 General

A multiple-sample testing device for the tensile test that requires a one-sided sample support.

It shall be capable of being used in accordance with 4.6. The centrifuge is operated in the force-

controlled mode.

In combination with the coating/substrate system (acting as planar sample 4.2.2.3) and a monolithic or

modular test stamp bonded on the coating/substrate system, a guiding sleeve acts both as sample

support and as test stam
...

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