ISO 14916:1999

INTERNATIONAL ISO
STANDARD 14916
First edition
1999-08-01
Thermal spraying — Determination of
tensile adhesive strength
Projection thermique — Mesure de l'adhérence par essais de traction
A
Reference number
ISO 14916:1999(E)

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ISO 14916:1999(E)
Contents
Page
1 Scope .1
2 Normative reference .1
3 Term and definition .1
4 Equipment .2
5 Specimens.3
5.1 Shape .3
5.2 Preparation.5
5.3 Number of specimens to be tested.5
6 Procedure .5
7 Evaluation.5
8 Test report .5
9 Possible faults in the preparation of specimens and in testing .6
©  ISO 1999
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
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International Organization for Standardization
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Internet iso@iso.ch
Printed in Switzerland
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© ISO
ISO 14916:1999(E)
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.
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.
International standard, ISO 14916, was prepared by the European Committee for Standardization (as EN 582) and
was adopted, under a special “fast-track procedure”, by Technical Committee ISO/TC 107, Metallic and other
inorganic coatings in parallel with its approval by the ISO member bodies.
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INTERNATIONAL STANDARD  © ISO ISO 14916:1999(E)
Thermal spraying — Determination of tensile adhesive strength
1 Scope
In the test to determine the tensile adhesive strength of thermally sprayed deposits, the specimen is loaded in
tension.
The test is conducted to determine the strength of the coating and/or the strength of the bond between the spray
deposit and the parent metal.
The test is used to evaluate the effects of parent metal and spray material, preparation of the surface of the
workpiece, and the spraying conditions on the bond and adhesive strength of thermally sprayed coatings, or for
routine supervision of the spray works.
Comparative statements are to be based in the test report.
NOTE The tensile adhesive test method is not recommended for very thin and porous depsoits. In this case, a bend test
has proved to be more appropriate.
2 Normative reference
The following normative document contains provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent edition of the normative document listed 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 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1: Tensile testing machines.
3 Term and definition
For the purposes of this International Standard the following definition applies.
3.1
tensile adhesive strength R
H
strength obtained in the tension test, calculated from the quotient of the
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