ISO 19207-2016 PDF

Full title and description

St ISO 19207-2016 — Thermal spraying — Classification method of adhesive strength by indentation. This International Standard specifies an indentation-based procedure (using a Vickers hardness testing machine) to classify the adhesive strength (adhesion index) of thermal-sprayed coatings, intended for relatively dense metallic, ceramic and cermet coatings and for comparison within each coating system.

Abstract

ISO 19207:2016 defines a classification method for the adhesive strength of thermal spray coatings at room temperature by applying an indentation test and determining the maximum indentation force without visible cracking (the adhesion index). It is applicable to relatively dense metal, ceramic and cermet coatings and is not recommended for very thin or very porous coatings or systems where cohesion is lower than adhesion; the method is typically suitable for coatings with porosity below approximately 15%.

General information

• Status: Published (confirmed as current in ISO 2022 review).
• Publication date: September 2016 (Edition 1, 2016-09).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.220.01 — Surface treatment; thermal spraying.
• Edition / version: Edition 1 (2016).
• Number of pages: 13.

Scope

Specifies a laboratory classification method using Vickers indentation to evaluate adhesive strength of thermal-sprayed coatings at room temperature by determining the maximum indentation force that does not produce visible cracking; intended for relatively dense metallic, ceramic and cermet coatings and intended for use in comparative assessment within the same coating system. The method excludes very thin, highly porous coatings and systems where coating cohesion is lower than adhesion; recommended suitability is for coatings with porosity less than about 15%.

Key topics and requirements

• Definition and use of an adhesion index derived from Vickers indentation testing (maximum indentation force without visible cracking).
• Test setup and procedure using a Vickers hardness testing machine (indentation application and observation of cracking).
• Applicability limits: suitable for relatively dense metal, ceramic and cermet coatings; not recommended for very thin or very porous coatings or where cohesion < adhesion.
• Guidance on interpretation: classification of adhesive strength for comparative evaluation within a coating system.
• Recommendation on porosity (approx. < 15%) for reliable application of the indentation method.

Typical use and users

Used by coating specialists, materials and surface-engineering laboratories, quality-control and inspection teams, coating manufacturers and specifiers, and researchers developing or qualifying thermal-spray coating systems. Typical applications include comparative adhesion assessment during development, production quality checks, and confirmation of adhesion performance within specified coating systems.

Related standards

ISO 19207:2016 is part of the body of ISO standards addressing thermal spraying (work of ISO/TC 107). Related standards include documents on qualification testing of thermal sprayers and on materials and coating types such as ISO 14918 (Qualification testing of thermal sprayers), ISO 2063‑1 (design and quality requirements for zinc/aluminium thermal-sprayed corrosion-protection systems), and ISO 14919 (wires, rods and cords for flame and arc spraying). These related standards address complementary test methods, material supply conditions and system-level requirements.

Keywords

thermal spraying; adhesive strength; adhesion index; Vickers indentation; coating adhesion; cermet coatings; ceramic coatings; metallic coatings; porosity; ISO/TC 107.

FAQ

Q: What is this standard?

A: ISO 19207:2016 is an International Standard that specifies a classification method for the adhesive strength of thermal-sprayed coatings using an indentation (Vickers) test and an adhesion index.

Q: What does it cover?

A: It covers the indentation-based test procedure at room temperature, the definition of an adhesion index (maximum indentation force without visible cracking), applicability and limitations (suitable for relatively dense metal, ceramic and cermet coatings; not recommended for very thin or highly porous coatings), and guidance for comparative evaluation within a coating system.

Q: Who typically uses it?

A: Coating manufacturers, materials and testing laboratories, quality and inspection personnel, specification writers, and researchers in surface engineering and thermal spray technologies.

Q: Is it current or superseded?

A: ISO 19207:2016 was published in September 2016 (Edition 1) and, according to ISO's review record, was confirmed as the current version in the 2022 review. Users should check the ISO catalogue or national standards bodies for any updates or amendments beyond that confirmation.

Q: Is it part of a series?

A: Yes — it is part of the ISO suite of standards on thermal spraying developed under ISO/TC 107; it complements other standards on thermal-spray materials, qualification tests and system requirements (for example ISO 14918, ISO 14919 and the ISO 2063 series).

Q: What are the key keywords?

A: Thermal spraying, adhesive strength, adhesion index, Vickers indentation, coating testing, cermet, ceramic coating, metallic coating, porosity.