What is BS EN 17393 about?
BS EN 17393 specifies the procedure for the determination of coating strength, and hence of cohesive strength in a tubular coating tensile test.
The test specified in BS EN 17393 is intended to determine the tensile coating strength parallel to the spray layers (normal to the spray direction) and to identify differences in particle cohesion quality, as caused by defects such as internal delamination at cracks or oxides between the spray particles or splats.
The tubular coating tensile test is suitable for sprayed coatings deposited using metallic materials (not carbides and ceramics).
Note: The tubular coating tensile test is not suitable for fused sprayed coatings deposited using self-fluxing alloys.
Who is BS EN 17393 for?
BS EN 17393 on thermal spraying is applicable to:
- Manufacturers of thermal sprayed coatings
- Aerospace Industry
- Manufacturers stationary gas turbine
- Automotive Industry
- Machinery construction,
- Printing and chemical
- Oil extraction and refining fluid control industries,
- Steel construction in the field of off-shore and on-shore
Why should you use BS EN 17393?
Metals are prone to degradation due to corrosion, reaction with chemical or wear. Thermal spraying can be done in order to increase their lifespan.
The BS EN 17393 guidelines on tubular coating tensile test supports quality assurance and is designed to be used for coating optimization by evaluating the effects of coating parameters and spray material on coating quality. The guidelines in BS EN 17393 provides comprehensive quality improvement of thermally sprayed coating.
BS EN 17393 helps in the determination of tensile strength of a thermally sprayed coating which has significant importance regarding product-supporting quality as well as design and development of coating which affects important factors such as transfer efficiency, microstructure, surface quality, etc.
Microscopic examinations of the fractured surface can provide further information on failure modes and support the quality assessment of the coating microstructure as well as the assessment of influences resulting from loads during the coating tensile test (TCT) test.