This standard is issued under the fixed designation C; the number 1 This test method is under the jurisdiction of ASTM Committee B08 on Metallic. ASTM C determines the bonding strength of thermal spray coatings. ASTM Standard C, “Standard Test Method for Adhesion or Cohesive Strength of Flame-Sprayed Coatings,” is widely used in industry and research for .

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ASTM C – DFD® Instruments

The Problems The method works but is associated c6333 a number of drawbacks: The test should not be considered to provide an intrinsic value for direct use in making calculations, such as to determine if a coating will withstand specific environmental stresses. It is adapted particularly for testing coatings applied by thermal spray, which is defined to include the combustion flame, plasma arc, two-wire arc, high-velocity oxygen fuel, and detonation processes for spraying feedstock, which may be in the form of, wire, rod, or powder.

We use cookies to improve your browsing experience. Cohesion strength of thermal spray is a measurement of tensile strength of the adhesive coating.

ASTM C633 Thermal Spray Coatings Adhesion Test Equipment and Solutions

So instead of controlling the distance the the dolly is traveling during pull testing the machine should be able to control the materials pull stress increase measured in MPa or psi per second.

Force 6c33 of 5 kN to kN 1, lbf tolbf Adjustable test space The most popular choice for static tension and compression tests These dual column testers are available in both tabletop and floor standing models.

Because of cc633 stresses in thermal spray coatings, actual strength depends upon the shape of the particular coated part. Subscribe to Instron News! They were big machines with a measurably moving traverse to measure elongation. The test consists of coating one face of a substrate fixture, bonding aetm coating to the face of a loading fixture, and subjecting this assembly of coating and fixtures to a tensile load normal to the plane of the coating.

ASTM C ASTM C is a test method used in quality control, acceptance testing, developing thermal spray coatings and comparing adhesion or cohesion of adhesion thermal spray coating materials. We offer machines, apparatus, testers, tensile grips, test fixtures, clamps, holders, jigs, faces, jaws, extensometers, environmental and humidity chambers, furnaces, baths and custom solutions for unique applications. Higher temperature testing is restricted by the need for a suitable adhesive bonding agent.


These parameters were originally set because of the limitations of tensile testing machines. Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill. After positioning this assembly into the tensile testing machine they were pulled apart.

ASTM C is mainly a quality control test but may be used to qualify thermal spray equipment. Link to Active This link will always route to the current Active version of the standard. These settings will only apply to the browser and device you are currently using.

To spray-coat a cylinder end is not necessarily a good representation of spraying another surface; If a coating adhesion on a particular substrate is to be investigated special test cylinders of the same material need to be made; The test procedure is slow and cumbersome; X633 everybody has access to a tensile testing machine, and they can be very expensive to purchase The Solution The PAT adhesion tester has addressed all these problems.

The results of the test should not be used to make absolute calculations relating to how much stress a part can withstand during use due to the shape ast between the part and atsm ASTM C test fixture.

Also, in use, a coating may be stressed in a more complex manner than is practical for a standard test.

ASTM C Thermal Spray Coatings Adhesion Test Equipment and Solutions

The maximum force is then normalized over the asym area to give adhesion or cohesion strength of the thermal spray. In addition to this, we find it extremely useful to incorporate an axial slack coupling into the design of the loading fixture as it greatly improves setup time. Different size blocks can be made to test the full dimensional range of specimens allowable by the standard.

Maximum pull stress is recorded. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.


How can we help you? By means of our testing expertise and modular product design, we will help find the testing solution that is right for you. Next Checking to see if you are a returning visitor…. Contact Us Request an Accessory Catalog.

In order to measure the bond strength, the thermal spray coating is applied to the substrate which is in the shape of a cylinder. ASTM C determines the degree of adhesion or bonding strength of a coating to a substrate or the cohesion strength of the coating in a tension normal to the surface.

ASTM C633 Bond Strength Fixture Thermal Spray | GC633-179

Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user wstm. Have a question about conducting the test for this standard? ASTM C is a test method used in quality control, acceptance testing, developing thermal spray coatings and comparing adhesion or cohesion of adhesion thermal spray coating materials.

Give one of our application engineers a call today for help with creating the best budget and testing plan according to ASTM C Your choices will not impact your visit. The entire ASTM C specification should be reviewed prior to performing the test to ensure correct substrate surface preparation, application of coatings and test speeds.

Data rate used cc633 capture the maximum peak Fixtures in accordance with the standard Instron Solution: To ensure the direction of force application is perpendicular to the coated surfaces, ASTM C specifies to use a self-aligning load fixture to attach these substrate cylinders to the test frame. The strain in a thin coating cannot be sensibly measured ast, tensile rate awtm millimeters per minute is not relevant.

The limitation is imposed because an adhesive bonding agent is used in the test. Thermal spray coating materials include ceramics and metals. The purpose of this standard is to aid in testing bond strength of thermal spray coatings.

With PAT there is a choice.