ASTM G32 PDF

CAVITATION EROSION TESTING (ASTM G). SONICS & MATERIALS, INC. Because evaluation of cavitation erosion resistance can be facilitated using. Controllable and reproducible ultrasonication is needed to perform cavitation erosion testing in accordance with ASTM Standard G Hielscher ultrasonic . ASTM G32 Vibratory Captivation Erosion Test Buttons are available in Note: Metal Samples manufactures test apparatus in accordance with ASTM standards.

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It also specifies standard reference materials that must be used to verify the aastm of the facility and to define the normalized erosion resistance of other test materials.

For specific safety warning information, see 6. Historical Version s – view previous versions of standard.

Link to Active This link will always route to the current Active version of the standard. It also specifies standard astn materials that must be used to verify the operation of the facility and to define the normalized erosion resistance of other test materials.

While several investigators have used this approach see X4. The inch-pound units given in parentheses are for information only. The result would not be representative of a field application, where the hydrodynamic generation of cavitation is independent of the coating. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

An alternative method for similar purposes is Test Method Gwhich employs a cavitating liquid jet to produce erosion on a stationary specimen. The inch-pound units given in parentheses are for information only.

Small differences between two materials are probably not significant, and their relative ranking could well be reversed in another test. The method therefore offers a small-scale, relatively simple and controllable test that aetm be used to compare the cavitation erosion resistance of different materials, to study in detail the nature and progress of damage in a given material, or — by varying some of the test conditions — to study the effect of test variables on the damage produced.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. It gives guidance on setting up a suitable apparatus and covers test and reporting procedures and precautions to be taken.

Guide G may be followed in order to determine the synergism between the mechanical and electrochemical effects.

Erosion Testing

This is because the compliance of the coating on the specimen may reduce the severity of the liquid cavitation induced by its vibratory motion. The method therefore offers a small-scale, relatively simple and controllable test that can be used to compare the cavitation erosion resistance of different materials, to study asttm detail the nature and progress of satm in a given material, or—by varying some of the test conditions—to study the effect of test variables on the damage produced.

The vibration induces the formation and collapse of cavities in the liquid, and the collapsing cavities produce the damage to and erosion material loss of the specimen. This must be considered in planning, conducting and reporting a test program.

ASTM G32 – 10 Standard Test Method for Cavitation Erosion Using Vibratory Apparatus

In that method, the specimen is fixed within the liquid container, and the vibrating tip of the horn is placed in close proximity to it. It gives guidance on setting up a suitable apparatus and covers test and reporting procedures and precautions to be taken.

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For this reason, the consistency of results between different test methods or under different field conditions is not very good.

The latter may be asmt suitable for materials not readily asfm into a precisely shaped specimen.

ASTM G32 – 16 Standard Test Method for Cavitation Erosion Using Vibratory Apparatus

It permits deviations from some of these conditions if properly documented, that may be appropriate for some purposes. The results of either, or anycavitation erosion test should be used with caution; see 5. The stationary specimen approach can also be used for brittle materials which can not be formed into a threaded specimen nor into a disc that can be cemented to a threaded specimen, as required for this test method see 7.

For specific safety warning information, see 6. Test Method G73 describes another testing approach specifically intended for that type of environment. However, adherence to this test method in all other respects will permit a better understanding and correlation between the results of different investigators. Active view current version of standard.

The vibration induces the formation and collapse of cavities in the liquid, and the collapsing cavities produce the astj to and erosion material loss of the specimen. Link to Active This link will always route to the current Active y32 of the standard. It permits deviations from some of these conditions if properly documented, that may be appropriate for some purposes.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

However, adaptations of the basic method and apparatus have been used for such purposes see 9.