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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ASTM G32 Captivation Erosion Test Button

This must be considered in planning, conducting and reporting a test program. The result would not be representative of a field application, where the hydrodynamic generation of cavitation is independent of the coating.

An alternative method for similar purposes is Test Method Gwhich employs a b32 liquid jet to produce erosion on a stationary specimen. For specific safety warning information, see 6.

For this reason, the consistency of results between different test methods or under different field conditions is not very good. The method therefore b32 a small-scale, relatively simple and controllable test that can 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. It permits deviations from some of these conditions if properly documented, that may be appropriate for some purposes.

Test Method G73 describes another testing approach specifically intended for that type of environment. The results of either, or anycavitation erosion test should be used with caution; see 5. It also specifies standard reference materials that must be used to verify the operation of the facility and to define the normalized erosion resistance of other test materials.

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The stationary specimen approach can also be used for brittle materials which can not be formed into a awtm specimen wstm into a disc that can be cemented to a threaded specimen, as required for this test method see 7. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Active view current version of standard. The latter may be more suitable for materials not readily formed into a precisely shaped specimen.

It gives guidance on setting up a suitable apparatus and covers test and reporting procedures and precautions to be taken.

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. Small differences between two materials are probably not significant, and their relative ranking astk well be reversed in another test.

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.

Erosion Testing – Innovative Test Solutions – Schenectady, NY

The vibration induces the formation and collapse of cavities in the liquid, astmm the collapsing cavities produce the damage to and erosion material loss of the specimen. Link to Active This link will always route to the current Active version of the standard. The inch-pound units given in parentheses are for information only.

Historical Version s – view previous versions of standard. However, adaptations of the basic method and apparatus have aastm used for such purposes see 9. It permits g322 from some of these conditions if properly documented, that may be appropriate for some purposes. The method therefore offers a small-scale, relatively simple and controllable test that can be used to compare the cavitation gg32 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 asgm of the standard. Link to Active This link will always route to the current Active version of the standard. Guide G may be followed in order to determine the synergism between the mechanical and electrochemical effects. It also specifies standard reference 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.

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 inch-pound units given in parentheses are for information only. 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.

For specific safety warning information, see 6. However, adherence to this test method in all other respects will permit a g332 understanding and t32 between the results of different investigators.

The aetm 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. It gives guidance on setting up a suitable apparatus and covers test and reporting procedures and precautions to be taken.