ASTM G 73 Standard Practice for Liquid Impingement Erosion Testing

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ASTM G 73 Document Information:

Title
Standard Practice for Liquid Impingement Erosion Testing

ASTM International

Publication Date:
Nov 1, 2004

Scope:

This practice covers tests in which solid specimens are eroded or otherwise damaged by repeated discrete impacts of liquid drops or jets. Among the collateral forms of damage considered are degradation of optical properties of window materials, and penetration, separation, or destruction of coatings. The objective of the tests may be to determine the resistance to erosion or other damage of the materials or coatings under test, or to investigate the damage mechanisms and the effect of test variables. Because of the specialized nature of these tests and the desire in many cases to simulate to some degree the expected service environment, the promulgation of a method is not deemed practicable. This practice gives guidance in setting up a test, and specifies test and analysis procedures and reporting requirements that can be followed even with quite widely differing materials, test facilities, and test conditions. It also provides a standardized scale of erosion resistance numbers applicable to metals and other structural materials. It serves, to some degree, as a tutorial on liquid impingement erosion.

The values stated in SI units are to be regarded as standard. The inch-pound units in parentheses are provided for information.

This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.

Keywords:

droplet impact

erosion

erosion by liquids

erosion resistance

erosion test

liquid impact

liquid impingement

rain erosion

rotating arm apparatus

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