ISO 4821:2022 View larger

ISO 4821:2022

M00007641

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ISO 4821:2022 Plain bearings - Dynamic adhesion test method for DLC coated parts under lubricated condition

standard by International Organization for Standardization, 05/01/2022

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This document specifies a procedure to measure the adhesion strength of diamond-like carbon (DLC) coatings specified in ISO 20523 by detecting acoustic emission signals using ball-on-disk method under the lubricated condition. DLC is normally coated on metal or ceramic.

The test results are not applicable when the DLC coated parts operate in an unlubricated environment.