ISO 4821:2022

Plain bearings — Dynamic adhesion test method for DLC coated parts under lubricated condition

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.

Edition	2022
Published Date	2022
Published By	International Standardization Organisation
Page Count	13